"'The science is clear -- our planet is warming. That warming is caused by carbon pollution, by human activity, and we need to cut carbon pollution,' said Prime Minister Julia Gillard on Sunday, announcing Australia's first price on carbon emissions."

"The lives of half a million children in the Horn of Africa are at risk, international aid agencies said on Friday, as the worst drought in decades forces thousands of people to flee their homes each day."

"Marauding insects have become a leading threat to the nation’s forests over the past decade, a problem made worse by drought and a warming climate, a federal report says."

"The worst drought in 60 years is causing a severe food crisis in East Africa. In Kenya, the world's largest refugee camp is overwhelmed as 10,000 climate refugees from across the drought-stricken region arrive each week seeking water, food and shelter."

"New Hampshire Governor John Lynch on Wednesday vetoed a bill that would have ended the state's participation in a regional greenhouse gas reduction program, citing concerns about environmental and economic competitiveness."

"Presenting a green-minded position on climate change to constituents ... appears to be beneficial for politicians, according to a new study by the social psychologist Jon Krosnick of Stanford University’s Woods Institute for the Environment."

"If European lawmakers have their way, by next year any American flying from Boston to Paris will have to pay for the plane's carbon emissions over Massachusetts, Nova Scotia, the Atlantic Ocean and France."

"When it comes to reporting on climate change, European media are from hothouse Venus, and their American counterparts are from considerably more frigid Mars. The divide between them may be having a profound impact on climate and energy policy in either part of the world."

"Aid agencies have launched multimillion-pound appeals to address a mounting humanitarian emergency in east Africa, where severe drought and high food prices have left 10 million people requiring assistance."