Env Texas Citizen Lobby, Inc. v. ExxonMobil ( 2020 )


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  •      Case: 17-20545   Document: 00515508326     Page: 1   Date Filed: 07/29/2020
    IN THE UNITED STATES COURT OF APPEALS
    FOR THE FIFTH CIRCUIT    United States Court of Appeals
    Fifth Circuit
    FILED
    July 29, 2020
    No. 17-20545
    Lyle W. Cayce
    Clerk
    ENVIRONMENT TEXAS CITIZEN LOBBY, INCORPORATED; SIERRA
    CLUB,
    Plaintiffs - Appellees
    v.
    EXXONMOBIL CORPORATION; EXXONMOBIL CHEMICAL COMPANY;
    EXXONMOBIL REFINING & SUPPLY COMPANY,
    Defendants - Appellants
    Appeal from the United States District Court
    for the Southern District of Texas
    USDC No. 4:10-CV-4969
    Before DAVIS, COSTA, and OLDHAM, Circuit Judges.
    GREGG COSTA, Circuit Judge:
    The Clean Air Act authorizes “any person” to sue polluters. 42 U.S.C. §
    7604(a). Any recovery goes to the government. This citizen suit provision
    harkens back to pre-Founding English law that allowed private individuals,
    through various writs, to enforce laws on behalf of the government. See Steven
    L. Winter, The Metaphor of Standing and the Problem of Self-Governance, 40
    STAN. L. REV. 1371, 1396–99 (1988); Raoul Berger, Standing to Sue in Public
    Actions: Is It a Constitutional Requirement, 78 YALE L. J. 816, 827 (1969). But
    modern citizen suits present challenges for the Article III “cases” or
    “controversies” requirement under which a plaintiff must suffer an injury from
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    the defendant’s conduct.     See generally RICHARD FALLON ET AL, HART &
    WECHSLER’S THE FEDERAL COURTS AND FEDERAL SYSTEM 151–54 (5th ed.
    2003).   Indeed, citizen suits under two other environmental statutes—the
    Clean Water Act and Endangered Species Act—resulted in leading Supreme
    Court standing decisions. Friends of the Earth, Inc. v. Laidlaw Envtl. Servs.,
    Inc., 
    528 U.S. 167
    , 180–81 (2000); Lujan v. Defenders of Wildlife, 
    504 U.S. 555
    ,
    560–61 (1992); .
    This citizen suit seeking to recover for Clean Air Act violations at the
    largest petroleum and petrochemical complex in the nation again raises this
    tension between citizen suits and Article III. The principal issue in this second
    appeal of the case is whether plaintiffs have standing to recover for more than
    16,000 violations of emission standards.
    I.
    The ExxonMobil complex in Baytown, Texas is massive. It includes
    refinery, a chemical plant, and an olefins plant.
    Emissions from the complex are regulated in part by permits. The Texas
    Commission on Environmental Quality issues the permits under Title V of the
    Clean Air Act. The Commission, along with the EPA, enforces the permits.
    To monitor compliance, the Commission requires polluters to document
    unauthorized “emissions events”—that is, unplanned or unscheduled
    emissions. If the event produces pollutants in excess of thresholds, the polluter
    must report it to the Commission. See 30 TEX. ADMIN CODE § 101.201(a); see
    also
    id. 101.1(88), (89)
    (setting “reportable quantit[ies]” of emissions). We will
    call these “reported events.” If the event produces pollutants below reportable
    levels, polluters must nevertheless maintain records documenting the
    emission.
    Id. § 101.201(b). We
    will call these “recorded events.”
    In addition to the powers it gives regulators, the Clean Air Act gives
    citizens a role in enforcing its requirements. A citizen may seek civil penalties,
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    payable to the government, for each day of repeated or ongoing violations of an
    emissions standard. 42 U.S.C. §§ 7604(a)(1), 7413(e)(2). Environment Texas
    Citizen Lobby and Sierra Club brought such a suit for each of Exxon’s reported
    and recorded emissions events from October 2005 through September 2013 in
    total, 241 reported events and 3,735 recorded events.                        By Plaintiffs’
    calculations, which Exxon does not challenge, 1 the nearly 4,000 emissions
    events resulted in 16,386 days of violations.
    The thousands of violations fell into the following buckets:
    • Count I alleged violations of a permit condition prohibiting “upset
    emissions.” An upset emission is an “unplanned and unavoidable
    breakdown or excursion of a process or operation that results in
    unauthorized emissions.”      30 TEX. ADMIN CODE § 101.1(110).
    Plaintiffs calculated 10,583 days of upset-emission violations,
    spanning 24 different pollutants, at the Baytown refinery.
    • Count II alleged violations of the Maximum Allowable Emission Rate
    Tables—permit conditions setting hourly emissions limits for specific
    pollutants. Plaintiffs calculated 5,709 days of these violations,
    spanning more than a dozen pollutants, at the olefins plant and
    chemical plant.
    • Count III alleged 18 days of violations of a 1,200 pound/hour limit on
    emissions of highly reactive volatile organic compounds.
    • Count IV alleged 44 days of violations of an EPA rule limiting visible
    emissions from flares (which are used to burn waste gases) to no more
    than 5 minutes during any 2-hour period.
    • Count V alleged 32 days of violations of a rule requiring flares to
    operate with a pilot flame.
    1 If an emissions event released multiple pollutants, each with its own emissions
    standard, Plaintiffs counted each standard violated as a separate day of violation. A violation
    lasting less than a day could thus count as multiple days of violations. The district court
    adopted this calculation method, and Exxon does not dispute it.
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    Our court has already grappled with this case. Following a bench trial,
    the district court initially found that only a small fraction of the violations were
    “actionable” because the Clean Air Act limits citizen suits to violations that
    were repeated in the past or ongoing at the time of the complaint. 
    66 F. Supp. 3d
    875, 895–902 (S.D. Tex. 2014); see also 42 U.S.C. § 7604(a)(1) (allowing suit
    if defendant caused “repeated” violations or is “in violation”). It went on to rule
    that even if every alleged violation were actionable, it would decline to assess
    a civil penalty against Exxon. 
    66 F. Supp. 3d
    at 904. A panel of this court
    vacated and remanded, concluding that the district court had too narrowly
    analyzed actionability and three of the factors (duration, seriousness, and the
    economic benefit of noncompliance) courts must consider in assessing a civil
    penalty. 
    824 F.3d 507
    , 514 (5th Cir. 2016); see also 42 U.S.C. § 7413(e)(1)
    (enumerating penalty factors).
    On remand, the district court determined that the 16,386 days of
    violations alleged in Counts I–V were actionable. And after reconsidering the
    penalty factors, the district court imposed a $19.95 million civil penalty. Exxon
    appeals, attacking the judgment on three fronts: standing, affirmative
    defenses, and penalty factors.
    II.
    Congress granted “any person” the right to sue under the Clean Air Act.
    42 U.S.C. § 7604(a). But that does not mean that any person can always bring
    such a suit. The Constitution limits congressional grants of federal court
    jurisdiction. Hodgson v. Bowerbank, 9 U.S. (5 Cranch) 303, 304 (1809) (“Turn
    to the article of the constitution of the United States, for the statute cannot
    extend the jurisdiction beyond the limits of the constitution.”). Those limits
    include Article III’s case-or-controversy requirement, which, among other
    things, requires that the plaintiff have standing. 
    Lujan, 504 U.S. at 560
    –61.
    And unlike qui tam relators bringing False Claims Act cases, who have
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    standing via the government’s injury because their entitlement to a bounty is
    a partial assignment of the claim to the relator, Vt. Agency of Nat. Res. v.
    United States ex rel. Stevens, 
    529 U.S. 765
    , 773–74 (2000), citizens suing under
    the bountyless environmental statutes must meet the standing requirement in
    their own right, 
    Laidlaw, 528 U.S. at 180
    –81 (explaining in Clean Water Act
    citizen suit that “the relevant showing for purposes of Article III standing . . .
    is not injury to the environment but injury to the plaintiff”). Plaintiffs thus
    must show an injury, traceable to the defendant’s challenged conduct, that will
    be redressed by a favorable decision. 
    Lujan, 504 U.S. at 560
    –61.
    A.
    As a threshold matter, Plaintiffs argue that because the prior panel
    reached the merits, it must have determined it had jurisdiction. If that is the
    case, then Plaintiffs’ standing is the binding law of the case.        See Todd
    Shipyards Corp. v. Auto Transp., S.A., 
    763 F.2d 745
    , 750 (5th Cir. 1985) (“The
    law of the case doctrine . . . generally precludes reexamination of issues of law
    or fact decided on appeal, either by the district court on remand or by the
    appellate court itself on a subsequent appeal.”).
    But we cannot assume that the prior panel implicitly decided standing.
    Because Article III standing goes to our subject matter jurisdiction, broad
    applications of the law of the case doctrine are inappropriate. See Propes v.
    Quarterman, 
    573 F.3d 225
    , 228 (5th Cir. 2019) (quoting 18B CHARLES ALAN
    WRIGHT ET AL., FEDERAL PRACTICE AND PROCEDURE § 4478.5, at 790 (2d ed.
    2002)). For that reason, a later panel cannot “defer to the prior panel’s exercise
    of jurisdiction as correct where the issue was neither raised by the parties nor
    addressed by the court.” USPPS, Ltd. v. Avery Dennison Corp., 
    647 F.3d 274
    ,
    284 (5th Cir. 2011). Exxon’s brief to the original panel did include a footnote
    disputing that Plaintiffs had standing. But the footnote went on to say that
    Exxon was not disputing the issue because the district court’s original decision
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    found no repeated and ongoing violations to support penalties. The prior
    panel’s decision makes no mention of standing, and we cannot infer from a
    single, equivocating footnote on the issue that the panel resolved standing
    without saying so.
    B.
    We thus must address standing. The main legal dispute is whether
    Plaintiffs must prove standing for each violation they alleged.
    An explanation of interaction between Clean Air Act claims, violations,
    and penalties is needed to understand the parties’ dispute. The Act provides a
    cause of action—that is, a claim—only for repeated violations of a particular
    emission standard. 42 U.S.C. § 7604(a)(1); Env’t 
    Tex., 824 F.3d at 518
    –19.
    That means a plaintiff must assert at least two violations of the same standard
    in order to allege a claim. Once that threshold is met, however, there is no
    ceiling on how many violations of that emission standard a plaintiff may pack
    into that claim. And a “penalty may be assessed for each day of violation.” 42
    U.S.C. § 7413(e)(2). There is a cap on the penalty for each day of violation:
    $32,500 or $37,500 in this case, depending on when the violation occurred. 2
    Consequently, if Plaintiffs could sue only for 100 days of violations, they could
    at most recover roughly $3.5 million. In light of the more than 16,000 days of
    violations found in this case, the statutory cap exceeded $600 million. Thus
    the dispute about whether Plaintiffs must demonstrate standing for each
    violation.
    2The EPA can seek no more than the per-day maximum when it seeks civil penalties.
    42 U.S.C. § 7413(b); see also 40 C.F.R. § 19.4 (showing increases in section 7413(b)’s
    maximum to adjust for inflation). But although citizen suits may seek a penalty for “each
    day of violation,” the Clean Air Act does not expressly limit citizen suits to the per-day
    maximum. See 42 U.S.C. § 7413(e). It differs in that way from the Clean Water Act. See 33
    U.S.C. §§ 1319(d), 1365(a). Despite this textual incongruity, some courts apply the per-day
    maximum to Clean Air Act citizen suits. See, e.g., Pound v. Airosol Co., 
    498 F.3d 1089
    , 1095
    (10th Cir. 2007). Plaintiffs in this case do not deny that the per-day maximum applies.
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    Plaintiffs argue that although they must prove standing for each Clean
    Air Act claim (that is, group of violations of a particular emission standard),
    there is not a separate standing inquiry for each violation asserted as part of
    that claim. But what we have just explained—that Clean Air Act penalties are
    tied to violations, not the broader claims—refutes this position. Plaintiffs’
    argument thus runs up against the principle that one injury does not entitle a
    litigant to right other wrongs that did not injure it. Assuming that Plaintiffs’
    members’ injuries were traceable to some of Exxon’s violations, that does not
    mean they “possess by virtue of that injury the necessary stake in litigating
    conduct of another kind, although similar, to which [they have] not been
    subject.” Blum v. Yaretsky, 
    457 U.S. 991
    , 999 (1982). This principle typically
    arises in suits against the government, preventing plaintiffs with standing to
    challenge one facet of a regulatory scheme from challenging the whole
    regulatory scheme. See, e.g.
    , id. at 100–01;
    Legacy Cmty. Health Servs., Inc. v.
    Smith, 
    881 F.3d 358
    , 366–70 (5th Cir. 2018). But because it rests on Article
    III’s case-or-controversy requirement, it applies to this suit too.
    An example with an obvious answer shows why it must generally be true
    that a plaintiff needs standing for each violation for which it seeks a penalty.
    Assume that a citizen moved from Florida to a Baytown neighborhood near the
    Exxon complex in 2005.       That citizen would not have standing to assert
    violations that occurred in 2004. So Clean Air Act plaintiffs cannot seek
    penalties for a particular violation if they would lack standing to sue for that
    violation in a separate suit, any more than a plaintiff with the “right to
    complain of one administrative deficiency” can “bring the whole structure of
    state administration before the courts for review.” Lewis v. Casey, 
    518 U.S. 343
    , 358 n.6 (1996).
    Admittedly, no court appears to have found standing for some Clean Air
    Act violations but not others, and that gives us some pause. Numerous cases
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    have instead recognized standing in environmental citizen suits without
    separate analyses for each violation. In Laidlaw, for instance, a Clean Water
    Act defendant violated its mercury discharge limits on 489 
    occasions. 528 U.S. at 176
    . The Court did not parse one day of violations from another in holding
    that the plaintiff had standing. See
    id. at 180–88.
    Neither did this court when
    we analyzed standing to sue under the Clean Air Act for 625 days of emissions
    violations at a refinery near the one in this case. Texans United for a Safe
    Econ. Educ. Fund v. Crown Cent. Petroleum Corp., 
    207 F.3d 789
    , 791 n.4 (5th
    Cir. 2000).
    But these other cases do not involve the number and variety of violations
    that this case does (24 different pollutants). That explains why in this case,
    unlike in Laidlaw and Texans United, the standing inquiry is not one-size-fits-
    all. Citizens suits under the environmental laws typically allege injuries from
    discharges or emissions of one or two pollutants exceeding one or two emissions
    standards, all in the same manner.          See, e.g., 
    Laidlaw, 528 U.S. at 176
    (recounting defendant’s discharge of mercury, in excess of its permitted
    allotment, from its wastewater treatment plant into a river); Texans 
    United, 207 F.3d at 791
    (observing that defendant exceeded federal emissions limits
    for sulfur dioxide and hydrogen sulfide); Sierra Club v. Tenn. Valley Auth., 
    430 F.3d 1337
    , 1340–41 (11th Cir. 2005) (analyzing standing to sue for emitting
    smoke that was darker than maximum opacity limits permitted); Friends of
    the Earth, Inc. v. Gaston Copper Recycling Corp., 
    204 F.3d 149
    , 153 (4th Cir.
    2000) (noting plaintiffs’ allegation that defendant regularly exceeded discharge
    limits during releases into a lake). That the plaintiffs in those cases repeatedly
    suffered the same injury resulting from a series of similar discharges does not
    mean that a plaintiff injured by one violation can automatically challenge all
    a defendant’s violations.
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    Another difference is that in each of the cases on which Plaintiffs rely,
    there was no doubt that the pollutant emitted could cause the alleged injury.
    The Laidlaw plaintiffs, for instance, asserted injuries to their aesthetic and
    recreational interests because the defendant’s discharges polluted a river that
    they otherwise would have 
    enjoyed. 528 U.S. at 183
    –84. Plaintiffs, by contrast,
    assert a variety of aesthetic and health-related injuries, allegedly traceable to
    24 different pollutants emitted in a variety of ways (flaring, leaks, workplace
    accidents, etc.). The impact of those different violations varied greatly. Count
    I, for instance, alleges violations of a prohibition on upset—that is, unplanned
    or accidental—emissions. Because upset emissions are not authorized in any
    amount, each pollutant emitted during an upset event is a violation, regardless
    of how small the emission may have been. As the district court observed, that
    means Exxon’s thousands of violations include accidents as minor as smoke
    caused by plugging in an extension cord and a fire in a cigarette butt can that
    lasted one minute. Both accidents lasted “0.0 hours” and emitted 0.01 pounds
    of carbon monoxide and 0.01 pounds of nitrous oxide.                         By Plaintiffs’
    calculations, that meant a total of four days of violations. 3
    To be sure, many of Exxon’s emissions violations were of a serious
    magnitude.      Some flaring events and leaks lasted for hours and spilled
    thousands of pounds of harmful pollutants into the air. But because of the
    great variety of the challenged emissions—both in terms of type and scale—we
    cannot say that Plaintiffs’ proving standing for some violations necessarily
    means they prove standing for the rest.
    3 Count II also alleged violations of emissions limits on more than a dozen pollutants,
    for some of which there is no authorized amount. So like Count I, Count II includes violations
    of 0.0 pound-per-hour emissions limits.
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    C.
    Having decided that Clean Air Act plaintiffs must prove standing for
    each violation in support of their claims, we now examine whether these
    plaintiffs have done so. Before doing so, we emphasize it does not follow from
    the need to establish standing for each violation that separate proof of standing
    is needed for each violation. As we have discussed, many courts—including
    our court and the Supreme Court—have allowed the same testimony to support
    standing for multiple violations (just not the number and variety of violations
    at issue here).    And, as always, a factfinder may rely on circumstantial
    evidence and draw reasonable inferences from the evidence. Gaston 
    Copper, 204 F.3d at 163
    .
    Because this case was tried, Plaintiffs needed to prove standing by a
    preponderance of the evidence. See 
    Lujan, 504 U.S. at 561
    . A factual finding
    that a plaintiff met that burden is reviewed for clear error. Department of
    Commerce v. New York, 
    139 S. Ct. 2551
    , 2565 (2019); In re Deepwater Horizon,
    
    739 F.3d 790
    , 805 (5th Cir. 2014); Cole v. Gen. Motors Corp., 
    484 F.3d 717
    , 721
    (5th Cir. 2007).
    We address standing’s three requirements in turn.
    1.
    Plaintiffs easily demonstrated that their members were injured. They
    put on testimony from four of their members, which the district court credited.
    Here is a sampling. Sharon Sprayberry, who lived in Baytown from 2004
    through 2012, could see flares, smoke, and haze coming from the Exxon
    complex from her house. She experienced respiratory problems when she lived
    in Baytown and does not return to visit friends because the last time she did,
    the air quality made it hard to breathe. Richard Shae Cottar, who lived a
    quarter mile from the complex from April 2010 through September 2012, could
    also see emissions from the Exxon complex and ultimately moved two miles
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    away out of concern for his family’s health and safety. He likes to take his
    family to visit a nature center next to the Exxon complex, but he leaves
    whenever he sees emissions. Marilyn Kingman heads to Baytown a few times
    a week to run errands, recreate, and go to church. But she’s scared of what
    she smells coming from the complex and limits her grandchildren’s outdoor
    activities in Baytown whenever she smells odors or sees haze. Diane Aguirre
    Dominguez lived in Houston but regularly visited her parents in Baytown until
    she moved in March 2013.       She is a runner, but she stopped running in
    Baytown because it hurt her throat and made it hard to breathe.
    In sum, throughout the claims period, at least one of Plaintiffs’ members
    regularly saw flares, smoke, and haze coming from the complex; smelled
    chemical odors; suffered from allergy-like or respiratory problems; feared for
    their health; refrained from outdoor activities; or moved away. Each of those
    experiences was an Article III injury.       See 
    Laidlaw, 528 U.S. at 183
    –84
    (interference with recreational activity); Texans 
    United, 207 F.3d at 792
    (“breathing and smelling” polluted air); Sierra Club, Lone Star Chapter v.
    Cedar Point Oil Co. Inc., 
    73 F.3d 546
    , 557 (5th Cir. 1996) (unpleasant sights
    and smells of pollution); Sierra Club v. EPA, 
    762 F.3d 971
    , 977 (9th Cir. 2014)
    (“credible threat to the plaintiff’s physical well-being from airborne pollutants”
    (quoting Hall v. Norton, 
    266 F.3d 969
    , 976 (9th Cir. 2001)). Plaintiffs have
    thus met standing’s first requirement. See Summers v. Earth Island Inst., 
    555 U.S. 488
    , 494 (2009) (noting that organizations can establish standing through
    a member).
    2.
    The next question is whether the injuries these individuals suffered are
    traceable to the violations. This is the crux of the dispute. And while Plaintiffs
    view traceability too loosely in contending that proving it for one violation
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    proves it for all, Exxon views this element too strictly when it comes to how
    specific the proof must be.
    Exxon argues that Plaintiffs cannot trace any of their injuries to
    violations except for those occurring during five “correlated” events. These are
    five instances when one of Plaintiffs’ members linked a particular violation to
    a particular injury suffered on a particular day. One member, for instance,
    took a video of an emissions event that woke him up in the middle of the night,
    then checked Exxon’s reported emissions and linked what he had seen, heard,
    and smelled to the report Exxon filed after the event.
    Requiring proof that specific is not consistent with the traceability
    requirement, which requires less of a causal connection than tort law (and even
    tort causation would not require such specific proof). See Gaston 
    Copper, 204 F.3d at 161
    (“[T]he ‘fairly traceable’ standard is ‘not equivalent to a
    requirement of tort causation.’” (quoting Pub. Interest Research Grp. of N.J. v.
    Powell Duffryn Terminals, Inc., 
    913 F.2d 64
    , 72 (3d Cir. 1990)). After all, the
    standard is that the injury be fairly traceable to the challenged conduct, not
    definitively so. See, e.g., 
    Laidlaw, 528 U.S. at 180
    ; Allen v. Wright, 
    468 U.S. 737
    , 751 (1984). Indeed, our court has already rejected Exxon’s argument:
    Clean Air Act plaintiffs need not “connect the exact time of their injuries with
    the exact time of an alleged violation.” Texans 
    United, 207 F.3d at 793
    .
    Traceability instead requires something more than conjecture (“The
    Exxon complex in Baytown emits pollutants, and I live in Baytown”) but less
    than certainty (“I was outside the Baytown complex on November 15, between
    1:00 and 5:00 pm, at which time hydrogen sulfide was emitted, and I recall my
    throat feeling sore even though it did not feel sore earlier in the day”). We have
    described the showing as requiring evidence that the defendant’s violations
    were of a type that “causes or contributes to the kinds of injuries alleged by the
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    plaintiffs.” 4 Cedar 
    Point, 73 F.3d at 557
    (quoting Powell 
    Duffryn, 913 F.2d at 72
    ); see also Friends of the Earth, Inc. v. Crown Cent. Petroleum Corp., 
    95 F.3d 358
    , 360–61 (5th Cir. 1996) (same).
    With these general principles in mind, we can address whether Plaintiffs
    demonstrated traceability. The district court made findings relevant to this
    question: Plaintiffs’ members’ observational injuries—seeing flares, smoke,
    and haze—were obviously traceable to Exxon because those visual blights
    originated from the Baytown complex. Chemical odors could likewise be traced
    to Exxon because they got stronger when Plaintiffs’ members approached or
    happened to be downwind from the complex. Seeing flares, smoke, and haze,
    as well as smelling chemical odors, made Plaintiffs’ members fear for their
    health, which in turn made them refrain from outdoor activities or move away
    from the complex. The chemical odors could be traced to the Exxon complex
    because they got stronger when the wind blew in the direction of a member’s
    home or when a member drove closer to the complex. And because members’
    4 Exxon does not question the vitality of Cedar Point or our other decisions applying
    this standard, but Judge Oldham’s opinion does. And while he notes that this standard
    originated in the Third Circuit, neither that court nor others with a similar approach have
    concluded that subsequent Supreme Court decisions require something different. In order to
    do so, we would have to find not just that Supreme Court decisions since 1996 have cast some
    doubt on Cedar Point, but that they mark an “unequivocal” change in the governing law.
    Gruver v. La. Bd. of Supervisors, 
    959 F.3d 178
    , 181 (5th Cir. 2020).
    In fact, the only subsequent Supreme Court standing decision involving a citizen suit
    is at odds with a tightened, tort-like traceability standard that would require directly
    connecting a plaintiff’s injury to a specific day’s discharge. In Laidlaw, the Court recognized
    standing for a Friend of the Earth member who said she no longer “picnicked, walked,
    birdwatched, and waded in and along the” polluted river because “she was concerned about
    harmful effects from discharged 
    pollutants.” 528 U.S. at 182
    . Her testimony was not more
    specific than that; she did not, for example, tie her concerns to discharges occurring on
    particular days. Indeed, the Laidlaw dissent criticized the Court for recognizing standing
    based on “unsupported and unexplained affidavit allegations of ‘concern.’”
    Id. at 714
    (Scalia,
    J., dissenting). Laidlaw thus reiterates that the “fairly traceable” requirement does not
    require tort-like causation with its proximate cause requirement.
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    physical symptoms improved when they moved away from the complex, those
    injuries were traceable to Exxon too.
    The district court also observed—correctly as we have already
    explained—that traceability does not require Plaintiffs to draw a causal
    connection between their members’ injuries and specific incidents on
    particular days. Just as the would-be fishermen, hikers, and bird watchers in
    Laidlaw did not have to connect their injury to specific days when discharges
    into the river occurred, 
    see 528 U.S. at 183
    –84, a person living near a refinery
    who cannot “enjoy[] . . . their surroundings” because of emissions need not
    connect their injuries to the “exact dates” when violations happened, see
    Texans 
    United, 207 F.3d at 792
    –93.
    But despite the district court’s sound reasoning, we must remand due to
    our holding that Plaintiffs needed to prove standing for each violation. The
    district court outlined in general terms how Exxon’s violations had injured
    Plaintiffs’ members; it did not asses traceability as to each violation. That is
    necessary because it is not apparent that all of Exxon’s violations were capable
    of causing the types of injuries Plaintiffs’ members suffered.
    To address that problem and establish traceability on remand, Plaintiffs
    must make two showings. First, that each violation in support of their claims
    “causes or contributes to the kinds of injuries” they allege. Cedar 
    Point, 73 F.3d at 557
    (quoting Powell 
    Duffryn, 913 F.2d at 72
    ). Given the district court’s
    findings regarding injury and traceability, a violation will satisfy that standard
    if it (1) created flaring, smoke, or haze; (2) released pollutants with chemical
    odors; or (3) released pollutants that cause respiratory or allergy-like
    symptoms.
    Second, Plaintiffs must demonstrate the existence of a “specific
    geographic or other causative nexus” such that the violation could have
    affected their members.     Cedar 
    Point, 73 F.3d at 558
    n.24; cf. Center for
    14
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    No. 17-20545
    Biological Diversity v. EPA, 
    937 F.3d 533
    , 538–39 (5th Cir. 2019) (holding that
    plaintiffs could not establish injury based on their general use of parts of the
    Gulf of Mexico to challenge drilling permits for specific areas of that vast body
    of water). In Clean Water Act cases, for example, the nexus requirement
    means that a plaintiff significantly downstream from the defendant must do
    more than point to the defendant’s having discharged pollutants upstream to
    show traceability. Cedar 
    Point, 73 F.3d at 558
    n.24; see also, e.g., Crown 
    Cent., 95 F.3d at 361
    –62 (finding that plaintiffs eighteen miles downstream lacked
    evidence of discharges’ range of impact such as water samples or expert
    testimony). That said, there is no need for evidence of geographic range when
    plaintiffs “sit[] squarely in the discharge zone of a polluting facility” such that
    their proximity speaks for itself. Gaston 
    Copper, 204 F.3d at 162
    .
    In making this geographic nexus inquiry, the district court should
    distinguish between two kinds of violations. On the one hand, there were
    small-magnitude emissions events that constituted violations only because
    Exxon’s permits established zero-emissions standards. For these events, the
    district court must decide whether evidence shows that the emitted pollutants
    could have reached beyond the Exxon complex into the offsite areas of Baytown
    where Plaintiffs’ members lived and recreated. It is possible—particularly
    given the size of the Exxon complex (3,400 acres),—that pollutants emitted in
    a small quantity could have dissipated before leaving Exxon grounds. See Ctr.
    for Biological 
    Diversity, 937 F.3d at 545
    (noting that not only “the proximity of
    the source and the injury” but also “whether discharges will evaporate or
    become diluted” bears on the standing inquiry). We repeat, though, that there
    is no need for “scientific certainty.” Save Our Community v. EPA, 
    971 F.2d 1155
    , 1161 (5th Cir. 1992) (quoting Powell 
    Duffryn, 913 F.2d at 72
    ). If the
    district court finds by a preponderance of the evidence that an emission was
    large enough that it could have sent pollutants in discernible quantities—that
    15
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    No. 17-20545
    is, enough to cause chemical odors, allergy symptoms, or respiratory
    symptoms 5—across the fence surrounding the Baytown complex, Plaintiffs will
    have standing to recover a civil penalty for that emission. They need not offer
    direct evidence that their members actually inhaled pollutants from each
    emission.
    But other violations involve Exxon’s releasing pollutants in excess of
    nonzero emissions limits. For emissions that exceeded those thresholds, it is
    an easier inference that the pollutants escaped the Baytown complex. The
    same is true for emissions of pollutants that, though not permitted in any
    amount, were nevertheless of a “reportable quantity” under state regulations.
    See 30 TEX. ADMIN. CODE § 101.1(89). While it is not clear that emissions of a
    trace amount of pollutants could have reached outside the Exxon complex to
    affect Plaintiffs’ member, it is reasonable to conclude that emissions in excess
    of 5,000 pounds of carbon monoxide or 500 pounds of sulfur dioxide—the
    reportable thresholds for those pollutants
    , id. § 101.1(89)(A)(i)(III)(-d-); 40
    C.F.R. pt. 355, app. A—could have. And because Plaintiffs’ members lived and
    recreated in immediate proximity to the Exxon complex, they were “squarely
    in the discharge zone” for emissions of those quantities. Gaston 
    Copper, 204 F.3d at 162
    .
    Finally, we note that the geographic nexus inquiry is unnecessary for
    any violation that could have caused or contributed to flaring, smoke, or haze,
    even if the emission was of a small magnitude. Plaintiffs’ members could
    undoubtedly see—as they said they did in the testimony the district court
    5  Because there is some evidence on these topics—for instance, Plaintiffs’ expert
    Edward Brooks testified about the levels of sulfur dioxide and hydrogen sulfide necessary to
    cause adverse health effects,—a remand is appropriate for the district court to decide whether
    it is credible and sufficient to meet Plaintiffs’ burden.
    16
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    No. 17-20545
    credited—flares, smoke, and haze from their homes and other areas outside
    the Exxon complex. That evidence is enough for these violations.
    Under the above rubric, the district court’s findings support traceability
    for a substantial number of Exxon’s violations.      Many of Count I’s upset
    emissions and Count II’s excessive emissions caused flaring, and the violations
    in Count IV consist of flaring events that caused excessive smoke. Also, each
    of the 241 reported events caused multiple days of violations.
    A limited remand is needed, however, for the district court to determine
    what other violations could have contributed to Plaintiffs’ members’ injuries
    and then tabulate its findings. This is no doubt an arduous task, but we do not
    require line-by-line findings for the thousands of violations. When consistent
    with the principles we have outlined, the court may group violations by type
    and magnitude in making its findings.
    The following should guide the district court’s inquiry:
    1. For any violation that could cause or contribute to flaring, smoke, or
    haze, the district court’s findings have established traceability. The
    district court need only decide which violations fall within this
    category.
    2. For violations that could not contribute to flaring, smoke, or haze, the
    district court should first consider whether the pollutant emitted
    could cause or contribute either to (a) chemical odors or (b) allergy-
    like or respiratory symptoms. If so, the district court will conduct the
    geographic nexus inquiry described above, finding it satisfied if the
    emission (i) violated a nonzero emissions standard, (ii) had to be
    reported under Texas regulations, or (iii) is otherwise proven to be of
    sufficient magnitude to reach Baytown neighborhoods outside the
    Exxon complex in quantities sufficient to cause chemical odors,
    allergy-like symptoms, or respiratory symptoms.
    3.
    Because the evidence supports the district court’s findings of injury and
    traceability for a number of the violations, we proceed to the final standing
    17
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    requirement: redressability. Exxon argues that Plaintiffs failed to prove that
    civil penalties would “likely” redress their members’ injuries. 
    Lujan, 504 U.S. at 561
    .
    But when violations are “ongoing at the time of the complaint,” civil
    penalties redress injuries caused by those violations because they “encourage
    defendants to discontinue current violations and deter them from committing
    future ones.” 
    Laidlaw, 528 U.S. at 186
    , 188. The idea is that “a defendant
    once hit in its pocketbook will surely think twice before polluting again.” Id at
    186.
    The question, then, is whether Exxon continued to commit violations
    after the plaintiffs filed suit.   Plaintiffs sued in December 2010 and seek
    penalties for violations that occurred through September 2013.           It seems
    straightforward that this almost three-year postsuit continuation of
    wrongdoing establishes redressability.      See, e.g.
    , id. at 176–77
    (finding
    redressability when plaintiffs sued in 1992 for violations that continued
    through 1995); Gaston 
    Copper, 204 F.3d at 163
    (finding redressability when
    hundreds of violations occurred after the suit was filed).
    In the face of this authority, Exxon raises a novel argument: it contends
    its violations are undeterrable because they do not arise from a single “root
    cause.” Penalizing Exxon for past violations will not prevent future violations,
    the argument goes, because it is impossible to fix every possible cause of
    violations. Even if Exxon fixes the problems that caused its past violations,
    new issues will inevitably lead to future violations. This case thus presents
    the rare circumstance according to Exxon, when “the deterrent effect of a claim
    for civil penalties becomes so insubstantial or so remote that it cannot support
    citizen standing.” 
    Laidlaw, 528 U.S. at 186
    .
    Exxon overstates the redressability requirement. Civil penalties need
    not completely prevent future violations. It is enough for the Plaintiffs to show
    18
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    that Exxon’s violations are susceptible to a reduction in frequency or
    magnitude. See Massachusetts v. EPA, 
    549 U.S. 497
    , 524 (2007) (“While it may
    be true that regulating motor-vehicle emissions will not by itself reverse global
    warming, it by no means follows that we lack jurisdiction to decide whether
    EPA has a duty to take steps to slow or reduce it.”).
    There is a glaring problem with the idea that Exxon could not have
    reduced its emissions violations after the filing of this suit: Exxon has done
    just that. Exxon steadily and substantially reduced the rate and magnitude of
    emissions violations throughout the claims period.           Annualized violations
    declined from roughly 300 tons of emissions in 2010 to roughly 100 tons by
    September 2013.         The three-year average of emissions violations at the
    Baytown complex shows even more success: it went from about 700 tons/year
    from 2008–10 all the way down to just over 100 tons/year for 2011–13. What
    is more, Exxon agreed with state regulators in a February 2012 settlement to
    undertake projects that would substantially reduce emissions of several
    different pollutants.
    Even if Exxon cannot address every “root cause” of its emissions
    violations, it has implemented measures that drastically reduced those
    violations. The district court thus correctly found that Plaintiffs’ injuries are
    redressable.
    III.
    Next are Exxon’s affirmative defenses. The district court did not need to
    consider them the first time around because it declined to impose civil
    penalties. Exxon reasserted two on remand, an “Act of God” defense and a
    statutory no-fault defense, but the district court rejected both. Plaintiffs have
    standing for at least some of the violations that Exxon asserts the defenses
    against: at a minimum, many of the challenged violations involved flaring.
    Some of that flaring occurred during the Hurricane Ike shutdown, the subject
    19
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    of the Act of God defense, and Exxon also contends its statutory defenses apply
    to some flaring. So we will address Exxon’s defenses.
    A.
    Exxon asserted the Act of God defense under the Texas Water Code. See
    TEX. WATER CODE § 7.251. The defense excuses emissions violations that were
    “caused solely by an Act of God, war, strike, riot, or other catastrophe.”
    Id. Exxon argues that
    Hurricane Ike was such an occurrence and that Ike caused
    10 reported events, resulting in 199 days of violations.
    The district court rejected the Act of God defense because it concluded it
    is not part of Texas’s state implementation plan (SIP). A brief background on
    SIPs is in order. Under the Clean Air Act, each state submits an SIP for EPA
    approval.    42 U.S.C. § 7410.   The SIPs detail how the state will achieve
    compliance with National Ambient Air Quality Standards.            See generally
    Luminant Generation Co. v. EPA, 
    675 F.3d 917
    , 921–22 (5th Cir. 2013). Once
    approved, a state must seek EPA approval to modify its SIP. Tenn. Valley
    
    Auth., 430 F.3d at 1346
    ; see 42 U.S.C. § 7410(n)(1). That is because when the
    EPA approves a SIP, it becomes federal law. Safe Air for Everyone v. EPA, 
    488 F.3d 1088
    , 1096–97 (9th Cir. 2007). Unless an SIP authorizes a state-law
    defense, the defense is not available in a Clean Air Act suit. Tenn. Valley 
    Auth., 430 F.3d at 1346
    .
    Texas’s SIP, as approved by the EPA in 1972, contains an Act of God
    defense.    It incorporates part of the Texas Clean Air Act, see 40 C.F.R.
    § 52.2270(e), which included the following provision when the SIP was
    approved: “The liabilities which would otherwise be imposed by this Act
    . . . shall not be imposed due to any violation caused by an act of God . . . or
    other catastrophe.” TEX. REV. CIV. STAT. art. 4477-5, § 4.05 (West 1976). But
    that provision was repealed in 1989. Act of June 14, 1989, 71st Leg., ch. 678,
    § 13(1), 1989 TEX. SESS. LAW SERV. 3165 (West). Today, the Texas Clean Air
    20
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    Act’s “enforcement mechanisms” are codified in the Water Code, see BCCA
    Appeal Grp., Inc. v. City of Houston, 
    496 S.W. 1
    , 4–5 (Tex. 2016), which has a
    defense similar to the old one in the Texas Clean Air Act: “If a person can
    establish that an event that would otherwise be a violation . . . was caused
    solely by an act of God . . . or other catastrophe, the event is not a violation
    . . . .” TEX. WATER CODE § 7.251. But the Water Code provision never made its
    way directly into Texas’s SIP.
    Exxon thus blundered by citing the Water Code for the Act of God
    defense. But the Water Code defense is nearly identical to the repealed Texas
    Clean Air Act provision, which the EPA approved as part of the SIP long before
    it left the statute books. The Texas SIP—the governing federal law under the
    Clean Air Act—thus incorporates an Act of God defense. Exxon’s ability to
    assert the defense should not turn on its failure to cite the decades-old statute,
    which was made part of the SIP, rather than its current statutory home. We
    remand for findings on whether Exxon proved its Act of God defense for the
    relatively small number of violations occurring during Hurricane Ike.
    B.
    The Texas SIP also includes affirmative no-fault defenses to liability for
    specific types of emissions. 40 C.F.R. § 52.2270(c) (incorporating TEX. ADMIN.
    CODE § 101.222). One defense, for instance, applies to “non-excessive upset
    events,” provided the violator can show that it met each of eleven criteria—
    they generally show that the violator was not at fault and that the violation
    was not particularly serious. TEX. ADMIN CODE § 101.222(b).
    Exxon pursued some of these no-fault defenses on remand. In support,
    it submitted 200 paragraphs of proposed findings. Those paragraphs included
    21
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    brief descriptions of 97 emissions events, and references to the reports and trial
    testimony of experts. 6
    The district court ruled that Exxon failed to meet its burden because it
    did not identify evidence establishing it met the relevant criteria for each
    individual emissions event. It characterized Exxon as having “only provided a
    general citation to the testimony and record.” That characterization was not
    unreasonable. The trial testimony Exxon cited did not examine particular
    events; it instead opined that all the criteria were met for each violation, across
    the board. And Exxon did not pinpoint pages of the expert report, instead
    referring to hundreds of pages of reports in their entirety.
    Exxon responded with a Rule 52(b) motion to amend the judgment, to
    which it attached an exhibit purporting to more specifically cite the portions of
    expert reports and testimony pertinent to each of the 97 events. But that
    exhibit just copied and pasted identical references to voluminous expert
    testimony and reports into each entry for each emissions event. Some of that
    evidence had no bearing on the emissions events for which it purportedly
    proved a defense.
    The district court rejected Exxon’s 52(b) motion because the motion did
    not do anything Exxon could not have done in its proposed findings. We affirm
    that rejection for an alternative reason, the same reason we affirm the district
    court’s original rejection of Exxon’s section 101.222 defenses: “Judges are not
    ferrets!” Nicholas Acoustics & Specialty Co. v. H&M Const. Co., 
    695 F.2d 839
    ,
    847 (5th Cir. 1983); see also Chavez v. Sec. Fla. Dep’t of Corrections, 
    647 F.3d 1057
    (11th Cir. 2011) (“[D]istrict court judges are not required to ferret out
    6   Exxon also alluded to the Texas Commission on Environmental Quality’s
    determination that Exxon met the criteria for each event. But the district court found that
    the state’s determination was “not sufficient” to meet Exxon’s burden of proof, a finding
    Exxon does not challenge.
    22
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    delectable facts buried in a massive record.”). We defer to the district court’s
    “broad discretion in managing [its] docket,” Sims v. ANR Freight Sys., Inc., 
    77 F.3d 846
    , 849 (5th Cir. 1996), which permits a district court to refuse to do
    litigants’ work for them.
    IV.
    Lastly, Exxon challenges the penalty the district court imposed.             It
    argues that the district court erred in reconsidering all three factors on which
    the prior panel remanded—economic benefit, duration, and seriousness—as
    well as in declining to consider Exxon’s argument on “such other factors as
    justice may require.”
    Because we remand for the district court to determine the number of
    violations for which Plaintiffs have standing, as well as whether Exxon proved
    its Act of God defense for any violations, the court will also have to reassess
    the penalties.   It thus does not make sense to address Exxon’s penalty
    arguments now. It is worth noting that however many violations the court
    finds Plaintiffs have standing to pursue, the overall number of violations at the
    Baytown complex remains relevant as part of “the violator’s full compliance
    history” that a court considers in assessing the amount of each penalty within
    the statutory range. 42 U.S.C. § 7413(e)(1). We express no opinion about the
    extent to which a reduction in the number of violations should affect, if at all,
    the total penalty imposed.
    *     *       *
    We VACATE the district court’s judgment and REMAND for the limited
    purpose of allowing the district court to make additional findings on
    traceability and the Act of God defense. The case will then be returned to this
    panel.
    23
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    No. 17-20545
    ANDREW S. OLDHAM, Circuit Judge, concurring in part, dissenting in part,
    and concurring in the judgment:
    I agree that the district court’s judgment must be vacated, and that we
    must remand the case for additional proceedings. I write separately to
    emphasize that our precedents in this area are a mess. The majority admirably
    attempts to make sense of them. But I’m afraid that task is too big for any
    panel. Eventually, our en banc court should clean up this confusion.
    I.
    The mess started in 1990. That’s when the Third Circuit created a three-
    part standard for determining traceability in citizen suits under the Clean
    Water Act. See Pub. Interest Research Grp. of N.J., Inc. v. Powell Duffryn
    Terminals Inc., 
    913 F.2d 64
    , 72 (3d Cir. 1990). Under Powell Duffryn, the
    plaintiff must show:
    a defendant has 1) discharged some pollutant in concentrations
    greater than allowed by its permit 2) into a waterway in which the
    plaintiffs have an interest that is or may be adversely affected by
    the pollutant and that 3) this pollutant causes or contributes to the
    kinds of injuries alleged by the plaintiffs.
    Ibid. It’s not obvious
    how the Third Circuit devised that standard because the
    court cited nothing at all to support it. See
    ibid. For better or
    worse, we relied on Powell Duffryn’s ipse dixit in Sierra
    Club, Lone Star Chapter v. Cedar Point Oil Co. Inc., 
    73 F.3d 546
    , 557–58 (5th
    Cir. 1996). Oddly, our Cedar Point decision did not even cite—much less
    analyze—the Supreme Court’s canonical decision on Article III standing in
    Lujan v. Defenders of Wildlife, 
    504 U.S. 555
    (1992). Much of Cedar Point
    contravenes Lujan and its progeny. Compare, e.g., Cedar 
    Point, 73 F.3d at 556
    –
    57 (embracing the plaintiffs’ theory of “threatened injury” without discussing
    the requirement that it be “concrete,” “imminent,” and “certainly impending”),
    24
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    with 
    Lujan, 504 U.S. at 567
    nn.2–3 (requiring plaintiffs to establish a “concrete
    injury” that was “imminent” and “certainly impending”), and Clapper v.
    Amnesty Int’l USA, 
    568 U.S. 398
    , 409 (2013) (similar). But even when Cedar
    Point relied on the Third Circuit’s standard rather than Supreme Court
    precedent, it recognized that “a literal reading of Powell Duffryn may produce
    results incongruous with our usual understanding of the Article III standing
    
    requirements.” 73 F.3d at 558
    n.24. Therefore, Cedar Point utilized a more
    amorphous approach to Article III standing that turned on things like whether
    the relevant waterway is “large.”
    Ibid. The third prong
    of the Powell Duffryn-Cedar Point standard is the most
    pernicious. It says that the plaintiff need only prove that the relevant pollutant
    “causes or contributes to the kinds of injuries alleged by the plaintiffs.” Powell
    
    Duffryn, 913 F.3d at 72
    (emphasis added); see also Cedar 
    Point, 73 F.3d at 557
    (adopting this ipse dixit). That eliminates traceability altogether. Think about
    it. Would we ever say: my house burned down; arsonists burn down houses;
    therefore, an arsonist burned down my house? Of course not. My house could
    have burned down because the wiring was faulty, I left the stove on, my dog
    tipped over a candle, a bolt of lightning struck the roof, a litterbug’s cigarette
    started a wildfire, or myriad other potential causes. Therefore, we would
    require some sort of allegation of but-for causation linking the fire to the
    arsonist. But Powell Duffryn-Cedar Point eliminates that. It’s enough to say
    that someone has asthma; pollutant X can cause asthma; therefore, pollutant
    X caused someone’s asthma. Cum hoc ergo propter hoc.
    Rather than recognize the fallacies inherent in Powell Duffryn-Cedar
    Point, some courts have extended its illogic. For example, the Fourth Circuit
    relied on both cases to hold that the “fairly traceable” standard is “not
    equivalent to a requirement of tort causation.” Friends of the Earth, Inc. v.
    25
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    No. 17-20545
    Gaston Copper Recycling Corp., 
    204 F.3d 149
    , 161 (4th Cir. 2000) (quotation
    omitted). It is unclear what that sentence is supposed to mean. I suppose it
    could mean that a plaintiff can establish traceability without establishing the
    tort requirement of proximate causation. That’s true. See, e.g., Lexmark Int’l,
    Inc. v. Static Control Components, Inc., 
    572 U.S. 118
    , 134 n.6 (2014)
    (“Proximate causation is not a requirement of Article III standing, which
    requires only that the plaintiff ’s injury be fairly traceable to the defendant’s
    conduct.”).
    But some of our sister circuits also have eliminated but-for causation.
    For example, the Sixth Circuit said: “In the nebulous land of ‘fairly traceable,’
    where causation means more than speculative but less than but-for, the
    allegation that a defendant’s conduct was a motivating factor in the third
    party’s injurious actions satisfies the requisite standard.” Parsons v. U.S. Dep’t
    of Justice, 
    801 F.3d 701
    , 714 (6th Cir. 2015). That’s much like Powell Duffryn,
    which distinguished the “requirement of tort causation” from “scientific
    
    certainty.” 913 F.2d at 72
    . And much like Powell Duffryn, Parsons cited exactly
    nothing to support its ipse dixit. Also much like Powell Duffryn, Parsons makes
    little sense. Asking whether a particular allegation is “more than speculative
    but less than but-for,” 
    Parsons, 801 F.3d at 714
    , is like asking whether a
    particular product is more than a preponderance but less than defective. The
    first is the plaintiff ’s burden; the second is the actual fact that the plaintiff
    must prove.
    Our circuit already has recognized the constitutional problems posed by
    the ever-growing mountain of ipse dixits and logical fallacies that comprise the
    Powell Duffryn-Cedar Point-Gaston Copper-Parsons line of cases. Cedar Point
    itself recognized its approach could generate “results [that are] incongruous
    with our usual understanding of the Article III standing requirements.” 73
    26
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    F.3d at 558 n.24. And we’ve reiterated that concern in other cases. For
    example, we’ve held that plaintiffs could not establish traceability by showing
    that they “use[d] a body of water located three tributaries and 18 miles
    ‘downstream’ from” a polluting refinery. Friends of the Earth, Inc. v. Crown
    Cent. Petroleum Corp., 
    95 F.3d 358
    , 361 (5th Cir. 1996); see also
    ibid. (“We are persuaded
    that this case presents a situation in which Powell Duffryn’s focus
    on the plaintiff ’s interest in the ‘waterway’ into which unlawful pollution flows
    passes Article III bounds.”). We’ve also held that the Powell Duffryn-Cedar
    Point-Gaston Copper-Parsons standard must be limited to “a case involving a
    small body of water, close proximity, well-understood water currents, and
    persistent discharges.” Ctr. for Biological Diversity v. EPA, 
    937 F.3d 533
    , 545
    (5th Cir. 2019). And although we have at least one Clean Air Act case that
    describes Cedar Point as “the law in this Circuit,” Texans United for a Safe
    Economy Education Fund v. Crown Central Petroleum Corp., 
    207 F.3d 789
    , 793
    (5th Cir. 2000), apparently we’ve never applied the Powell Duffryn-Cedar
    Point-Gaston Copper-Parsons traceability standard to air pollution. (Indeed,
    it’s quite awkward to do so because that standard turns on whether the
    relevant waterway is “large”—an adjective that makes no sense as applied to
    air.)
    II.
    Today’s panel confronted the unenviable task of making sense of the
    Powell Duffryn-Cedar Point-Gaston Copper-Parsons line of cases; squaring it
    with Crown Central, Center for Biological Diversity, and Texans United; and
    then attempting to reconcile the whole mess with Article III of the
    Constitution. I admire the majority’s efforts to square the circle. In my view,
    however, it’s impossible.
    27
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    A.
    Let’s start with the common ground between the majority and me. We
    all agree that the Powell Duffryn-Cedar Point-Gaston Copper-Parsons line of
    cases allows for something less than “tort-like . . . proximate cause” to establish
    traceability. See ante, at 13 & n.4. Of course, that does not excuse the plaintiffs
    from proving but-for causation.
    After all, the Supreme Court long has held that a plaintiff ’s injuries are
    not fairly traceable without but-for causation. See, e.g., Allen v. Wright, 
    468 U.S. 737
    , 758 (1984) (holding that plaintiffs failed to establish traceability
    because “it is entirely speculative . . . whether withdrawal of a tax exemption
    from any particular school would lead the school to change its policies”—that
    is, whether the tax exemption is the but-for cause of plaintiffs’ injuries); Duke
    Power Co. v. Carolina Envtl. Study Grp., Inc., 
    438 U.S. 59
    , 74–78 (1978)
    (holding that “a ‘but for’ causal connection” between plaintiff ’s injury and
    defendant’s act sufficed for traceability); Warth v. Seldin, 
    422 U.S. 490
    , 505
    (1975) (holding that Article III requires plaintiffs “to establish that, in fact, the
    asserted injury was the consequence of the defendants’ actions”); see also
    Richard H. Fallon, Jr., Of Justiciability, Remedies, and Public Law Litigation:
    Notes on the Jurisprudence of Lyons, 59 N.Y.U. L. REV. 1, 17 n.91 (1984)
    (observing that the Supreme Court’s causation analysis “replicate[s] the tort
    law concept of ‘cause in fact’ or ‘but for’ causation”). As have some of our sister
    circuits. See, e.g., Cmty. Nutrition Inst. v. Block, 
    698 F.2d 1239
    , 1247 (D.C. Cir.
    1983) (“A plaintiff need only make a reasonable showing that ‘but for’
    defendant’s action the alleged injury would not have occurred.”); cf. Honeywell
    Int’l, Inc. v. EPA, 
    705 F.3d 470
    , 472 (D.C. Cir. 2013) (Kavanaugh, J.)
    (“Honeywell’s injury is fairly traceable to the now-permanent 2008
    interpollutant transfers by Arkema and Solvay because the injury would not
    28
    Case: 17-20545     Document: 00515508326      Page: 29   Date Filed: 07/29/2020
    No. 17-20545
    have occurred but for the 2008 transfers.”). Even the Third Circuit—which
    gave us the unfortunate Powell Duffryn standard—says the traceability
    “requirement is akin to ‘but for’ causation in tort and may be satisfied even
    where the conduct in question might not have been a proximate cause of the
    harm.” Finkelman v. Nat’l Football League, 
    810 F.3d 187
    , 193 (3d Cir. 2016)
    (quotation omitted).
    Friends of the Earth, Inc. v. Laidlaw Environmental Services (TOC), Inc.,
    
    528 U.S. 167
    (2000), obviously says nothing to the contrary. The Court in that
    case did not say anything at all about but-for causation. And it certainly didn’t
    purport to overrule any of its traceability cases that applied but-for causation—
    like Allen v. Wright or Duke Power. Reasonable people might disagree—as the
    Justices did in Laidlaw—over whether Friends of the Earth proffered
    sufficient evidence of traceability. See ante, at 13 n.4 (summarizing the
    disagreement). But that doesn’t mean Laidlaw announced sub silentio a new
    legal standard. See Steel Co. v. Citizens for a Better Env’t, 
    523 U.S. 83
    , 91 (1998)
    (“We have often said that drive-by jurisdictional rulings of this sort . . . have
    no precedential effect.”). So the but-for causation requirement remains part of
    the irreducible constitutional minimum for Article III traceability.
    B.
    So where do I diverge from the majority? First, it’s not obvious to me that
    the Powell Duffryn-Cedar Point-Gaston Copper-Parsons doctrine should apply
    at all. As noted above, Cedar Point turns on whether a particular body of water
    is 
    “large.” 73 F.3d at 558
    n.24. Whatever sense that might make in water-
    pollution cases, it makes little or none in air-pollution cases.
    Second, even if the Powell Duffryn-Cedar Point-Gaston Copper-Parsons
    doctrine applies, the en banc court should revisit it. The district court already
    has conducted two trials in this case. We are remanding for a third. And there’s
    29
    Case: 17-20545     Document: 00515508326       Page: 30   Date Filed: 07/29/2020
    No. 17-20545
    no guarantee that the third time will be a charm. One problem with an
    inherently indeterminate doctrine—like Powell Duffryn and its progeny—is
    that it cannot generate predictable results the first time around.
    To illustrate, consider a hypothetical plaintiff Bob who lives in Baytown.
    Bob has asthma—that is, an injury. The question is whether his asthma injury
    is traceable to Exxon’s illegal emissions. From January 1 through January 10,
    Bob was visiting his sister in France. Meanwhile:
    • On January 2, Exxon emitted pollutants that “could have reached
    beyond the Exxon complex into the offsite areas of Baytown where
    Plaintiffs’ members lived and recreated.” Ante, at 16.
    • On January 5, Exxon released “pollutants in excess of nonzero
    emissions limits” or that constituted “a ‘reportable quantity’ under
    state regulations.” Ante, at 16.
    • On January 8, Exxon emitted pollutants “that could have caused
    or contributed to flaring, smoke, or haze, even if the emission was
    of a small magnitude.” Ante, at 17.
    Can Bob recover for these emissions? Obviously, our decision today doesn’t say.
    And I don’t know the answer under the Powell Duffryn-Cedar Point-Gaston
    Copper-Parsons line of cases. Nor do I envy the district court, which will have
    to hazard a guess. The only thing I know for sure is that Article III’s
    traceability requirement bars Bob from recovering a penny.
    *     *      *
    The Powell Duffryn framework cannot be squared with Article III’s
    traceability requirement. Cedar Point’s half-hearted adoption of Powell
    Duffryn fares little better. Although in many cases we may be able to
    distinguish and disapply Cedar Point, our ability to faithfully apply Article III
    should not turn on whether a lawsuit involves a lake, a Gulf, or a smokestack.
    At some point, our en banc court should bring our precedent in line with the
    Constitution.
    30
    

Document Info

Docket Number: 17-20545

Filed Date: 7/30/2020

Precedential Status: Precedential

Modified Date: 7/30/2020

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Warth v. Seldin , 95 S. Ct. 2197 ( 1975 )

Massachusetts v. Environmental Protection Agency , 127 S. Ct. 1438 ( 2007 )

Beverly Cole Anita S. Perkins Jewell P. Lowe v. General ... , 484 F.3d 717 ( 2007 )

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Duke Power Co. v. Carolina Environmental Study Group, Inc. , 98 S. Ct. 2620 ( 1978 )

Lujan v. Defenders of Wildlife , 112 S. Ct. 2130 ( 1992 )

Steel Co. v. Citizens for a Better Environment , 118 S. Ct. 1003 ( 1998 )

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Chavez v. Secretary Florida Department of Corrections , 647 F.3d 1057 ( 2011 )

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