Giant holes are bursting open in Siberia, and you can hear the explosions from 60 miles away

Giant holes are popping up all over the frigid tundra of northern Russia, and no one is quite certain where they come from.

However, the Siberian Times reports that witnesses are now describing explosive events that may be connected to the appearance of these mysterious craters...

[R]espected scientist Dr Vladimir Epifanov, the sole leading expert to so far visit the site, said: 'There is verbal information that residents of nearby villages - at a distance of 70-100 km [43-62 mi] - heard a sound like an explosion, and one of them watched a clear glow in the sky.'

Since the crater appeared in winter 2013, more have shown up - including a 100-foot-wide crater on Siberia's Yamal Peninsula, which a pilot first spotted n 2014. Lacking a better explanation, aliens and underground missiles were floated as possible theories, according to the Washington Post.

But the truth - which the new eyewitness reports may help support - is that the holes might come from a threat not even Mulder and Scully are equipped to handle: climate change