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Portugal may be the first nation out of the blocks in the scramble for electric automobiles. Its motives may be more selfish than ecological.

"Californians’ eagerness to battle global warming seems to be cooling a bit: The latest survey on the state’s environmental attitudes, released on Wednesday, showed that 47 percent consider the threat of global warming very serious, a decline of seven percentage points from two years ago."

"State regulators violated the Alaska Constitution when they approved exploration permits for the proposed Pebble copper and gold mine without allowing the public to weigh in first, according to a civil lawsuit filed Wednesday."

"New-car shoppers appear to have already snapped up all the $1 billion that Congress appropriated for the 'cash for clunkers' program, leading the Transportation Department to tell auto dealers Thursday night to stop offering the rebates."

"There's no question that the world's fish are in trouble. Fishermen are pulling fish out of the seas far faster than these populations can grow back. Some fisheries are heading toward collapse or even extinction. But a major new analysis of this grim picture shows that fisheries aren't doomed. In fact, some are on the mend."

"The House approved the first major changes to food-safety laws in 70 years Thursday, giving sweeping new authority to the Food and Drug Administration to regulate the way food is grown, harvested and processed."

"The biggest opportunity to improve the nation’s energy situation is a major investment program to make homes and businesses more efficient, according to a study released Wednesday."

"The Obama administration is in talks with the Senate to craft a plan to ratify the U.N. Convention on the Law of the Sea, a top State Department official said yesterday."

White roofs, a measure recently urged by Energy Secretary Steven Chu, are catching on both as a way of fighting global warming and a way to cool houses cheaply.