There's probably 5000 times more solar energy than the humans will ever need. We could cover our highways with solar collectors to make ribbons of energy, and I think that it's really the largest job creation program in the history of the planet that's in front of us. It's a celebration of the abundance of human creativity combined with the abundance of the natural world.

"William McDonough: Godfather of Green", WNYC Studio 360 (18 March 2008).