When Peter Kalmus was in graduate school for physics, James Hansen, known as the father of climate change awareness, spoke to his class.
Atmospheric scientist Peter Kalmus has reduced his carbon footprint to one-tenth of the average person’s. Photo courtesy of Peter Kalmus.
Hansen told the students that the earth was going to keep warming until an energy imbalance was rectified. That was when the seriousness of climate change hit Kalmus, he said. Before that, “it felt like science fiction; it felt like something that wasn’t real, that I wouldn’t have to worry about.”