Anthropogenic climate change is already leading to substantial increases in Earth’s surface temperature, and storms, droughts, fires, and flooding are becoming more prevalent, more destructive, and stronger. It is imperative that the best strategies to mitigate avoidable changes and adapt to unavoidable ones can be identified and evaluated systematically. However, climate change projections from numerical models of the Earth system remain highly uncertain and are too complex to be readily used to assess climate resilient solutions on a large scale. The Bringing Computation to the Climate Challenge (BC3) team aims to democratize access to reliable information about climate change. This requires: (1) improving the accuracy of climate projections, and (2) developing fast emulators that allow a wide range of stakeholders to query those projections.