As Partnerships Director for SustainUS, Collin develops and maintains relationships with others building a movement for justice. A climate justice and human rights activist, Collin works to transition from an exploitative economy based on extraction to a world that works for all. He specializes in communications, strategy, and direct action, and works on divestment, tar sands and fracking resistance, and new economics. Collin has organized for climate and economic transformation with many organizations, including the White House,, Energy Action Coalition, Divest Harvard, DC Divest, Sierra Student Coalition, 350 DC, 350 Massachusetts, Responsible Investment at Harvard, and Students for a Just and Stable Future. He attended COPs 19 and 20 with SustainUS, and writes for The Nation, HuffPost, Mic, and Responding to Climate Change.