40% of Americans Say Global Warming Can Cause Human Extinction, Even if Hottest Period Was Before Man Existed
Four in 10 Americans — or 39 percent — think the odds for human extinction because of climate change or global warming are 50 percent or more. But the majority of Americans, or 58 percent, think the odds of human extinction because of climate change is less than 50 percent, revealing that climate change is not a topic of universal agreement in the United States.