With the U.S. backing out of the Paris agreement, how will we address climate change going forward? WGBH News environmental reporter Craig LeMoult sits down with writer/activist Bill McKibben at the WGBH Studio at the Boston Public Library to discuss this and more. McKibben, author of more than a dozen books and founder of the environmental advocacy organization 350, first warned us of global warming in 1989. In addition to the topic of climate change, he will also discuss his debut novel, "Radio Free Vermont: A Fable of Resistance." Watch the live stream of their conversation below!