Image via NeedPix/Victor Tangermann
Cold Storage

Scientists Discover Ancient Viruses Inside Glacier

byKristin Houser
1. 22. 20
Image via NeedPix/Victor Tangermann

In a "worst-case scenario, this ice melt could release pathogens."

Break the Ice

In 2015, a team of scientists from the United States and China traveled to Tibet to gather samples of Earth’s oldest glacial ice.

Earlier this month, they published a paper on the pre-print server bioRxiv detailing their discovery of 28 new virus groups in the 15,000-year-old ice — and warning that climate change could free the ancient viruses into the modern world.

Ancient Viruses

The team drilled 50 meters (164 feet) down into the glacier to obtain two ice cores, which then underwent a three-step decontamination protocol. After that, the researchers used microbiology techniques to identify microbes in the samples.

Those techniques revealed 33 virus groups — including, notably, 28 ancient viruses that scientists had never seen before.

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Double Trouble

As the team pointed out in its paper, climate change now threatens both our ability to exhaustively catalogue those tiny lifeforms — as well as our ability to stay safe from dangerous ones.

“At a minimum, [ice melt] could lead to the loss of microbial and viral archives that could be diagnostic and informative of past Earth climate regimes,” they wrote. “However, in a worst-case scenario, this ice melt could release pathogens into the environment.”

READ MORE: Ancient never-before-seen viruses discovered locked up in Tibetan glacier [Live Science]

More on ice melt: The Melting Arctic Is Releasing Poison, Disease and Nuclear Waste

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