David Keith is a prominent figure in the field of climate science and engineering. He is known for his research on geoengineering, which involves large-scale interventions to combat climate change. Keith has contributed significantly to discussions about the potential benefits and risks of technologies like solar radiation management and carbon capture. In addition to his research, David Keith is a professor at Harvard University, where he teaches courses related to environmental science and public policy. He has published numerous articles and papers, helping to shape the conversation around sustainable energy solutions and the ethical implications of geoengineering practices.