First the good news. A new Reuters/Ipsos poll out Thursday found that 57 percent of U.S. adults think climate change is caused by "human activity" or "mostly human activity"—a stance held by 97 percent or more of actively publishing climate scientists. That's up from the 47 percent in 2012.
The bad news? That implies 43 percent of U.S. adults still have doubts about the global phenomenon, similar to President Donald Trump.