A new politics can spark the clean-energy revolution that will serve as a foundation for a new era of human prosperity, protect the world's forests, stabilize the climate, and preserve the diversity of life on the planet.

We stand at a moment in history without precedent. Decisions that are ours to make over the next ten years will have a sweeping impact on the future direction of life on the planet.

One hundred years ago, visionary political leaders from the Progressive Era established a system of national forests and parks in our country that are the envy of the world and today are the treasure of an entire nation. Why not a similar, global vision for our generation?

A new politics can spark the clean-energy revolution that will serve as a foundation for a new era of human prosperity, protect the world's forests, stabilize the climate, and preserve the diversity of life on the planet.

I tell my graduate students [at Bard College], ‘There are two ways to change the world: through policy, or through sustainable business.’ With sustainable business, individuals build solutions within the current system… Sustainable business asks, ‘How would nature do this?’

The most rational defender of nature is driven by a passion for wildness that cannot be explained by an appeal to logic.

The Arctic is the planet's air conditioner and it's starting to break down.