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On January 9, the City of New York opened a new legal front against energy companies, suing Exxon, BP, Chevron, Royal Dutch Shell, and ConocoPhillips for the cost of defending the city from the effects of climate change – such as rising sea levels and increased flooding – that is allegedly caused by the carbon emissions attributable to these defendants. Much like the suits filed last year in California state court by the counties of San Mateo, Marin and Santa Cruz and the cities of San Francisco, Oakland, Imperial Beach and Santa Cruz, New York's complaint alleges that the defendants are responsible for the costs of constructing preventative infrastructure because the defendants promoted, marketed and sold fossil fuel products, while knowing and failing to disclose that fossil fuel emissions cause climate change.
In conjunction with its complaint, New York announced that its pension funds would divest all holdings in fossil fuel businesses over the next several years.
Like the complaints filed in California, New York's complaint alleges that the defendants are liable under nuisance and trespass theories of liability because they are responsible for a significant portion of global emissions over the course of many years. New York alleges that the five defendants are responsible for 11% of all carbon and methane emissions since the beginning of the Industrial Revolution. Also like the complaints in California, the New York complaint alleges that the defendants have continued to market, promote and sell fossil fuels despite their own internal scientific studies – dating back as far as the 1970s – concluding that fossil fuel emissions cause climate change.
New York's complaint seeks unspecified damages, but alleges that the cost of flood and storm surge resiliency projects may run to "many billions of dollars" over the coming years.
As noted in our previous alert about the California lawsuits, the defendants have strong arguments to dismiss the complaint as a matter of law, before either side must disclose documents or give testimony. These defenses, which are described in more detail in our previous alert, include:
Notably, New York filed its complaint in federal court, rather than in state court as the California municipalities did. While defendants in the California cases have moved to remove the cases to federal court, which will delay their adjudication of the merits, the New York complaint may move directly to the motion to dismiss phase. New York thus may be the first jurisdiction where these claims are tested on the merits, and we predict, will be dismissed on the merits.
The contents of this publication are for reference purposes only and may not be current as at the date of accessing this publication. They do not constitute legal advice and should not be relied upon as such. Specific legal advice about your specific circumstances should always be sought separately before taking any action based on this publication.
© Herbert Smith Freehills 2025
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