"A new Harvard University study for the first time links hospitalizations for common blood, skin and kidney ailments to short-term exposure to fine particulate matter from fossil fuel combustion and wildfires."

"A mandatory evacuation order issued after a series of explosions at a Texas chemical plant has been lifted, a county official said Friday morning."

"Vermont is turning to its most abundant resource to help meet its renewable energy targets. But the bar for ‘carbon neutral’ may be higher than even skeptics think."

"SACRAMENTO, Calif. — A coalition of 11 environmental groups has sued the U.S. Environmental Protection Agency for revoking California’s authority to set tougher emission standards for cars and trucks than the federal government.

The federal government has allowed California to set its own emission standards since the 1970s because the state has the most cars on the road and struggles to meet air quality standards. Thirteen other states plus the District of Columbia follow California’s rules.

"US air pollution rules could be hugely insufficient in preventing deaths, experts are concluding from a new study of the likely causes of death of 4.5 million veterans."

"California on Friday broadened its effort to block the Trump administration from ending its authority to set greenhouse gas emission and fuel economy standards for cars and trucks."

"Environmental groups had been waiting nearly three years for the U.S. Environmental Protection Agency to comply with a federal judge’s orders to update Clean Air Act rules governing emissions of various toxic chemicals."