Greenland ice sheet melted at record rate in 2019 due to spike in emissions: Study

Scientists have said that loss of ice in Greenland, largest contributor to rise in sea level, occurred at a record rate in 2019, surpassing previous values by 15 percent.

A new analysis published in journal Nature states that scale at which glaciers are melting is ‘unprecedented’ as per records dating as back as 1948. immediate cause of such huge loss, explained by researchers, is high-pressure systems that became blocked over Greenland last summer. 

melt was so massive that it would be just eugh to cover entire California in more than four feet of water. Two years after Greenland ice sheet melted at a minimal rate, it broke all records last summer with 586 billion tons (532 billion metric tons) of ice melting which is more than 140 trillion gallons (532 trillion litres) of water. It is also greater than yearly aver loss of 259 billion tons since 2003 and broke previous record of 511 billion tons (464 billion metric tons) in 2012.

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“t only is Greenland ice sheet melting, but it’s melting at a faster and faster pace,” said study le author Ingo Sasgen, a geoscientist at Alfred Wegener Institute in Germany.

new research claiming rapid mass loss in 2019 is based on satellite measurements and it also revealed that ice has remained on a “trajectory of increasing mass loss since late 1990s in response to Arctic warming”. 

Over last three deces, Greenland’s contribution to global sea levels has only escalated and researchers have informed that ongoing emissions are furr pushing rn continent into an era of extreme melting. 

In study, researchers wrote, “In June and July 2019, ice sheet experienced amalously high rates of meltwater ruff close to maximum rates observed over full 2003–2018 period. GRACE-FO measurements reveal a peak mass change in July 2019…”

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Greenland’s ice sheet beyond repair

news analysis of Greenland ice sheet comes in backdrop of separate research that called it beyond repair. analysis published in same journal earlier this week said that even if global warming is w stopped, ice would continue to melt in Greenland.

researchers have previously concluded that annual swfall on glaciers is longer eugh to relo ice that melts during summer. study observed 234 glaciers across Arctic spanning 34 years till 2018.  glacier melting caused by global warming and climate change has caused oceans to rise on an aver of one millimetre per year.

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