From Field Ecology to the Frontlines of Climate Politics: Tim Gray’s Journey of Science, Strategy, and Resolve

Tim Gray is one of Canada’s most seasoned, quietly formidable forces in conservation and climate action. He’s spent decades in the trenches—from getting arrested at an environmental protest in Northern Ontario to policy backrooms where evidence becomes law—and has built a career translating science into power, confronting entrenched interests, and evolving traditional conservation into a relentless push for deep climate mitigation. This conversation traces the arc of his impact career, from acid-rain fieldwork and old-growth forest fights to shaping modern climate policy and steering Canada through the turbulence of the global energy transition. Now, as executive director of Environmental Defence, Tim is a model for what commitment looks like when it spans a lifetime—and how conservation becomes climate action at scale.Notes and resources* Tim Gray’s LinkedIn* Environmental Defence Canada* Climate Swings Substack Get full access to Climate Swings at climateswings.substack.com/subscribe