The steady majority of Americans recognize that humans are causing global warming, and nearly half say that they’ve been personally impacted. Americans also tend to believe that global warming is affecting the weather, especially in the cases of extreme heat, droughts, and wildfires. Americans who recognize that global warming is happening outnumber those who deny that it’s happening by a greater than four-to-one margin (70% to 16%). 63% of Americans say they feel a personal sense of responsibility to help reduce global warming. Three in five Americans (60%) recognize that global warming is affecting weather in the United States; when asked about specific types of extreme weather, more than two-thirds agree that global warming is affecting extreme heat (70%), droughts (70%), wildfires (70%), and water shortages (68%). Nearly three in five Americans (58%) recognize that global warming is mostly caused by humans.