President Obama, former Vice President Al Gore and the United Nations, among others, argue that global warming is chiefly caused by human activity. A plurality of voters recognize that this view is held mostly by liberals rather than by all Americans.
In a series of several separate surveys since August, roughly 40% of Likely Voters consistently have blamed global warming primarily on human activity. A plurality has just as consistently found that planetary trends are chiefly to blame.
Last April, 59% believed that there is a significant disagreement within the scientific community over global warming. Most (54%) voters believe the news media makes global warming appear worse than it really is.
- In U.S., Concerns About Global Warming Stable at Lower Levels (gallup.com)
- “House Republicans Agree: Global Warming Doesnâ€™t Exist” and related posts (amptoons.com)