2014 Keynote Speaker: Alex Steffen, IDEO

Steffen is the thinking person's optimist. He has been named to numerous lists of leading innovators and has served as an adviser to more than 100 NGOs and businesses, exploring "bright green" strategies to help them thrive in a complex and turbulent future. "The really shocking truth for most of us isn't how bad things are," says Steffen, "it's how good things can get."