"The world's governments struggled on Wednesday to break a deadlock between rich and poor nations on steps to fight global warming and avert a new, damaging setback after they failed to agree a U.N. treaty last year in Copenhagen."
"TABI, Mexico -- The first time Araceli Bastida Be heard the phrase 'climate change' was on TV two years ago. Then she began to understand why strange things had been happening in her village."
"Since summer, signs of severe food insecurity — droughts, food riots, five- to tenfold increases in produce costs — have erupted around the globe. Several new reports now argue that regionally catastrophic crop failures — largely due to heat stress — are signals that global warming may have begun outpacing the ability of farmers to adapt."
"This is what the 2010 midterm elections will change about U.S. climate policy: Cap-and-trade was dead. Now it will be deader."
"The Obama Administration has ignored wrenching climate impacts such as ocean acidification in its effort to estimate the cost of carbon emissions, making emissions limits disproportionately expensive, economists say."
"Not only is Earth's surface warming, but the troposphere -- the lowest level of the atmosphere, where weather occurs -- is heating up too, U.S. and British meteorologists reported on Monday." The findings may put to rest a 20-year-old controversy over differences between satellite and surface measurements of warming.
"Battle lines have been hardening over the proposed Keystone XL pipeline over the last couple of weeks. The pipeline, which will stretch from Alberta in Canada to refineries on the Gulf Coast, would nearly double the United States' capacity to import oil made from Canadian oil sands. Canadian oil sands are a plentiful and secure source of oil, but the extraction process is high in carbon dioxide emissions and takes a toll on pristine Canadian forest ecosystems."
Many Navajo families face a choice between burning coal, which can threaten the safety of their homes and their respiratory health -- or burning propane, which they may not be able to afford.
"The sun may warm the Earth more during waning solar cycles, new satellite data has shown, turning scientific understanding on its head and helping to explain extreme local weather patterns, scientists said on Wednesday."
"More than 2 million cases of malaria are expected in Pakistan in the coming months in the wake of the country's devastating floods, aid workers have warned."
