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"A limestone 'quarry alley' 45 miles west of downtown Louisville resembles the scarred landscapes of eastern Kentucky, flattened by blasting for coal. ... Limestone, it turns out, is the key ingredient for stripping sulfur dioxide from smokestacks, helping to reduce acid rain and asthma-inducing haze."

"Federal regulators voted [Aug. 13] to impose tough new restrictions on the commercial longline fishing fleet in the Gulf of Mexico in an attempt to protect marine turtles."

"The first hurricane of the Atlantic season loomed far out in the ocean Tuesday, gaining power and moving on a track that forecasters said could take it close to Bermuda by the end of the week."

"Man made levees line the banks of the Mississippi River and its tributaries. They protect towns and they allow farmers to plow the bottomlands. But levees come at a price: habitat destruction and worse flooding downstream. Now, more people are calling for taking down levees and returning floodplain areas to their natural state."

One resident says the Little Pee Dee River is unsafe for swimming because of fecal coliform bacteria from hog farming.

"Water managers and the White House signed a crucial contract Thursday that promises a much-needed infusion of federal dollars for the Everglades."

"U.S. EPA Administrator Lisa Jackson has sided with environmental groups on several challenges contending that permits issued to a Tennessee Valley Authority coal-fired power plant failed to properly account for air pollution."

"The North Carolina State Senate has voted overwhelmingly to ban large wind turbines from the state’s scenic western ridgelines."

A rash of headaches, coughing fits, red eyes, and other symptoms has closed Oak Ridge Elementary School in North Carolina while local, state, and federal officials figure out what is causing it.