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More than 90 green groups across the U.S. are calling on the Environmental Protection Agency and Interior Department to regulate methane emissions from oil and gas industry operations.

“EPA needs to take immediate steps to produce regulations to directly reduce methane pollution from new and existing equipment from this industry,” the groups wrote in a letter to Interior Secretary Sally Jewell and EPA chief Gina McCarthy on Thursday.

The groups include the Clean Air Task Force, Center for Biological Diversity, and National Wildlife Federation.