It is time to start going door to door and convincing our neighbours to vote for a clean-energy future.

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

Stabilizing the climate is not about saving the human species... Stabilizing the climate is a precious opportunity to pass on to all future human beings gifts of immense value, gifts that, once gone, will be beyond the imagination and skill of humanity to recreate.

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 highest and best use of our time that really matters over the next decade will be working to elect clean-energy candidates, especially in swing states and swing districts around the country.

The human response it calls for is truly heroic, requiring nothing short of rewiring the entire planet with a new generation of clean-energy technologies - and doing that very soon... Are we, as a species, capable of that kind of deliberate global response?

No generation before us has faced a decade of choices that will so profoundly impact the course of life on this planet as those we now face. And no generation before us has had the opportunity to enrich the future so vastly.