You can say the Earth is flat, but it doesn't mean you're going to fall off the edge.

The oil industry has outpaced the building of a public consensus of the implications of climate science.

Making consumer choices that reward eco-friendly products and companies is a great way to start.

There's an old African proverb that says "If you want to go quickly, go alone. If you want to go far, go together." We have to go far - quickly. And that means we have to quickly find a way to change the world's consciousness about exactly what we're facing, and why we have to work to solve it.

I would kiss Tipper much longer.

Remember America, I gave you the Internet and I can take it away.

I think the ethical standards established in this White House have been the highest in the history of the White House.