Claire oversees the Biosecurity and Pandemic Preparedness team and makes grants across Open Philanthropy’s efforts to reduce global catastrophic risks. She joined Open Philanthropy in August 2015 as a Research Analyst and went on to lead our Global Catastrophic Risks Capacity Building team. Claire has a B.S. and M.S. in Earth Systems from Stanford University, where she conducted research related to the science, ethics, and governance of solar geoengineering.