ScienceDaily: Public concern about global warming is once again on the rise, according to a national survey released June 8 by researchers at Yale and George Mason Universities. The results come as the U.S. Senate prepares to vote this week on a resolution to block the EPA from regulating carbon dioxide as a pollutant. Since January, public belief that global warming is happening rose four points, to 61 percent, while belief that it is caused mostly by human activities rose three points, to 50 …