Major Climate Change Rules the Trump Administration Is Reversing
. Officials at the White House, the Environmental Protection Agency and other agencies have called the regulations burdensome to the fossil fuel industry and other businesses. Half of those environmental rollback attempts, like the new methane reversal, will undercut efforts by previous administrations to reduce emissions and fight climate change. Many of these efforts have been challenged in the courts; whether the administration will succeed in achieving all of its goals is far from certain. Here are some of the most significant climate-related reversals: One critical effort by the Trump administration was . The process of withdrawing cannot be completed until 2020, but the move sent a strong signal to the world that Mr. Trump, who has at climate science, would be taking action at many levels of government to reverse climate policies created during the Obama administration. leaks from oil and gas wells is only one administration effort on behalf of fossil fuel producers. Burning natural gas produces half of the carbon dioxide that burning coal does, but methane, the chief component of natural gas, has a powerful effect on climate change. Though it does not persist in the atmosphere as long as carbon dioxide does, it has 80 times the heat-trapping power of carbon dioxide during 20 years in the atmosphere. The Obama administration had passed many rules to reduce methane leaks. An early effort by the E.P.A. under the former administrator Scott Pruitt to reverse Obama-era rules on leaks from new oil and gas wells . Transportation is the United States biggest source of greenhouse gas emissions, and fuel efficiency standards were a signature Obama administration proposal for reducing those emissions, as well as other air pollution created by vehicles. Earlier this month, the Trump administration . The proposal puts the administration on a collision course with California, which sets its own stringent tailpipe standards and even . The Clean Power Plan, President Obamas effort to reduce greenhouse gas emissions by regulating carbon dioxide from existing fossil-fuel-powered electricity plants, was a big target for Mr. Trump, who campaigned in coal country on a promise to revive the ailing industry. He . The planned substitute, unveiled in June as the , is the administrations most sweeping plan to extend the lives of coal-burning plants and shore up the mining industry an industry . In December 2017, . The move shrank Bears Ears National Monument by 85 percent, and reduced Grand Staircase-Escalante by about half. The two monuments had received protection in the Obama and Clinton administrations. Subsequent reporting on the Bears Ears decision showed that . Similarly, the Trump administration is . The Trump administration including the California coast, the Arctic and the Eastern Seaboard, as part of its energy dominance agenda. The decision reversed an Obama administration ban. It also put in place after the Deepwater Horizon spill. The administration , however, after . The fossil fuel industry and other businesses have long bristled at the Endangered Species Act, which can restrict their ability to mine, drill and conduct other activity where threatened flora and fauna can be found. Earlier this month, in ways that will make it harder to protect wildlife from climate change and other threats. The changes would make it easier to remove species from the endangered list, would allow a protection decision to be influenced by economic assessments, and make it more difficult to factor in effects of climate change that may be decades away. Even before that, however, the Interior Department opened nine million acres of Western land to oil and gas drilling by . For more news on climate and the environment, . is part of the climate team. Since joining The Times in 2000, he has covered science, law, technology, the space program and more, and has written for almost every section.