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- Scientists are studying a new threat emerging from melting permafrost: ancient viruses.
- A new study says these pathogens could pose significant risks to modern-day humans.
- The authors say the chances of a catastrophic re-emergence are low but worrisome.
As permafrost thaws across the world due to a warming climate, scientists are researching a potential new threat: The emergence of ancient viruses trapped in the frost for tens of thousands of years.