Pollution

"FRESNO, Calif. -- Nitrate contamination of drinking water is a pervasive problem in California's agricultural heartland and is bound to intensify in the coming years, according to a University of California, Davis study released Tuesday."

Contaminated fill, a little-noticed and largely unregulated health threat, is keeping some ball fields closed this spring in New Jersey ... and probably is a problem in many other areas.

"CHEYENNE, Wyo. -- The state of Wyoming, U.S. Environmental Protection Agency and two American Indian tribes announced Thursday they have agreed to additional testing of groundwater that the federal agency says may have become contaminated by gas development that includes hydraulic fracturing."

"The nonprofit group Friends of the Earth filed a lawsuit against the Environmental Protection Agency today to force the regulation of lead emissions from general aviation aircraft under the Clean Air Act."

"LUDINGTON, Mich. (AP) — On many a summer evening, Jim Fay joins dozens of onlookers on this tourist town's waterfront, exchanging friendly waves with passengers and crew members as the S.S. Badger chugs into the harbor after a 60-mile voyage across Lake Michigan from Manitowoc, Wis. It's a cherished ritual in Ludington, and its days may be numbered. "

"TALLAHASSEE — Federal environmental officials underestimated the cost of implementing their new water pollution rules for Florida, just as critics have been saying, a National Research Council panel concluded in a report released Tuesday."

"NIAGARA FALLS, N.Y. — Niagara Falls has gone on record against treating wastewater from hydraulic fracturing, with elected officials saying they don't want the city that endured the Love Canal toxic waste crisis to be a test case for the technology used in gas drilling operations."

"Senate Republicans' push for a vote on approval of the delayed $7 billion Keystone XL oil pipeline project gained momentum on Tuesday after Democrats failed to end debate on a major transportation bill.

Fifty-two senators, most of them Democrats, voted to move forward on the $160 billion highway bill without a proposed Republican amendment to authorize construction of the Canada-to-Texas pipeline, eight votes short of the 60 needed to end debate.

"SAN FRANCISCO -- In 2005, the USS America aircraft carrier was towed out to sea on her final voyage. Hundreds of miles off the Atlantic coast, U.S. Navy personnel then blasted the 40-year-old warship with missiles and bombs until it sank."