glacier
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A comprehensive study has combined field observations and satellite data to track glacial ice loss. The team found that between 1961 and 2016, glaciers globally lost a total of over 9 trillion tonnes of ice, contributing significantly to sea level rise.
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Carbon dioxide in the atmosphere is a major driver of shifts in the Earth’s climate, and in the past too little CO2 has been associated with triggering ice ages. Now a team of scientists has found a surprising new mechanism that could lead to ice ages: Tropical tectonic activity.
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Today, the desert country of Namibia isn’t somewhere you’d expect to find much ice, but 300 million years ago it was a very different landscape. A team of geologists has now discovered a land formation that’s associated with fast-moving glaciers, and isn’t usually found in the desert.
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NASA’s ongoing Operation IceBridge has found a gigantic cavity underneath Thwaites Glacier in West Antarctica, which shows that the area has suffered even more drastic ice loss in recent years than previously thought – and it’s accelerating.
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After monitoring seismic activity over a few years, researchers noticed that the Ross Ice Shelf in Antarctica is “singing” – and listening out for changes in that song could be an early warning system for potential problems.
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The Earth’s spin naturally drifts on its axis over time, and that’s generally chalked up to the way mass is distributed and redistributed across the planet’s surface. Now, NASA scientists studying data gathered across the entire 20th century have identified three broad processes that play a part.
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An international team of scientists has completed the most comprehensive assessment of how Antarctica’s ice mass is changing. The study shows that the rate of ice loss – and the resulting sea level rise – has tripled since 2012, compared to a more steady rate over the last 25 years.
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Scientists investigating melting glaciers have discovered evidence of a previously unknown vicious circle, whereby melted glacial water alters the chemistry on the surface of the ocean and drives further glacial melting, in turn accelerating the rise of seal levels.
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ScienceDeep beneath Antartica’s glaciers, formed by steam from active volcanos, are extensive subglacial cave networks. A team has, for the time, examined soil samples for traces of DNA and revealed these caves could hold a much more diverse set of organisms than previously thought.
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To make it easier to visualize the effects the changing climate is having on the planet, environmental scientists have put together a series of before-and-after photos, highlighting drastic ice loss.
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Researchers analyzing a freak avalanche in Tibet that killed nine people have published findings that suggest meltwater at the base of the glacier lubricated the ice on its path of destruction, meltwater that probably wouldn't have been there were it not for rising temperatures in the region.
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Researchers have found that the disappearance of glacial ice in third-largest region of ice on the planet -the Tibetan Plateau and Himalaya-Hindu Kush mountains - is being sped up due to air pollution.
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