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World s largest iceberg breaks off from Antarctica
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Iceberg Larger Than Majorca Broke off from Northern Edge of Antarctica - Novinite com
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“There is something about the Himalayas not possessed by the Alps, something unseen and unknown,” said mountaineer and botanist Frank Smythe…” a mystery intriguing and disturbing. Confronted by them, a man loses his grasp of ordinary things, perceiving himself as immortal, an entity capable of outdistancing all changes, all decay, all life, all death.”
Acknowledging the blind hubris of our Anthropocene epoch
, NASA is keeping a space-based eye on the Himalayas, Karakoram, Hindu Kush –The glaciers and snowpack of Asia’s three highest mountain ranges harbor the largest volume of freshwater outside the polar ice sheets, leading hydrologists to dub this region “The Third Pole”. One-seventh of the world’s population depends on rivers flowing from these mountains for water to drink and to irrigate crops.
Credit: NSIDC courtesy NOAA Earth System Research Laboratory Physical Sciences Division
Figure 2d. This plot shows the departure from average air temperature in the Arctic at the 925 hPa level, in degrees Celsius, for April 2021. Yellows and reds indicate higher than average temperatures; blues and purples indicate lower than average temperatures.
Credit: NSIDC courtesy NOAA Earth System Research Laboratory Physical Sciences Division
Sea ice extent remained below the tenth percentile range throughout the month of April. However, rate of decline was variable. Notably, the decline paused, and extent even slightly increased between April 14 and April 19 (Figure 2a). This was largely because of an increase in sea ice in the northern Barents Sea, particularly off the northwest coast of Novaya Zemlya.
Losing Mountain Glaciers
(Photo : Photo by Marvin Olson from Pixabay)
According to a report published in the journal Nature, scientists estimated that the world s 220,000 mountain glaciers have been losing more than 328 billion tons (298 billion metric tons) of ice and snow each year since 2015. Every year, enough melt flows into the world s growing waters to submerge Switzerland by nearly 24 feet (7.2 meters).
From 2015 to 2019, the annual melt rate was 78 billion tons (71 billion metric tons) higher than it was from 2000 to 2004. Global thinning rates, which are separate from the amount of water lost, have doubled in the last 20 years, according to Romain Hugonnet, a glaciologist at ETH Zurich and the University of Toulouse in France, who led the research.
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