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"Can light-colored rooftops and roads really curb carbon emissions and combat global climate change? The idea has been around for years, but now, a new study by researchers at Lawrence Berkeley National Laboratory that is the first to use a global model to study the question has found that implementing cool roofs and cool pavements in cities around the world can not only help cities stay cooler, they can also cool the world, with the potential of canceling the heating effect of up to two years of worldwide carbon dioxide emissions."

"Tens of thousands of gray wolves would be returned to the woods of New England, the mountains of California, the wide open Great Plains and the desert West under a scientific petition filed Tuesday with the federal government."

"None of the five witnesses called to testify will appear at Wednesday’s hearing of the U.S. Coast Guard-Interior Department probe into what caused the Deepwater Horizon oil rig to explode."

"It's simply known as 'the wall,' a steel-and-concrete structure costing about $22 million that will be pounded deep into the floor of the Elizabeth River near one of the worst toxic-waste sites in Hampton Roads."

"The EPA says some communities in Louisiana face a 'moderate health risk' due to hydrocarbon fumes from the Gulf oil spill. Researchers will report air quality findings this week."

"A top BP official aboard the oil rig that exploded in the Gulf of Mexico in April was expected to refuse to speak at a federal hearing Tuesday."

"Five Great Lakes states filed a lawsuit in federal court Monday to try to block Asian carp from entering Lake Michigan, the third attempt to seek the closing of Chicago-area shipping locks through the court system."

"The Great Lakes are feeling the heat from climate change. As the world's largest freshwater system warms, it is poised to systematically alter life for local wildlife and the tribes that depend on it, according to regional experts."