Sarah Kearney is the founder of PRIME Coalition, a Cambridge-based 501c3 public charity working to combat climate change. PRIME partners with philanthropists to place charitable dollars into market-based solutions for reducing carbon emissions. They fund start-ups offering innovative technologies in this space, but are different from impact investing and traditional Venture capital in a few critical ways. Kearney is a visionary and an optimist for the climate cause - building PRIME out of her MIT graduate dissertation when she was only 26 years old. Listen to learn about impact investing, philanthropic capital, and innovation tackling climate change.