Yale Project on Climate Change CommunicationGlobal Warming's Six Americas.
The Alarmed (18%) are fully convinced of the reality and seriousness of climate change and are already taking individual, consumer, and political action to address it. The Concerned (33%) – the largest of the six Americas – are also convinced that global warming is happening and a serious problem, but have not yet engaged the issue personally. Three other Americas – the Cautious (19%), the Disengaged (12%) and the Doubtful (11%) – represent different stages of understanding and acceptanceof the problem, and none are actively involved. The final America – the Dismissive (7%)– are very sure it is not happening and are actively involved as opponents of a national effort to reduce greenhouse gas emissions.