Sanders: Climate change still greatest threat to national security

Bernie SandersBernie SandersSunday shows preview: Next steps after Trump upheaval Bernie fights for relevance Sanders shares star power with NY House hopeful MORE stood by his claim that climate change is the greatest threat to national security at Saturday night’s Democratic presidential debate.

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CBS's John Dickerson, the event's moderator, asked Sanders if he still believes climate change represents the biggest outside threat to U.S. safety one day more than 120 people were killed in terrorist attacks on Paris that the Islamic State in Iraq and Syria has taken credit for.

“Absolutely,” the Vermont senator responded. “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 ... struggling over limited amounts of water and land to grow their crops and you’re going to see all kinds of conflict.”

Earlier at the debate, Sanders hit party front-runner Hillary ClintonHillary Rodham ClintonClinton up 12 points in national poll Hispanic Caucus PAC looks to flex its muscles in 2016 LGBT activist Edie Windsor endorses Clinton MORE for voting to authorize the invasion of Iraq, saying the war had led to the rise of ISIS.