![]() Meanwhile, the 39% who say they worry a great deal about global warming is down slightly, but not significantly, from 43% last year. A similar percentage of Americans (62%) believe that increases in Earth’s temperature over the past century are due more to pollution from human activities than to natural changes in the environment.Īlso consistent with recent years, just under half of Americans (46%) think global warming will pose a serious threat to their way of life in their own lifetime. When asked when the effects of global warming will begin to happen, six in 10 adults, in line with the rate each year since 2016, say they have already begun. public opinion on four key aspects of global warming has changed little in the past year, maintaining the recent stability in these views. ![]()
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