Texas Tribune: Most Texans believe in global warming, but many are skeptical that the phenomenon, if happening, is mostly caused by human activity, according to a survey released Tuesday by the Yale Project on Climate Change Communication that comes after another sweltering, dry summer. Some 70 percent of Texans believe that global warming is happening, according to the survey data. Fourteen percent believe the earth is not warming. Fewer than half of the 800 Texans surveyed 44 percent identified humans as...