According to Steven Koonin, when it comes to climate change, the media, politicians, and other prominent voices have declared that “the science is settled.” Koonin avers that the long game of telephone from research to reports, to the popular media, is corrupted by misunderstanding and misinformation. Koonin says that core questions about the way the climate is responding to our influence, and what the impacts will be remain largely unanswered. Koonin acknowledges that the climate is changing, and he claims the whyand how aren’t as clear as you’ve probably been led to believe, and what the impacts will be remain largely unanswered. In this engaging conversation Michael Shermer challenges Dr. Koonin with many of the most common critiques of his book, Unsettled: What Climate Science Tells Us, What It Doesn’t, and Why It Matters, and Steven Koonin responds by drawing upon his decades of experience — including as a top science advisor to the Obama administration.