Air

"Major U.S. cities may be leaking far more methane into the atmosphere than government estimates suggest."

"The Environmental Protection Agency’s inspector general will investigate allegations that William L. Wehrum, the agency’s former air quality chief, violated ethics rules when he met with former clients from his days as a lawyer and lobbyist for the oil, gas and coal industries."

"The Environmental Protection Agency (EPA) pointed to a new study released Wednesday to emphasize what it characterized as the Trump administration’s achievements in decreasing air pollution."

"The number of unhealthy air days in major cities across the United States has risen sharply over the last two years, even as emissions of key pollutants continue to slip, according to data released by the Environmental Protection Agency on Wednesday."

"Iron particles released by industrial activities are falling into the seas in greater quantities than previously thought".

"Environmental groups say a new rule from the agency eliminates one of the only tools providing communities near CAFOs with information about toxic substances in the air."

"In rolling out the final version of its contested sequel to the Obama-era Clean Power Plan last month, EPA left behind a big chunk of unfinished business."

"Ten U.S. states and Washington, D.C. sued the Environmental Protection Agency to begin working on rules to tighten oversight of asbestos, and reduce the health risks that the substance poses to the public."

"Those thin white clouds that jet engines draw across the sky are leaving their mark on the climate. A new study warns that the global heat-trapping effect of contrail clouds will triple by 2050 unless airlines and airplane builders dramatically reduce emissions or air traffic patterns change."