Iceland misplaced 750 sq km of glaciers over the past twenty years as a consequence of international warming- Expertise Information, Completely happy Easterday
Agence France-PresseJun 01, 2021 10:05:24 IST
Iceland’s glaciers have misplaced round 750 sq. kilometres (290 sq. miles), or seven % of their floor, for the reason that flip of the millennium as a consequence of international warming, a research printed on Monday confirmed. The glaciers, which cowl greater than 10 % of the nation’s land mass, shrank in 2019 to 10,400 sq. kilometres, the research within the Icelandic scientific journal Jokull stated. Since 1890, the land coated by glaciers has decreased by virtually 2,200 sq. kilometres or 18 %.
However virtually a 3rd of this decline has occurred since 2000, based on the current calculations by glaciologists, geologists and geophysicists.
Consultants have beforehand warned that Iceland’s glaciers are prone to disappearing completely by 2200.
The ice’s retreat over the previous twenty years is sort of equal to the whole floor space of Hofsjokull, Iceland’s third-biggest ice cap at 810 sq. kilometres.
“Glacier-area variations in Iceland since round 1890 present a transparent response to variations in local weather,” the authors of the research wrote.
“They’ve been reasonably synchronous over the nation, though surges and subglacial volcanic exercise affect the place of some glacier margins,” they added.
In 2014, glaciologists stripped the Okjokull glacier of its standing as a glacier, a primary for Iceland, after figuring out that it was made up of lifeless ice and was now not transferring as glaciers do.
Practically all the world’s 220,000 glaciers are shedding mass at an ever rising tempo, contributing to greater than a fifth of world sea stage rise this century, based on a research printed in Nature in April.
Analysing photographs taken by NASA’s Terra satellite tv for pc, they discovered that between 2000-2019, the world’s glaciers misplaced a median of 267 billion tonnes of ice annually.
The group additionally discovered that the speed of glacier soften had accelerated sharply throughout the identical interval.
Between 2000 and 2004, glaciers misplaced 227 billion tonnes of ice per yr. However between 2015-2019, they misplaced a median of 298 billion tonnes annually.
The findings can be included in a forthcoming evaluation report from the United Nations’ Intergovernmental Panel on Local weather Change due in 2022.
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