Dr. Katharine Hayhoe on putting Americans in 6 groups regarding belief in climate change

"At the very end we've got the dismissives, the 7 percenters. The people who say it's a hoax. The ones you hear about online all the time. Your uncle who won't leave it alone. But they're only 7%. 93% of us we can talk to people who are doubtful, people who are disengaged, they've been living under a rock the last 20 years. Don't know where that rock is, would like to know myself sometimes. Then we've got cautious and then concerned and alarmed. And you know more than half of us are concerned or alarmed."