The Supreme Court heard oral arguments in Suncor Energy v. County Commissioners of Boulder County, a case that could shape the future of climate litigation. The central issue is whether Boulder can proceed with its state court case against Exxon Mobil and Suncor Energy, accusing them of misleading the public about their products’ role in climate change.
This case is part of a broader trend. While none have gone to trial, the Supreme Court’s decision to review Boulder’s case could set a precedent for all of them.
The Arguments Presented
The oil companies argued that Boulder’s lawsuit is essentially a form of regulation, which should be left to federal authorities. They claimed that allowing such suits could lead to bankruptcy and that the suit may evade existing court precedents on emissions.
Boulder’s counsel countered that a damages award doesn’t prohibit anything but requires defendants to internalize a portion of the cost of their activities. However, this response invites a counterargument: damages can still influence behavior, effectively acting as regulation.
The justices’ questions revealed differing views. Justice Kagan challenged the companies’ broad constitutional arguments, while Justice Kavanaugh emphasized that interstate pollution is a matter for federal law unless Congress explicitly preserves state law.
Key Justices and Their Stances
Justices Sotomayor and Jackson appeared firmly in Boulder’s corner. Sotomayor questioned the companies’ jurisdiction and compared the case to Commonwealth Edison v. Montana, which upheld a state coal tax despite federal law.
Justice Kavanaugh strongly supported the oil companies, arguing that interstate pollution is a federal matter unless Congress preserves state law. He also questioned why a tort suit should be treated differently from a state statute with the same effect.
Justice Barrett leaned toward the companies but focused on a narrower route. She rejected their constitutional theory but agreed with Kavanaugh’s framing, suggesting that state authority is limited by federal law.
Justice Kagan seemed sympathetic to Boulder’s deception claims but expressed skepticism about claims based on production and emissions. Her analogy to tobacco and opioid litigation highlighted the similarities in these cases.
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Justice Gorsuch appeared skeptical of the companies’ theory, particularly their argument that no one could sue if both federal and state laws were barred. His questions exposed gaps in the companies’ logic.
Chief Justice Roberts seemed skeptical of both sides, pressing the companies on ordinary tort hypotheticals while also questioning Boulder’s counsel about the potential for widespread litigation.
The outcome remains uncertain, but the justices’ questions suggest a narrower ruling in favor of the companies is possible. The case could also result in a split decision, with deception claims surviving while others do not. A 4-4 tie or dismissal for lack of jurisdiction are also on the table.
One critical detail emerged during the arguments: Colorado, home to Suncor’s refineries, may itself be a source state. This could significantly impact the case, as Ouellette preserves source-state law.
Justice Kavanaugh strongly favored the oil companies, citing precedents like Milwaukee I, Milwaukee II, and International Paper Co. v. Ouellette to argue that interstate pollution is a federal matter. He also questioned the distinction between tort suits and state statutes with similar effects.
She emphasized the limited nature of state authority and raised concerns about the potential for widespread litigation.
Historical Precedents on Tort Verdicts and Federal Regulation
The Supreme Court has consistently acknowledged that tort verdicts can influence behavior but has never used this as a reason to eliminate state remedies preserved by Congress. Cases involving nuclear power, tobacco, and pesticides demonstrate that federal regulation and state compensation can coexist. For instance, Silkwood v. Kerr-McGee (1984) allowed punitive damages in a field exclusively regulated by the federal government, reflecting Congress’s willingness to accept tension between federal safety rules and state compensation. Similarly, Goodyear Atomic Corp. v. Miller (1988) upheld an enhanced state workers’ compensation award for a safety violation at a federal nuclear facility, treating its regulatory effect as acceptable.
In Bates v. Dow Agrosciences (2005), the Court rejected the idea that a tort verdict’s influence on behavior constitutes a regulatory requirement, distinguishing it from statutory mandates. This aligns with Justice Barrett’s observation that tort law regulates by addressing actual harms, not by dictating specific actions. These precedents suggest that the regulatory impact of tort remedies alone is not a basis for preemption, even in areas with federal oversight.