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Sanders: Climate change still greatest threat to national security

Bernie SandersBernie SandersThe Memo: Trump leaves changed nation in his wake Cori Bush dismisses concerns of being 'co-opted' by establishment The Memo: Biden prepares for sea of challenges 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 Diane Rodham ClintonGOP Rep Marjorie Taylor Greene referred to Parkland school shooting as 'false flag' event on Facebook Senators vet Mayorkas to take lead at DHS CNN poll: Melania Trump leaving office as least popular first lady ever MORE for voting to authorize the invasion of Iraq, saying the war had led to the rise of ISIS.