Bruce Hamilton

Bruce Hamilton, National Policy Advisor at the Sierra Club, brings more than five decades of environmental activism to this extended Earth Live conversation.

A wildlife biologist by training, Hamilton joined the Sierra Club in 1977 and served in multiple leadership roles including Deputy Executive Director. He reflects on the evolution of the American environmental movement, from the landmark legislation of the 1970s to the climate fights of today. The conversation touches on the strategies that worked, the battles that were lost, and what he has learned from a lifetime of what he calls 'making good trouble.'

Hamilton offers a rare perspective on the long arc of environmental advocacy: how movements build power over decades, why persistence matters more than individual victories, and what the next generation of activists needs to understand about the fight ahead.