Chicago Climate Corps (C3) is a civic organization that bolsters Chicago and the Midwest as a global hub for climate innovation and leadership. C3 unites leaders aged 25-40 to accelerate regional climate action.
Led by Co-Founders and Co-Chairs Rachel Star and Kobi Weinberg, C3 is driving meaningful change in Chicago and the Midwest.


We're proud to partner with the Aspen Institute to bring Aspen Ideas: Climate to Chicago for the first time. This landmark event, taking place in July 2025, will convene global climate leaders, innovators, and changemakers in the heart of the Midwest.