Look, first of all, the climate is changing. I don't think the science is clear what percentage is man-made and what percentage is natural. It's convoluted. And for the people to say the science is decided on, this is just really arrogant, to be honest with you, it's this intellectual arrogance that now you can't even have a conversation about it. The climate is changing, and we need to adapt to that reality.
Barack ObamaHope - Hope in the face of difficulty. Hope in the face of uncertainty. The audacity of hope!
Barack ObamaThe fact that there is a robust debate in Congress is good. The fact that the debate sometimes seems unanchored to facts is not so good.
Barack Obama