Gideon Forman received his Master's in Philosophy from McGill University and a Certificate in Renewable Energy from the University of Toronto. For over a decade he was Executive Director of the Canadian Association of Physicians for the Environment, leading campaigns that helped to ban lawn-pesticides and phase-out coal-fired power. The pesticide ban he helped to establish in Ontario was the most health-protective legislation of its kind in North America. In 2013, he received a Queen Elizabeth II Diamond Jubilee medal in recognition of his environmental work.
He became a Climate Change Policy Analyst with the David Suzuki Foundation in 2015. At the DSF he promotes the expansion of public transit and active transportation. He is a frequent contributor to the Toronto Star and Corporate Knights.