Yeah that ice is a problem.
Check it out:

A top adviser to President Obama and member of National Security Council Staff, Alice Hill said that climate change is “one of eight top strategic risks to United States’ interests” along with risks like the “proliferation of weapons of mass destruction,” during a speech at the Georgetown University Law Center’s discussion on national security and climate change in Washington, D.C., on Friday.

“Today I want to speak to you about the national security risks posed by a changing climate, the impacts we are already observing both internationally and domestically, and what’s predicted to come,” said Hill. “I also want to briefly share with you the work that President Obama’s administration has undertaken to address these security challenges. I work on the National Security Council staff. Let me be clear. The changes to our environment are a matter of national security.”