This threat is called Melting Permafrost. Let's take a look. There is one end-of-the-world Doomsday threat you may not have heard of. It is far more subtle.

The Arctic permafrost is 1,000 years old. As it thaws, scientists worry what it might unleash In one troubling case, dozens of people were sickened − and thousands of reindeer were killed − ...

Warmer temperatures in the Arctic are thawing the region’s permafrost — a frozen layer of soil beneath the ground — and potentially stirring viruses that, after lying dormant for tens of ...

Tucked below the vastness of the Arctic’s permafrost ice lies a climate-changing sea of methane gas. It’s trapped below the ever-present layers of ice, slowly leaking out when cracks appear ...

There could be something big lurking in the Earth's permafrost. As the planet continues to warm, scientists fear a host of deadly diseases will be unleashed from the frozen earth, after lying ...

Permafrost can be found on land and below the ocean floor in areas where temperatures rarely rise above freezing. It's often found in the Arctic, Greenland, Alaska, Russia, China and Eastern Europe.

Viruses Scientists revive 48,500-year-old ‘zombie virus’ from Siberian permafrost Revived viruses had been dormant for tens of thousands of years ...

In addition, "some of the mercury unleashed by permafrost is being buried in river sediment, though it's not clear how much is being locked away," said Yale Environment 360. The heavy metal is not ...

In Alaska, permafrost has warmed in response to air temperatures that have risen since the late 1800s, and particularly in the past 20 years. During much of the past decade, ...