National (U.S.)

"Animal manure, a byproduct as old as agriculture, has become an unlikely modern pollution problem, scientists and environmentalists say."

"Recirculating aquaculture systems cut the pollution and disease that occur in current fish farming operations. Many see it as the future of the industry."

"South Carolina Attorney General Henry McMaster said on Wednesday he would take legal action to stop President Barack Obama from dropping plans to build a nuclear waste storage facility in Nevada."

The so-far unfounded fears of a few that President Obama will restrict gun sales are boosting sales as gun enthusiasts stockpile. One result: a boost in state funds for fish and wildlife restoration. Under the Pittman-Robertson Act of 1937, a federal tax on guns and ammo is set aside for this purpose.

"The Teamsters union and environmental activists have formed an unlikely and outspoken alliance aiming to clear the air in American ports, and perhaps bolster the Teamsters’ ranks in the process."

"Wal-Mart Stores Inc plans to massively cut greenhouse gas emissions from its global supply chain within five years -- an effort the retailer said is equivalent to taking more than 3.8 million cars off the road for a year."

"Senate Majority Harry Reid (D-Nev.) has instructed Sen. John Kerry (D-Mass.) to produce a revamped climate bill as soon as possible, according to sources, a task Kerry intends to accomplish within two weeks."

A new report from the USGS looks at the potential for uranium mining in the West -- inlcuding one site in the Grand Canyon watershed area.

"A Silicon Valley company is claiming a breakthrough in a decades-old quest to develop fuel cells that can supply affordable and relatively clean electricity. Google, Bank of America, Wal-Mart and other large corporations have been testing the devices, which will be formally introduced on Wednesday."

"At least 31 more coal-ash impoundments across the country -- including two in West Virginia -- have been found to have polluted nearby groundwater, wetlands and streams, according to a report issued Wednesday by two national environmental groups. The report brings to more than 100 the total number of sites where coal-ash disposal has been linked to contamination of water supplies with toxic pollutants including arsenic, cadmium and selenium."