text: Global Warming's Six Americas in May 2011 | Yale Project on Climate Change Communication
  Nearly 40 percent of American adults are in the two groups most concerned about climate change – the Alarmed and the Concerned – while 25 percent of Americans are in the two groups least concerned about the issue – the Dismissive and Doubtful. Different Questions: If given the chance to talk to an expert on global warming, the Alarmed and Concerned would most like to know what the nations of the world can do to reduce global warming, and if there's still time to do so. The Disengaged would most like to ask whether global warming is actually occurring, and what harm it will cause. The Cautious, Doubtful and Dismissive would most like to have an expert explain how scientists know that global warming is happening and is caused by human activities.