Scientists stunned to discover plants beneath mile-deep Greenland ice
2021年3月15日 · Scientists found frozen plant fossils, preserved under a mile of ice on Greenland. The discovery helps confirm a new and troubling understanding that the Greenland Ice Sheet has melted...
Ice core from secret US Army base reveals dramatic historical Greenland …
2023年7月20日 · Back in the early 1960s, the US Army conducted a secret Cold War operation beneath Greenland's frozen tundra. Now a chance rediscovery from that operation could rewrite the history of the north-west Greenland ice sheet, and our understanding of its stability.
Greenland Melted Recently, Shows Higher Risk of Sea Level Rise
2023年7月20日 · A large portion of Greenland was an ice-free tundra landscape—perhaps covered by trees and roaming woolly mammoths—in the recent geologic past, new UVM-led research shows. This indicates that the ice sheet on Greenland may be more sensitive to human-caused climate change than previously...
Ice Core From Secret Cold War Army Mission Reveals Greenland …
2023年7月23日 · During the Cold War, a secret U.S. Army mission, at Camp Century in northwestern Greenland, drilled down through 4560 feet of ice on the frozen island—and then kept drilling to pull out a twelve-foot-long tube of soil and rock from below the ice. Then this icy sediment was lost in a freezer for decades.
When Greenland was green: Ancient soil from beneath a mile of …
2023年7月20日 · About 400,000 years ago, large parts of Greenland were ice-free. Scrubby tundra basked in the Sun’s rays on the island’s northwest highlands. Evidence suggests that a forest of spruce...
Researchers find 3-million-year-old landscape beneath Greenland …
2014年4月23日 · "Before it was covered by the second largest body of ice on Earth, Greenland looked like the green Alaskan tundra." To confirm their findings about this ancient landscape, the researchers also measured beryllium levels in a modern permafrost tundra soil on the North Slope of Alaska and found that the values were very similar.
Ancient Plant, Insect Bits Confirm Greenland Melted in Recent …
2024年8月6日 · A new study provides the first direct evidence that the center—not just the edges—of Greenland’s ice sheet melted away in the recent geologic past, and that the now ice-covered island became home to a living tundra landscape.
Ancient poppy seeds and willow wood offer clues to the Greenland …
2024年8月5日 · These were unmistakably the remains of an arctic tundra ecosystem – and proof that Greenland’s entire ice sheet disappeared more recently than people realize. These tiny hints of past life came...
Ancient leaves preserved under a mile of Greenland’s ice – and …
2021年3月16日 · In 1963, inside a covert U.S. military base in northern Greenland, a team of scientists began drilling down through the Greenland ice sheet. Piece by piece, they extracted an ice core 4 inches...
Ancient Landscape Is Found Under 2 Miles Of Ice In Greenland
2014年4月19日 · In a surprising discovery, scientists have found evidence of a tundra landscape in Greenland that's millions of years old. The revelation goes against widely held ideas about how some glaciers...