Sanders: Climate change still greatest threat to national security

Bernie SandersBernie SandersTop Democratic super PACs team up to boost Biden Poll: Biden leads Sanders by 22 points GE employees urge company to use laid-off workers to make ventilators 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 ClintonJuan Williams: Mueller, one year on Biden tops Trump by 9 points in Fox News poll With VP pick, Biden can't play small ball in a long ball world MORE for voting to authorize the invasion of Iraq, saying the war had led to the rise of ISIS.