Top Climate Scientist, Journalist & Activists Blast Trump's Withdrawal from Paris Accord

We host a roundtable discussion on President Trump's announcement Thursday that he will withdraw the United States from the landmark Paris climate accord signed by nearly 200 nations in 2015 and heralded as a rare moment of international collaboration to avert imminent climate disaster. We are joined by Michael Mann, distinguished professor and director of the Earth System Science Center at Penn State University; Kumi Naidoo, South African activist, former head of Greenpeace, now chairperson of Africans Rising for Justice, Peace and Dignity; Asad Rehman, executive director of War on Want; and Antonia Juhasz, oil and energy journalist, author of several books, including "The Tyranny of Oil: The World's Most Powerful Industry-and What We Must Do to Stop It."