Maryland’s Supreme Court Rejects Baltimore’s Climate Liability Lawsuit, Narrowing City Options for Cost Recovery Efforts

A high-stakes legal strategy meets a decisive roadblock

Maryland’s highest court has rejected Baltimore’s attempt to pursue a sweeping climate-related damages case against major fossil-fuel companies, a ruling that ends—at least for now—the city’s bid to shift some of the costs of climate impacts through state-law claims.

The dispute stems from a lawsuit Baltimore filed in 2018 against more than two dozen energy companies and industry-linked entities. The city sought monetary relief and other remedies tied to alleged local harms it associated with climate change, including flooding and sea-level rise. Baltimore’s complaint relied on multiple Maryland-law theories typically used in product, consumer, and nuisance litigation.

How the case reached the state’s top court

The case has traveled a long procedural path. Early phases were dominated by fights over where it should be heard—state or federal court—before the merits of Baltimore’s claims were addressed. Ultimately, the litigation returned to Maryland courts, where a Baltimore City Circuit Court judge dismissed the complaint in July 2024.

That dismissal rested on the conclusion that Baltimore’s claims—though pleaded under state law—attempted to impose liability for injuries tied to global greenhouse-gas emissions and the marketing and sale of fossil-fuel products. The trial court found that such issues are governed by federal law and federal regulatory authority, leaving no room for the requested state-law remedies.

What the Supreme Court’s decision changes

By striking down Baltimore’s suit at the state’s highest judicial level, the court’s decision solidifies a major limitation on how Maryland local governments can use tort and consumer-protection law to pursue climate-cost recovery against energy producers.

While the full impact will turn on the decision’s legal reasoning and scope, the practical effect is immediate: Baltimore cannot proceed to discovery in this case, cannot test its allegations through document production and depositions, and cannot take the claims to a Maryland trial under the dismissed theories.

Related Maryland cases and the broader national context

Baltimore’s lawsuit is part of a wider wave of cases brought by states and municipalities across the country seeking to assign financial responsibility for climate impacts to oil and gas companies. In Maryland, similar suits filed by Annapolis and Anne Arundel County were also dismissed at the trial level, setting up parallel appeals and placing added statewide attention on whether such claims can survive when framed as deception, failure-to-warn, nuisance, or product-liability disputes.

Key elements at the center of the litigation

• Baltimore filed the case in July 2018 against major fossil-fuel companies and related entities.
• The city pleaded multiple state-law theories, including nuisance-style claims and consumer-related allegations.
• A Baltimore City Circuit Court judge dismissed the case on July 10, 2024.
• Maryland’s top court has now rejected the effort to revive the lawsuit.

The ruling closes a central courtroom avenue Baltimore pursued to recover climate-associated costs through state-law liability theories.

With the state-court path narrowed, the decision refocuses attention on other climate policy tools—regulatory programs, infrastructure planning, and legislative approaches—that do not depend on proving liability in a damages action against private companies.