A pair the studies paint a worrying photo of accelerating ice loss around the world, v serious after-effects for projections that sea level increase


A currently of meltwater cuts v the Greenland ice sheet. Ian Joughin

A new study find that earth lost 28 trillion tons of ice between 1994 and 2017, reports Chelsea Harvey for E&E News.

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In a clear illustration of climate change’s concerned acceleration, the rate at i m sorry our planet is shedding its ice skyrocketed from an average yearly loss of about 760 billion loads of ice in the 1990s to much more than 1.2 trillion lots per year in the 2010s, follow to the study published this mainly in the newspaper Cryosphere.

Human activities, which have warmed ours planet’s atmosphere and oceans by 0.47 degrees Fahrenheit and also 0.22 degrees Fahrenheit per decade since the 1980, respectively, drive the massive ice loss.

This study’s staggering full of shed ice is the first global assessment that accounts for the Greenland and Antarctic ice sheets, Arctic and also Antarctic sea ice, and also ice shed from hill glaciers the people over, follow to E&E News. Every told, the enormous loss of ice has raised an international sea levels by 1.3 inches since 1994.

“The ice sheets are now following the worst-case climate warming scenarios set out by the Intergovernmental panel on Climate readjust (IPCC),” states Thomas Slater, a climate researcher at the college of Leeds and also the Cryosphere study’s command author, in a statement. “Sea level climb on this scale will have really serious impacts on seaside communities this century.”

The IPCC’s approximates suggest that ice loss might raise sea level by as much as 16 inches by 2100.

A 2nd study, published previously this month in the newspaper Science Advances, argues that Earth’s ice cream loss is i can not qualify to stop accelerating, report chris Mooney and Andrew Freeman because that the Washington Post. The Science Advances paper finds 74 significant ocean-terminating glaciers in Greenland are being weakened from in ~ by intruding waters native warming seas.

“It’s favor cutting the feet turn off the glacier rather than melt the totality body,” Eric Rignot, a study co-author and a glacier researcher at NASA’s Jet Propulsion Laboratory and also the university of California at Irvine, tells the Post. “You melt the feet and also the body falls down, together opposed to melt the whole body.”

Speaking through the Post, Rignot claims the study’s outcomes suggest current estimates the sea level rise’s progression might be overly conservative. “As we peer below we realize this feedbacks space kicking in quicker than us thought,” he says.

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The worst-case scenario projected by the IPCC—the one that the Cryosphere study argues Earth is currently tracking—might not actually be the worst-case scenario. Instead, ice cream loss and also sea level rise can progress more rapidly than even the IPCC’s most pessimistic projections unless more is done to account for warmth ocean water undercutting glaciers choose the 74 in Greenland that the Science Advances record identifies. Per the Post, the IPCC’s next report is expected later this year.