Scientists who study glacier ice have found viruses nearly 15,000 years old in ice samples from the Tibetan Plateau in China. Most of those viruses are unlike any viruses that have been cataloged to date.
Scientists were alarmed at the amount of dissolved mercury they found in rivers and fjords. The heavy metal raises concerns for the health of indigenous communities. And with global warming, the problem may get worse.
A huge chunk of ice more than three times the size of Paris has broken off one of Earth's most critical ice shelves, Pine Island Glacier in Antarctica. This has leading scientists concerned that the glacier could soon completely break down.
A gigantic cavity - almost 300 meters tall - growing at the bottom of Thwaites Glacier in West Antarctica is one of several disturbing discoveries reported in a new study of the disintegrating glacier.
Super salty water beneath ice could serve as a terrestrial analogue for a habitat for life on other planets.
The Totten Glacier in East Antarctica has an unstable area that could collapse and contribute to more than two metres of sea level rise beyond what is generally predicted if climate change remains unchecked, researchers say.