Quantcast

'We Should Be Retreating Already From the Coastline,' Scientist Suggests After Finding Warm Waters Below Greenland

Climate
The Eqip Sermia Glacier is seen behind a moraine left exposed by the glacier's retreat during unseasonably warm weather on Aug. 1 at Eqip Sermia, Greenland. Sean Gallup / Getty Images

Editor's Note: This article includes a quote from Josh Willis, NASA oceanographer: "There is enough ice in Greenland to raise the sea levels by 7.5 meters, that's about 25 feet, an enormous volume of ice, and that would be devastating to coastlines all around the planet," said Josh Willis, a NASA oceanographer, to CNN. "We should be retreating already from the coastline if we are looking at many meters [lost] in the next century or two." In 2019, a NASA study found, "In the scenario with no reduction of emissions, the study found that the entire Greenland Ice Sheet will likely melt in a millennium, causing 17 to 23 feet of sea level rise." That report also states, "In the next 200 years, the ice sheet model shows that melting at the present rate could contribute up to 63 inches to global sea level rise, said the team led by scientists at the Geophysical Institute at the University of Alaska Fairbanks." It appears Willis's quote is accurate in terms of sea levels rising, but attributed it to a faster timeline than the NASA report.


Andrew Yang's assertion that people move away from the coast at the last Democratic debate is the completely rational and correct choice for NASA scientists in Greenland.

"There is enough ice in Greenland to raise the sea levels by 7.5 meters, that's about 25 feet, an enormous volume of ice, and that would be devastating to coastlines all around the planet," said Josh Willis, a NASA oceanographer, to CNN. "We should be retreating already from the coastline if we are looking at many meters [lost] in the next century or two."


Willis and his research team at NASA's Ocean Melting Greenland have been seeing some alarming patterns as they jet around the island's coastline since heat waves bore down on the U.S. and Europe at the end of July, as CNN reported. Not only is the surface temperature warmer, turning Greenland into a slush-filled mess, but the ocean temperature deep under the water is also rising. The warming water eats away at the foundation of the glaciers, meaning Greenland's massive ice sheet is getting weaker at the top and the bottom, which spells trouble for the entire world.

"Greenland has impacts all around the planet. A billion tons of ice lost here raises sea levels in Australia, in Southeast Asia, in the United States, in Europe," said Willis to CNN. "We are all connected by the same ocean."

The scientists looking at the ice and waters found a large opening of water near Helheim glacier, a huge 4-mile glacier on Greenland's east coast, that had warm water along its entire depth, more than 2,000 feet below the surface, as CNN reported.

"It's very rare anywhere on the planet to see 700 meters of no temperature variation, normally we find colder waters in the upper hundred meters or so, but right in front of the glacier it's warm all the way up," said Ian Fenty, a climate scientist at NASA, to CNN. "These warm waters now are able to be in direct contact with the ice over its entire face, supercharging the melting."

Helheim has made news the past two summers. Two years ago it lost a huge 2-mile piece. Last summer a chunk the size of lower Manhattan broke off and was captured on video, as National Geographic reported.

This year the glacier has continued to melt.

"It retreats by many meters per day, it's tens of meters per day. You can probably set your iPhone on timelapse and actually see it go by," said Willis to CNN.

The ice in Greenland started the summer weak. There was little snowfall this past winter to reinforce the ice or to absorb the sunlight in the peak of summer, when the sun never fully goes down. Fresh snow stays bright and reflective, which bounces away solar radiation. Older snow is less reflective and absorbs the sun's heat. When the first heat wave hit in June, 45 percent of Greenland's ice sheet was ready to melt, according to National Geographic.

Arctic ice like Greenland's is also vital to removing carbon from the atmosphere, according to a study in the journal Polar Biology. The calcium carbonate crystals that make up sea ice trap carbon dioxide in a cold brine. When the sea ice melts, it drops that carbon dioxide into the ocean where it binds to algae, which stops it from circulating around the atmosphere.

As sea ice decreases, less carbon will be removed from the atmosphere. Plus, the melting ice will raise sea levels. Glaciers like Helheim are big enough to make global sea levels rise by one millimeter in just one month, which concerns scientists, as CNN reported.

EcoWatch Daily Newsletter

A vegan diet can improve your health, but experts say it's important to keep track of nutrients and protein. Getty Images

By Dan Gray

  • Research shows that 16 weeks of a vegan diet can boost the gut microbiome, helping with weight loss and overall health.
  • A healthy microbiome is a diverse microbiome. A plant-based diet is the best way to achieve this.
  • It isn't necessary to opt for a strictly vegan diet, but it's beneficial to limit meat intake.

New research shows that following a vegan diet for about 4 months can boost your gut microbiome. In turn, that can lead to improvements in body weight and blood sugar management.

Read More Show Less
Students gathered at the National Mall in Washington DC, Sept. 20. NRDC

By Jeff Turrentine

Nearly 20 years have passed since the journalist Malcolm Gladwell popularized the term tipping point, in his best-selling book of the same name. The phrase denotes the moment that a certain idea, behavior, or practice catches on exponentially and gains widespread currency throughout a culture. Having transcended its roots in sociological theory, the tipping point is now part of our everyday vernacular. We use it in scientific contexts to describe, for instance, the climatological point of no return that we'll hit if we allow average global temperatures to rise more than 2 degrees Celsius above preindustrial levels. But we also use it to describe everything from resistance movements to the disenchantment of hockey fans when their team is on a losing streak.

Read More Show Less
Sponsored
samael334 / iStock / Getty Images

By Ruairi Robertson, PhD

Berries are small, soft, round fruit of various colors — mainly blue, red, or purple.

Read More Show Less
A glacier is seen in the Kenai Mountains on Sept. 6, near Primrose, Alaska. Scientists from the U.S. Geological Survey have been studying the glaciers in the area since 1966 and their studies show that the warming climate has resulted in sustained glacial mass loss as melting outpaced the accumulation of new snow and ice. Joe Raedle / Getty Images

By Mark Mancini

On Aug. 18, Iceland held a funeral for the first glacier lost to climate change. The deceased party was Okjökull, a historic body of ice that covered 14.6 square miles (38 square kilometers) in the Icelandic Highlands at the turn of the 20th century. But its glory days are long gone. In 2014, having dwindled to less than 1/15 its former size, Okjökull lost its status as an official glacier.

Read More Show Less
Members of Chicago Democratic Socialists of America table at the Logan Square Farmers Market on Aug. 18. Alex Schwartz

By Alex Schwartz

Among the many vendors at the Logan Square Farmers Market on Aug. 18 sat three young people peddling neither organic vegetables, gourmet cheese nor handmade crafts. Instead, they offered liberation from capitalism.

Read More Show Less
Sponsored
StephanieFrey / iStock / Getty Images

By Lauren Panoff, MPH, RD

Muffins are a popular, sweet treat.

Read More Show Less
Hackney primary school students went to the Town Hall on May 24 in London after school to protest about the climate emergency. Jenny Matthews / In Pictures / Getty Images

By Caroline Hickman

Eco-anxiety is likely to affect more and more people as the climate destabilizes. Already, studies have found that 45 percent of children suffer lasting depression after surviving extreme weather and natural disasters. Some of that emotional turmoil must stem from confusion — why aren't adults doing more to stop climate change?

Read More Show Less
Myrtle warbler. Gillfoto / Flickr / CC BY-SA 2.0

Bird watching in the U.S. may be a lot harder than it once was, since bird populations are dropping off in droves, according to a new study.

Read More Show Less