We spoke with Dr. Steven Koonin about his new book, "Unsettled: What Climate Science Tells Us, What It Doesn't, and Why It Matters." Dr. Koonin is a former Undersecretary for Science in the US Department of Energy under President Obama and is currently a Professor at New York University, with appointments in the Stern School of Business, the Tandon School of Engineering, and the Department of Physics

Learn more about your ad choices. Visit megaphone.fm/adchoices