Public Resource
Poll: Global Warming Attitudes Frozen Since 2016
Gallup

59% of U.S. adults recognize the effects of global warming have already begun to happen, and a similar proportion believe pollution from human activities is more to blame than natural causes for the Earth's rise in temperature over the past century (64%). Fewer Americans (43%) are "highly worried" about global warming, although another 22% say they worry "a fair amount." 43% also expect global warming to pose a serious threat in their own lifetime. In general, the public's views about global warming haven't changed over the past year, according to Gallup's latest annual Environment poll, and are similar to what they have been each year since 2016. However, this stability masks growing divergence between Republicans and Democrats.

Read additional coverage of this polling in Grist, which digs deeper into the partisan data to show important generational splits in Republican attitudes toward climate.