This bar chart shows the percentages of responses to the open-ended question “What do you think is the greatest threat that global warming poses to the United States, if any?” Responses to the question were categorized into 11 themes by a team of researchers. Americans are most likely to mention weather extremes and changes (20%) as the greatest threats from global warming. Data: Climate Change in the American Mind, March 2021. Refer to the data tables in the Methods section in the Climate Note for all percentages.