California, New York and 11 other states have filed an amicus brief supporting a case in which the state of Rhode Island seeks to hold the oil industry liable for climate change.

In a filing Thursday before the U.S. Court of Appeals for the First Circuit, the states argued to uphold a July 22 ruling remanding Rhode Island’s case to state court, where its lawyers prefer to pursue their claims that 21 oil companies contributed to climate change in violation of public nuisance law.