New Haven, Conn.--Public concern about global warming has dropped sharply since the fall of 2008, according to a national survey released today by researchers at Yale and George Mason universities.
The survey found: Only 50 percent of Americans now say they are "somewhat" or "very worried" about global warming, a 13-point decrease.
The percentage of Americans who think global warming is happening has declined 14 points, to 57 percent.
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