Pollution

"In Texas, there were more than 2,700 spills at oil and gas sites last year. But the state tracked only about half of those."

"The auto industry will need to step up introduction of fuel-saving technology to help the U.S. meet aggressive goals to combat climate change despite manufacturers’ requests for relief from existing rules, the Environmental Protection Agency’s top transportation official said."

"Rio de Janeiro's air is dirtier and deadlier than portrayed by authorities and the Olympics' promised legacy of cleaner winds has not remotely been met, an analysis of government data and Reuters' own testing found."

"Beneath the streets of Boston, two robots named Mario and Luigi inspect the flow of human waste, collecting data on city residents."

"The EPA has already spent $100 million to remediate decades of mining."

"A major part of Rio’s winning Olympic bid was a plan to capture and treat 80 percent of the sewage that flows into Guanabara Bay, something organizers now admit will not happen — certainly not by August, if ever."

"A federal judge in Virginia could soon decide a potentially landmark case determining whether power plants can be held accountable for contaminating surface waters with toxic chemicals that leached into the ground from coal ash pits."

"Presidential hopeful Hillary Clinton would push Congress to reverse a 2005 measure that exempts hydraulic fracturing from certain federal environmental standards, a top adviser said."

"AMBLER, Pa. -- U.S. EPA's Greg Voigt opens a chain-link gate, pushes aside waist-high weeds and scrambles to the highest point in this Philadelphia suburb: a 100-foot pile of industrial waste."

"Environmental groups won a partial victory last week in their campaign to make sure Peabody Energy cleans up its coal mines, a growing concern as the company is going through Chapter 11 bankruptcy proceedings."