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GREENLAND ICE SHEET
Greenland is in the global spotlight after the new US security deal — now scientists have mapped the hidden world beneath its iceScientists have revealed the intricate landscape hidden beneath the Greenland Ice Sheet, mapping nearly 2,000 subglacial valleys. These val...- 'Earth has lost over 12 trillion tonnes of ice in 47 years'About 12.5 trillion tonnes of ice have melted from polar regions since 1979. Warmer ocean waters are causing five-sixths of this significan...
- In 2009, NASA started conducting the largest airborne survey of Earth's polar ice under Operation IceBridge to bridge the observational gap between ICESat and ICESat-2In 2009, NASA started conducting the largest airborne survey of Earth's polar ice under Operation IceBridge to bridge the observational gap...
- In 2011, Swedish and Danish researchers fenced muskoxen out of test areas in Greenland. 3 years later, plants there absorbed only half as much carbon in summerMuskoxen, ancient Arctic survivors, maintain healthy grasslands which store vital carbon. These large herbivores face threats from climate ...
- In 1964, NASA first tracked a satellite with lasers; the method later helped measure sea-level rise and ice lossIn 1964, NASA researchers made history by tracking a satellite for the first time using a laser beam. Leveraging spare radar components and...
- 7,000 years ago, Greenland’s giant ice dome disappeared as temperatures climbed. Today, scientists say the ancient melting occurred at temperatures close to those now threatening the island’s remaining iceGreenland’s 1,600-foot ice dome vanished 7,000 years ago when temperatures were several degrees warmer than today. Now, scientists have fou...
- In 2015, NASA's New Horizons flew past Pluto and captured detailed images of its frozen surface. More than a decade later, scientists revisited the images and found evidence that liquid nitrogen may have once flowed across the dwarf planetScientists found evidence of liquid nitrogen flow beneath Pluto's Sputnik Planitia. This flow may have occurred after rising through cracks...
- In 2019, an international team began monitoring Greenland's Petermann Glacier's floating ice tongue from space. 7 years later, 76.4 sq km broke away, creating a Manhattan-sized ice island, while two more could reduce the tongue by 254 sq kmGreenland's Petermann Glacier lost a large iceberg, its biggest since 2012. Scientists have monitored this glacier's floating ice tongue fo...
- In 1966, the U.S. Army drilled through 1.4 km of Greenland ice; decades later, forgotten soil from the core revealed preserved leaves and twigsA forgotten Greenland soil sample from 1966 revealed ancient plant remains. This discovery showed the area was once ice-free and vegetated....
- The US Army built a nuclear-powered city inside the Greenland ice sheet as cover for a plan to run 600 missiles through 4,000 km of tunnels beneath it; Denmark found out in 1997Camp Century was an underground base in Greenland powered by a nuclear reactor. This base concealed Project Iceworm, a secret plan for 600 ...
- Greenland's gravity is weakening and here is the 30 million tonnes reasonGreenland is losing an estimated thirty million tonnes of floating ice hourly. This rapid melting, driven by climate change, accelerates gl...
- Mystery Solved: Scientists Finally Explain the Strange Swirls Hidden Deep in Greenland’s IceMysterious plume-like structures deep within the Greenland Ice Sheet, observed for over a decade, are now explained by thermal convection. ...
- Reversing warming may stop Greenland ice sheet collapse: studyBreaching the global warming limits could cause Greenland's ice sheet to contribute more than a meter to rising sea levels, according to a ...
- Greenland at its warmest in 1,000 years: Study"This confirms the bad news that we know already unfortunately ... (It is) clear that we need to get this warming under control in order to...
- Greenland may lose 4.5 per cent ice by end of century: StudyGreenland may lose 4.5 per cent of its ice by the end of this century - contributing up to 13 inches of sea level rise - if worldwide green...
- Movement of Greenland ice during past 9,000 years mappedThe snowfall rates were higher in the past 9,000 years with the slow stiffening of the ice sheet and the collapse of an "ice bridge" that u...
- Climate change altering Greenland ice sheetFirn is multi-year compacted snow that is not as dense as glacier ice. Instead, it forms a porous near-surface layer over the ice sheet.
- NASA maps layers deep inside Greenland ice sheetScientists using ice-penetrating radar data collected by NASA have created the first-ever comprehensive map of layers deep inside the Green...
- Sea levels across the world to rise faster than imaginedSea levels across the world are all set to rise much faster than imagined, thanks to the Greenland ice sheet, known to be stable till now, ...
- Melting glaciers also behind sea-level riseWorld's shrinking glaciers contributed to almost a third of the sea-level rise between 2003 and 2009, a new study has found.
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