Earth - Environment news

World phosphorous use crosses critical threshold

(PhysOrg.com) -- Recalculating the global use of phosphorous, a fertilizer linchpin of modern agriculture, a team of researchers warns that the world's stocks may soon be in short supply and that overuse in the industrialized ...

Feb 14, 2011 4.4 / 5 (24) 38 | with audio podcast

Addressing the 'nitrogen cascade'

While human-caused global climate change has long been a concern for environmental scientists and is a well-known public policy issue, the problem of excessive reactive nitrogen in the environment is little-known beyond a ...

May 15, 2008 3.8 / 5 (28) 5

Where does stored nuclear waste go?

Millions of gallons of hazardous waste resulting from the nation’s nuclear weapons program lie in a remote location in southeastern Washington state called Hanford. Beneath this desert landscape about two ...

Nov 27, 2007 3.9 / 5 (27) 0