A pioneer in sustainability and national security, Sherri Goodman is among the most respected international voices on emerging global risks, including energy and climate security, environment and public health. The Pentagon’s first-ever Deputy Undersecretary of Defense (Environmental Security), Sherri led efforts to transform the Department of Defense into a leader in sustainability, climate resilience and advanced energy.  Today she serves as Secretary General of the International Military Council on Climate & Security. Sherri is a Distinguished Fellow at the Atlantic Council's Scowcroft Center for Strategy and Security and the Global Energy Center and a Senior Associate at the Harvard Arctic Initiative. Her book, Threat Multiplier: Climate, Military Leadership and the Fight for Global Security, gives readers an inside account, from the Pentagon to the battlefield, of today’s military on the front lines of a changing climate, the energy transition, technology upheavals and new health challenges.