MICHAEL BLOOMBERG is the founder of Bloomberg LP, a Philanthropist, the UN Secretary-General’s Special Envoy for Cities and Climate Change, and three-term mayor of New York City. His charitable foundation, Bloomberg Philanthropies, employs a unique data-driven approach, often focused on cities, to its five main focus areas: public health, education, the environment, the arts, and government innovation. A passionate supporter of action on climate change, Bloomberg is involved in multiple climate efforts, including partnering with the Sierra Club’s Beyond Coal Campaign, which aims to close half of America’s coal-powered energy production, and supporting state efforts to transition to renewable energy sources. He has served as Chair of the Sustainability Accounting Standards Board, the Task Force on Climate-related Financial Disclosures.

A veteran leader in the environmental movement, CARL POPE is the former Executive Director and Chairman of the Sierra Club. He's now the principal adviser at Inside Straight Strategies, looking for the underlying economics that link sustainability and economic development. He serves as a Senior Climate Adviser to former NYC Mayor Michael Bloomberg. He was a founder of the Blue-Green Alliance and America Votes. He has served on the Boards of Ceres, the California League of Conservation Voters, As You Sow, the National Clean Air Coalition, and California Common Cause. He is currently a member of the US-India Track II Climate Diplomacy project of the Aspen Institute. He writes regularly for Bloomberg View and the Huffington Post. Mr. Pope is also the author of three books: Sahib, An American Misadventure in India; Hazardous Waste in America; and co-author along with Paul Rauber of Strategic Ignorance: Why the Bush Administration Is Recklessly Destroying a Century of Environmental Progress, which the New York Review of Books called "a splendidly fierce book."