Guardian: Public belief in climate science has seen a precipitous slide in the US, according to new polling that suggests fewer Americans are concerned about the threat posed by global warming. Nearly half of Americans – 48% – now believe the threat of global warming has been exaggerated, the highest level since polling began 13 years ago, the poll published today by Gallup said. It directly linked the decline in concern to the controversies about media coverage of stolen emails from the …