John Andersen is Founder and President of Greenleaf Advisors and its affiliate nonprofit, Greenleaf Communities, where he brings together expert science, research, policy, business and government actors to inform and implement solutions to protecting earth’s resources addressing climate, water, land, and energy. He helped develop the world’s leading real estate firm, JLL, and lead The Nature Conservancy’s Great Lakes Program in North America. John presented on North America’s Laurentian Great Lakes ecosystem, the largest freshwater system on Earth, and also water challenges in the western United States, including the Colorado River Basin.