"The first signs of bipartisan support for overhauling the nation's chemical safety law emerged Monday, as three Republicans joined 23 other senators calling for tough restrictions on toxic flame retardants."

"Canada's prime minister, Stephen Harper, faces a widening revolt by the country's leading scientists against sweeping cuts to government research labs and broadly pro-industry policies. The scientists plan to march through Ottawa in white lab coats on Tuesday in the second big protest in a month against the Harper government's science and environmental agenda."

"A new water-purification system using solar power to purify contaminated groundwater holds promise for solving water problems not only on the Navajo Nation, where it is being tested, but for many other indigenous communities as well."

"Tom Dettweiler makes his living miles down. He helped find the Titanic. After that, his teams located a lost submarine heavy with gold. In all, he has cast light on dozens of vanished ships. Mr. Dettweiler has now turned from recovering lost treasures to prospecting for natural ones that litter the seabed: craggy deposits rich in gold and silver, copper and cobalt, lead and zinc."

"A coalition of about a dozen environmental groups is preparing to file a lawsuit as early as Tuesday seeking greater protections as Shell prepares to begin drilling exploratory wells off the North Slope of Alaska this summer, spokesmen for the groups said."

"A new study enters the debate over the safety of hydraulic fracturing: researchers report that naturally occurring paths in the rock bed in northeastern Pennsylvania allowed some contaminants to migrate into shallow drinking aquifers. They found no direct connection between the contamination and shale-gas drilling operations in the region, however."

"As far back as records go (1895), never has the U.S. strung together 12 straight months warmer than May 2011 to April 2012 according to new data released today by NOAA’s National Climatic Data Center (NCDC)."