"A dozen years ago, neighborhoods around Riverside, an hour’s drive east of Los Angeles, had the nation’s worst soot: Every three days, on average, the air was declared unhealthful, and people were breathing twice as many microscopic particles as deemed safe."

"ST. LOUIS — A national environmental group has made good on its promise to sue a St. Louis-based utility regarding what it calls thousands of violations of federal clean air laws."

"One of the nation’s biggest coal companies will pay a record civil penalty and will spend tens of millions of dollars to clean up water flowing from mines in five states, the Environmental Protection Agency and the Justice Department announced on Wednesday."

"Since losing a $19 billion judgment in an Ecuadorean court three years ago, Chevron has drawn the condemnation of human rights and environmental activists by refusing to pay anything in fines or accept blame for polluting the Ecuadorean rain forest."

"Already targeted as a source of lung-damaging air pollution, a company that has been piling petroleum coke on Chicago's Southeast Side now faces new accusations that it illegally allowed contaminated runoff to spill into the Calumet River."

"RALEIGH, N.C. — Last June, state employees in charge of stopping water pollution were given updated marching orders on behalf of North Carolina’s new Republican governor and conservative lawmakers."

"The Obama administration on Monday announced new fuel and automobile rules to cut soot, smog and toxic emissions, which it says will reduce asthma and heart attacks in the United States."

"North Carolina regulators have cited five more Duke Energy power plants for lacking required storm water permits after a massive spill at one of the company’s coal ash dumps coated 70 miles of the Dan River in toxic sludge."

"The state department of environment and natural resources announced Monday that Charlotte-based Duke had been issued formal notices of violation for not having the needed permits, which are required to legally discharge rainwater draining from its plants into public waterways.

"CHARLESTON, W.Va. -- West Virginia inspectors have discovered 600 more above-ground chemical storage tanks located near public drinking-water supplies, pushing their current inventory to more than 1,600 such tanks, according to data made public Thursday."

"A federal judge in Waco has ruled in favor of power generator Luminant against claims from the Sierra Club it had broken state and federal air pollution laws."