"Political pressure continues to build on Interior Secretary Ken Salazar  as he prepares to announce his decision this week on the fate of a proposed wind farm off the coast of Cape Cod, Mass., that has been stalled for nine years."

An in-depth look at the Grand Canyon ecosystem reveals an unprecedented convergence of threats.

National Geographic takes a breathtaking look at Mount St. Helens, and the Washington ecosystem around it, both as it was before the devastating volcanic eruption of 30 years ago and as it is today after recovery.

"Seventy-five years have passed since the worst of the Dust Bowl, a relentless series of dust storms that ravaged farms and livelihoods in the southern Great Plains that carried a layer of silt as far east as New York City. Today, the lessons learned during that era are more relevant than ever as impending water shortages and more severe droughts threaten broad swaths of the nation."

"The drying up of the Aral Sea is one of the planet's most shocking environmental disasters, U.N. Secretary-General Ban Ki-moon said Sunday as he urged Central Asian leaders to step up efforts to solve the problem."

"Federal government scientists say a 'growing body of evidence' shows that mountaintop removal coal mining is destroying Appalachian forests and dangerously polluting vital headwater streams."

"FLAGSTAFF, Ariz. --  The challenges facing a proposed coal-fired power plant on the country's largest Indian reservation are stark: the withdrawal of a key federal permit, no secured customer or transmission line, and uncertainty over the future of climate change.

The Navajo Nation acknowledges the challenges, but both the tribe and its partner in building the $3 billion, 1,500-megawatt Desert Rock Energy Project say they are committed to moving forward. Environmentalists who have fought the project contend it will be nearly impossible to do so."

"Shell Oil has crossed another hurdle in its plans to drill three exploratory petroleum wells in the Arctic Ocean. The Environmental Protection Agency announced Thursday it had approved a clean air permit for Shell to operate its drilling ship in the Chukchi Sea off Alaska's northwest coast."