Democratic Presidential candidate Sen. Bernie Sanders (I-VT) said on Saturday that climate change is directly related to terrorism.

“In fact, climate change is directly related to the growth of terrorism,” said Sanders.

“And if we do not get our act together and listen to what the scientists say, you’re going to see counties all over the world…they’re going to be struggling over limited amounts of water, limited amounts of land to grow their crops, and you’re going to see all kinds of international conflict.”

Sanders said at the second Democratic debate in Iowa that climate change poses the biggest threat to America’s national security and to security of the world.

Sanders also argued that the growth of national terrorism and instability in the Middle East was caused by the invasion of Iraq.

“I would argue that the disastrous invasion of Iraq, something that I strongly opposed, has unraveled the region completely and led to the rise of Al Qaeda and to ISIS,” Sanders said.

When Sanders was asked his thoughts about Hillary Clinton’s vote for the Iraq war he added: ” I don’t think any sensible person would disagree that the invasion of Iraq led to the massive level of instability we are seeing right now.”

“I think that was one of the worst foreign policy blunders in the more than history of the United States,” hr claimed.