The Trump administration on Tuesday proposed weakening requirements for testing and repairing methane leaks in drilling operations, among other measures, in a step toward rolling back an Obama-era policy to combat climate change. The Environmental Protection Agency (EPA) said the changes will save the industry $75 million a year in regulatory costs between 2019 and 2025, while increasing methane emissions. Methane, the primary component of natural gas, leaks from oil and gas wells during drilling. It accounts for 10 percent ofU.S. greenhouse gas emissions and has more than 80 times the heat-trapping potential of carbon dioxide in the first 20 years after it escapes into the atmosphere. The oil and gas sector is the largest single source of U.S. […]