Andy Karsner is a technology entrepreneur, investor, conservation activist, and energy and environmental policymaker. He was most recently Managing Partner at Emerson Collective, where he founded and led Elemental, its climate tech equity and philanthropy portfolio. His entrepreneurial leadership has been associated with both venture capital and private equity responsible for guidance and/or holdings in some of the most successful technology startups over the last ten years, including Tesla, Nest, Codexis, C3, Recurrent, Carbon 3D, and Boom. Previously, he was US Assistant Secretary and America’s top regulatory official for energy efficiency.