U.S. government scientists recently reported that 2015 was the Earth’s warmest year since reliable record keeping began. Majorities of U.S. adults surveyed in Gallup’s annual Environment poll are aware of this finding and believe it is accurate, but they are almost evenly divided on whether the record-high temperatures are attributable mainly to human-caused climate change (49%) or natural variability (46%). CONT.
Riley E. Dunlap, Gallup