Rafael manages Microsoft’s carbon removal program and has worked on that program since 2020. In that role, he reviews projects across technical approaches, from soil carbon up to direct air capture, for their quality, potential, and cost as Microsoft builds its portfolio. He previously developed climate strategies at the Paul G. Allen Family Foundation, including on carbon removal, and started his career working on foreign affairs. He holds a BA (International Relations) from Tufts University and is based in Seattle, USA.