James Hansen

I have been described as the grandfather of climate change. In fact, I am just a grandfather and I do not want my grandchildren to say that grandpa understood what was happening but didn't make it clear.

Magazines and opinions of you and stuff like that, those will change, but your opinion of yourself does not have to based on what other people say. So I just learned that my inner voice has to be louder than their outside voice.

You make your first album, you make some money, and you feel like you still have to show face, like 'I still go to the projects.' I'm like, why? Your job is to inspire people from your neighborhood to get out. You grew up there. What makes you think it's so cool?