Bill Weihl has likely done more to drive down GHG emissions from the tech sector than any single person. He was the Green Energy Czar at Google, building the strategy and team that took the company to 100% renewable energy and to carbon neutrality for its primary operations. Bill also headed Facebook’s sustainability efforts and co-founded several tech industry-wide efforts including RE 100. He is now working on a project that could redefine how corporations act on climate. Listen to his story and his strategy to use companies and their employees to tilt the political balance.