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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."

"The manufacturer settles an environmental lawsuit with California over lead used to keep the artificial turf green. AstroTurf and other turf-makers insist their product is safe in California."

"The reclassification of nearly 1 million acres of land around the Grand Canyon to prevent new mining claims comes with a fundamental change in how the U.S. Forest Service does business with mining companies."

"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."