"The political temperature in the Arctic rose on Tuesday when Vladimir Putin vowed to step up Russia's military presence in the region in response to a claim by Canada to the north pole."
"Skimpy-clothed people splashing amid the red sandstone canyons of Utah define our images of Lake Powell. But six months ago, engineers and water officials from the seven states of the Colorado River Basin quietly met in Santa Fe to consider a more serious possibility: Continued drought could leave too little water in the reservoir for the eight giant turbines in Glen Canyon Dam to produce electricity."
"WASHINGTON/CALGARY -- Canada is running out of time to offer U.S. President Barack Obama a climate change concession that might clinch the controversial Keystone XL oil pipeline, as the country's energy industry continues to resist costly curbs on greenhouse gas emissions."
"PITTSBURGH -- Unions and environmentalists have found one point of agreement in the bitter debate over the natural gas drilling boom: fixing leaky old pipelines that threaten public health and the environment. It's a huge national effort that could cost $82 billion."
Special Report: Part Two
By DONALD BORENSTEIN
Special Report: Part Five
By LISA MEERTS-BRANDSMA
Uganda’s fertile soils and mild climate not only support a rich diversity of flora and fauna, but also allow 80 percent of the country’s land to be under cultivation, and more than 80 percent of its citizens to live as farmers.
Special Report: Part Four
By LEE AHERN
"Environmental and industry advocates say a proposed air emissions reporting permit issued last week for BHP Billiton Ltd.'s San Juan Coal Mine in northwestern New Mexico is the first -- or among the first -- ever proposed for a coal mine."
"The Green Climate Fund, designed as the United Nations' most important funding body in the battle on climate change in developing nations, launched its headquarters on Wednesday in South Korea, but uncertainty over finances clouded the event."
"WASHINGTON — More than two dozen of the nation’s biggest corporations, including the five major oil companies, are planning their future growth on the expectation that the government will force them to pay a price for carbon pollution as a way to control global warming."