The Iowa Freedom Summit & Ag Summit (preparation for Iowa Caucus): on Energy & Oil

Bernie Sanders: Climate change partly causes rise of terrorist groups

SANDERS: Absolutely. In fact, climate change is directly related to the growth of terrorism. And if we do not get our act together and listen to what the scientists say, you're going to see countries all over the world--this is what the CIA says--they're going to be struggling over limited amounts of water, limited amounts of land to grow their crops ask you're going to see all kinds of international conflict.