Mysterious craters blowing out of Russia could mean trouble for the whole planet

Mysterious craters blowing out of Russia could mean trouble for the whole planet Mysterious craters blowing out of Russia could mean trouble for the whole planet. In northern Siberia, rising temperatures are causing mysterious giant craters — and even more dire consequences could be in store, say climate scientists. The Russian province's long-frozen ground, called permafrost, is thawing, triggering massive changes to the region's landscape and ecology. It could even threaten human lives.

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