"Capping more than three years of study, the O'Malley administration declared Tuesday that hydraulic fracturing for natural gas can be done safely in Western Maryland, but only after regulations are tightened to reduce air and water pollution and protect residents from well contamination, noise and other disruptions associated with an anticipated drilling boom."

"The U.S. Supreme Court on Tuesday agreed to weigh a challenge by industry groups and some states to an Obama administration regulation intended to limit emissions of mercury and other hazardous pollutants mainly from coal-fired power plants."

"The Obama administration is expected to release on Wednesday a contentious and long-delayed environmental regulation to curb emissions of ozone, a smog-causing pollutant linked to asthma, heart disease and premature death."

"Macklemore rolls up in his signature old black Cadillac, sporting black Ray-Bans and big boots."

"The Environmental Protection Agency on Monday rejected parts of a key Texas clean-air plan, setting up a conflict with deep implications both for the state’s electricity mix and air quality across much of the country."

"No one talks much about toxic Superfund sites anymore. But 49 million Americans live close to one."

"TOLEDO, Ohio — The U.S. Environmental Protection Agency plans to come out with new guidelines that will give cities and water treatment plants a blueprint for dealing with the type of algae-borne toxin that contaminated the drinking water in Ohio’s fourth-largest city, a federal official said Wednesday."

"Levels of a type of pesticide commonly used in backyard gardens and on farms have increased in urban and rural watersheds in California, the state said in a report released Wednesday."

"As Canadian lakes have become more acidic, they've become increasingly dominated by jelly-like plankton that are throwing things out of whack, new research suggests. And these gummy invaders aren't going anywhere. Soon, they could even disrupt the country's water supply."