Earth Anomalies

ekim68

Mike
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Ancient tectonic plate discovered beneath Canada, geologists claim


It’s long been known that in the early Cenozoic Era – around 60 million years ago – there were two major tectonic plates, called Kula and Farallon, in the Pacific Ocean off the western coast of North America. But debate has raged about whether they were joined by a third, oddly named Resurrection, which would have since sunk beneath the surface. And now, the geologists on the new study say they’ve found this missing plate.
 

ekim68

Mike
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Ice loss likely to continue in Antarctica


A new international study led by Monash University climate scientists has revealed that ice loss in Antarctica persisted for many centuries after it was initiated and is expected to continue.

"Our study implies that ice loss unfolding in Antarctica today is likely to continue unbated for a long time—even if climate change is brought under control," said lead study authors Dr. Richard Jones and Dr. Ross Whitmore, from the Monash University School of Earth, Atmosphere and Environment.
 

ekim68

Mike
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Giant iceberg may be on collision course with island of South Georgia


Satellite images indicate that an iceberg 158 km (98 mi) long and 48 km (30 mi) wide is floating towards the island of South Georgia in the southern Atlantic, where it could cause damage to the local wildlife, including penguins and seals, if it runs aground.

In 2017, a gigantic sheet of ice covering 6,000 km² (2,300 mi²) broke free from the Larsen C ice shelf in Antarctica and drifted out to sea. Originally designated A-68, it later calved off three smaller bergs, after which it was renamed A-68a. This event sparked considerable scientific interest, especially after freeing up a seabed that's been encased in ice for 120,000 years. And now it looks as if the iceberg could have unpleasant consequences as the winds and tides send it toward South Georgia.
 

ekim68

Mike
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Glaciers in China's bleak, rugged Qilian mountains are disappearing at a shocking rate

Glaciers in China's bleak, rugged Qilian mountains are disappearing at a shocking rate as global warming brings unpredictable change and raises the prospect of crippling, long-term water shortages, scientists say.

The largest glacier in the 800-km (500-mile) mountain chain on the arid northeastern edge of the Tibetan plateau has retreated about 450 metres since the 1950s, when researchers set up China's first monitoring station to study it.
 

ekim68

Mike
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56,771

Clues to Puebloan History Drip Away in Melting Ice Caves


Researchers have discovered charcoal dating back almost 2,000 years in New Mexican ice caves—providing physical evidence that ancestral Puebloans used the ice deposits for drinking water during droughts.

Scientists are working fast to sample cores from the deposits, which likely formed thousands of years ago. Rising global temperatures have made it warm enough that the ice is beginning to disappear from the sites at El Malpais National Monument.
 

ekim68

Mike
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Deep Frozen Arctic Microbes Are Waking Up

In the last 10 years, warming in the Arctic has outpaced projections so rapidly that scientists are now suggesting that the poles are warming four times faster than the rest of the globe. This has led to glacier melt and permafrost thaw levels that weren’t forecast to happen until 2050 or later. In Siberia and northern Canada, this abrupt thaw has created sunken landforms, known as thermokarst, where the oldest and deepest permafrost is exposed to the warm air for the first time in hundreds or even thousands of years.
 

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