Climate, melting ice and sea level

[izentrop]

http://7emechance.over-blog.com/

[Christophe]

For those who want to simulate: climate-change-co2 / part-to-the-competition-simulator de Montee des eaux-seas-oceans-t15806.html

Bin what, we can also simulate, we men!

ps: it's creepy acceleration of the melting of the arctic these 5 last years ...

[moinsdewatt]

Melting ice in Greenland quadrupled in ten years

AFP the 22 Jan 2019

2003 and 2013 have seen four-fold increase in melting ice in Greenland, which has led to rising sea levels, and can now be seen in larger areas of the vast arctic island, scientists said Tuesday.

"In 2003, 111 km3 of ice per year disappeared, ten years later this figure was almost four times higher, reaching 428 km3 per year", underlined in a press release the DTU Space Lab of the Technical Institute of Denmark.

Its researchers participated in a study on ice mass changes in Greenland, published in the Proceedings of the American Academy of Sciences (PNAS). They found "significant and surprising changes in the pattern of ice melting," said DTU Space Lab official Shfaqat Abbas Khan, quoted in the statement. Until now, it was mostly the ice sheet that was melting, mainly in the glaciers of northwest and southeast Greenland.

This melting is explained by the increase in terrestrial temperatures and, in part, by contact with increasingly warm seawater. The new study shows that the ice is also melting in the southwest of the island and that this melting is accelerated by the increase in Earth's temperatures. "As the temperature of the atmosphere rises, we will immediately see an increase in the melting," Khan said.

The melting of the Greenland ice cap partly explains the rise in the sea level, but Antarctica could become the main engine. The melting ice is there faster than ever and its pace should lead to a disastrous rise in this level in the coming years, warned scientists in a study published mid-January.

https://www.connaissancedesenergies.org ... e-190122-0

[moinsdewatt]

Ah, the winter spike for the Arctic has passed.

http://nsidc.org/data/seaice_index/imag ... series.png

Still in the low limit of +/- 2 sigma.

[Christophe]

[Christophe]

2 billion TONS of ice melted in 1 day this month of June 2019 because of an increase of "only" 4,5 ° C ...

[Christophe]

We have to hope that 2019 will be an "exceptional" year:



Otherwise the extinction forecast of humanity on the 2050 horizon may well be true ...

[izentrop]

Are you trying to make us more flippant by not showing the 2002 curve?

[Christophe]

Indeed, maieuh it's not me it's him!

ps: 2019 still exceeds 2002 ... for the month of June ...

[moinsdewatt]

Iceland to erect "first monument in honor of a disappeared glacier"
Nearly half of World Heritage sites could lose their glaciers by 2100 if greenhouse gas emissions continue at the current rate.

The World with AFP 22 July 2019

It is a disappearance that left no one ice: in 2014, Iceland saw Okjökull faint, the first glacier to disappear because of global warming. The ice, which still covered 16 km2 surface 1890, had shrunk to a trickle: 0,7 km2 2012, according to surveys of the University of Iceland.

To commemorate this disastrous premiere on the island, a commemorative plaque will be inaugurated at the 18 August on the site of the former glacier by Icelandic researchers and Rice University in the United States, at the initiative of the project, a- did we learn Monday 22 July.

"This will be the first monument to a glacier that has been lost to climate change around the world," said Cymene Howe, a professor of anthropology at Rice University, in a statement. "By marking the death of the Ok, we hope to draw attention to what is lost as the glaciers of the Earth disappear," adds the anthropologist.

With this plaque in gold letters titled in Icelandic and English "A letter for the future", researchers hope to raise awareness of the decline of glaciers and the effects of climate change.

"All of our glaciers should have the same fate in the next 200 years. This monument testifies that we know what is happening and what needs to be done. Only you know if we did it, "says the plaque to future generations. It also bears the mention "415 ppm CO2", in reference to the record level of carbon dioxide concentration recorded in the atmosphere last May.


The commemorative plaque will be inaugurated on August 18. Dominic Boyer / Cymene Howe

"To have glacier status, its mass of ice and snow must be thick enough to move with its own weight," 40 50 meters thick, to produce enough pressure to make the ice malleable ice, explains the geologist Oddur Sigurdsson to AFP.

According to a study by the International Union for the Conservation of Nature (IUCN) published in April, nearly half of World Heritage sites could lose their glaciers by 2100 if greenhouse gas emissions continue in the near future. current pace.

https://www.lemonde.fr/planete/article/ ... _3244.html