A coalition of 20 states and four municipalities sued the Environmental Protection Agency (EPA) on Monday over its rollback of methane emissions standards for oil and gas production. 

Last month, the EPA formally rescinded Obama-era standards that regulate methane emissions from oil and gas production, processing, transmission and storage. It also rolled back requirements for detecting and repairing leaks.

The agency said that combined, its actions would increase the emissions of methane, which is 25 times more powerful than carbon dioxide in trapping heat, by 850,000 tons over 10 years. 

In announcing their lawsuit on Monday, the states and cities argued that the standards rollback would accelerate the impacts of climate change and harm public health. 

“The West is on fire, the South floods, the Midwest gets ripped apart by super-tornadoes, and the East prepares for calamitous hurricanes. The Trump Administration ignores the dire reality of the climate crisis at our peril,” said California Attorney General Xavier BecerraXavier BecerraInvestigation underway after bags of mail found dumped in Los Angeles-area parking lot Major drilling projects among dozens fast-tracked after Trump order OVERNIGHT ENERGY: 21 states sue White House over rollback of bedrock environmental law | Administration faces rough week in court | Trump hits Biden on climate at convention MORE (D), who led the coalition, in a statement. 

“We won’t let the EPA gut critical pollution emissions standards and allow super pollutants like methane to destroy our atmosphere,” he added. 

An EPA spokesperson declined to comment on the lawsuit, saying the agency doesn’t comment on pending litigation. 

In rescinding the standards last month, the EPA argued that they were redundant, and overlapped significantly with regulations for chemicals known as volatile organic compounds (VOCs).

This determination differed from an Obama administration analysis in 2016, which found that while standards for VOCs also “incidentally” reduce methane emissions, a methane-specific standard would “achieve meaningful [greenhouse gas] reductions and will be an important step towards mitigating the impact of [greenhouse gas] emissions on climate change.”

The EPA also said that its changes would reduce regulatory burdens on industry, particularly small producers. Major oil companies have come out against the changes, saying that regulating methane is important for preventing leaks and protecting the environment. 

Methane is the primary component of natural gas and is leaked into the atmosphere during gas production, transportation and storage. Natural gas and petroleum systems are the second-largest source of methane emissions in the country, behind only agriculture



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