17 billion tons of ice melted in Greenland on Tuesday and Thursday this week. The Danish tracking service Polar Portal calls it a big meltdown.
Temperatures of about 20 degrees have been reported in recent days Defender.
Cicero’s researcher, Maria Sand, tells DocPlade that these are dazzling figures. He explains that the mass balance of Greenland ice can be compared to a bank account.
– In winter it receives money in the form of ice, and in summer it spends money in the form of melting ice. By the end of the year, you should see if it has gone to zero, Sand adds:
The problem is, you could say that in recent decades it has gone red and the financial crisis is approaching. This means the melting periods have become longer, so more snow and ice will melt each year. It is also hot, meaning the ice below is melting.
– Doesn’t look good
So far this year, 100 billion tons of ice have melted on the Arctic island, much less than the record year 2019, but the melting is taking place over a large area, the overview shows Polar portal.
On Tuesday, 8.5 billion tons of ice melted from the surface, but lost another 8.4 billion tons on Thursday. According to The Guardian, Tuesday’s melting was enough to cover the state of Florida with five centimeters of water.
Sand explains that high temperatures directly contribute to the melting of sea ice and sea level rise. The researcher explains that this can have many effects, such as altering ocean currents, and that it can also affect wildlife that lives off the ice.
– This is one of the biggest melts you’ve ever seen. It’s too big, it doesn’t look good, she says.
He explains that sea levels are estimated to rise by 3.7 to 22.4 centimeters over the next 70-80 years., From melting only Greenland ice. How much it melts depends on how much CO we are going to release.
The rule of thumb is that as sea levels rise by every inch, a further six million people in coastal areas will be affected by flooding, the researcher says.
– We have started a train that we can not stop. If all the ice in Greenland had melted, sea levels would have risen by seven meters, but it would have taken thousands of years, he says.
– Pushing the environment
In 2019, Greenland lost 500 billion tons of ice and melting water, which contributed 40 percent to sea level rise that year, mostly in the same year since satellite registration began in 1978.
– Greenland now has higher temperatures and higher pressures. There is a lot of melting ice, so a lot will come out. It pushes the whole ecosystem, says Sand.
He explains that the Arctic is warming twice as fast as the rest of the world, so it significantly affects the melting of ice.
When ice melts, it can affect humans and wildlife in Greenland.
NTNU researcher, Bjørn Munro Jenssen, is an expert on wildlife in the Arctic. He explains that as sea ice melts, many different animal species move northward.
Threatens polar bears
If both seals and whales disappear from Greenland, the food of polar bears will also disappear. Then they have to go north.
– If polar bears do not find their food in the sea, they will have to go ashore to find food. Then they have to find the most difficult alternative prey to hunt, i.e. various bird species, musk and reindeer. They often come to the Eder colonies and can eat all the eggs in the colonies. Sometimes they come to cities and towns. There are a lot of problems seen in Canada, but increasingly in Svalbard, Jensen says with Dopplet.
He further explains that the ecosystem in Greenland has been changing in recent years. For example, there was more mackerel on the east coast, which attracted killer whales.
The researcher says it will be very difficult for people and Inuit in Greenland to hunt both whales and seals, which have a long tradition in Greenland.