Bill McKibben

" “Tom Steyer has been one of the hardest-working climate advocates in the country for the last fifteen years. He has been there again and again: at the protests, gathering leaders, trying one tactic after another to make progress in this most crucial of all fights. His interest is deep, personal, and very real — and as governor he'll be in a position to move the world's fourth-largest economy decisively in the right direction, saving Californians lots of money — but also, maybe, saving some of the Golden State's beaches and forests along the way."