Air

"Maryland’s largest health systems are under pressure to cut their dealings with an incinerator that has a history of environmental violations."

"The amount of air pollution coming from Canada’s oil sands extraction is between 20 to 64 times higher than industry-reported figures, according to a groundbreaking study. Researchers found that the total amount of air pollution released from the oil sands is equal to all other human-caused air pollution sources in Canada combined."

"The Interior Department issued plans Thursday to throttle future coal mining in the nation’s largest coal-producing region." "The Bureau of Land Management proposal would end new federal coal leases in the Powder River Basin in Montana and Wyoming, which dominates U.S. coal production."

"The U.S. government has a specialized plane loaded with advanced sensors that officials brag is always ready to deploy within an hour of any kind of chemical disaster. But the plane didn’t fly over eastern Ohio until four days after the disastrous Norfolk Southern derailment there last year."

"Fifty countries are meeting in France on Tuesday to discuss the lack of access to clean cooking methods worldwide which causes millions of deaths every year and fuels global warming."

"Officials in Alameda, Calif., have told scientists to stop testing a device that might one day be used to artificially cool the planet by making clouds brighter, reflecting planet-warming sunlight back into space."