Mysterious crater signs of 'ticking climate bomb'

When a helicopter pilot spotted the first crater in summer 2014, everyone was baffled.

The 100-foot-wide hole appeared on the Yamal Peninsula seemingly out of nowhere, during a tense season of Russian military action in Ukraine and international sanctions.

And then more appeared. Lacking a better explanation, aliens and underground missiles were floated as possible theories, according The Washington Post.

But the truth is that the holes might come from a threat not even Mulder and Scully are equipped to handle: climate change.

Read the Business Insider story - “Giant holes found in Siberia could be signs of a ticking climate 'time bomb'.”