Sanders: We'll 'Have to Work with' China, Russia 'to Save the Planet' on Climate

On Thursday's broadcast of MSNBC's "All In," Sen. Bernie Sanders (I-VT) argued that "there is no issue more important" than combatting climate change, stated that we will have to move away from fossil fuels, and said that "You've got to work with China," and "You're going to have to work with Russia if we're going to save the planet."