"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."
"An activist with the Communities for a Better Environment takes on Big Oil over delaying the state's global warming law."
"More than 500 years after Spanish priests brought wheat seeds to Mexico to make wafers for the Catholic Mass, those seeds may bring a new kind of salvation to farmers hit by global warming. Scientists working in the farming hills outside Mexico City found the ancient wheat varieties have particular drought- and heat-resistant traits, like longer roots that suck up water and a capacity to store more nutrients in their stalks."
The Atlantic bluefin tuna, one of the wildest of wild fish, is in decline. Paradoxically, aquaculture scientists say a recent breakthrough in captive breeding of the fish may help save it.
"It's been the hottest summer on record in many cities on the East Coast. And with that blistering weather has come a lot of days of unhealthy air."
Bedbugs, after almost vanishing from the U.S. for decades, have come back bigtime as The Bug That Ate New York. EPA and CDC have offered some advice on getting rid of them. But scientists know very little about them.
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