On November 30, 2016, Nobel laureate Steven Chu gave an IST Lecture titled “Climate change, clean energy and nanotechnology for energy”. The industrial and agricultural revolutions have profoundly transformed the world, but the unintended consequence of these revolutions is that we are changing the climate of Earth. In his talk, Steven Chu, William R. Kenan, Jr., Professor of Physics and Professor of Molecular & Cellular Physiology in the Medical School at Stanford University, described new satellite data monitoring climate change, how to make a low cost transition to clean energy, and how nanotechnology can help us meet the challenge.