Meta & Fysikken: Afsnit 63: Klima. Polerne smelter!
Denne gang giver vi en opdatering på den globale opvarmning, inklusive smeltende poler. Det er ikke for tøsedrenge!
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Karina’s noter til afsnittet:
1: Rekord høje temp over polerne
BREAKING: simultaneous freakish heat in the Arctic and Antarctic described as 'impossible' and 'unthinkable' by scientists as abrupt climate change accelerates wildly
https://twitter.com/climateben/status/1505174972121165833?s=21
En masse links i tråden og en hel del alarm!
Antarctica's heatwave was driven by a slow, intense high pressure system located southeast of Australia, which carried vast amounts of warm air and moisture deep into Antarctica's interior. It was coupled with a very intense low pressure system over the east Antarctic interior.
To make matters worse, cloud cover over the Antarctic ice plateau trapped heat radiating from the surface.
A similar weather pattern occurred last week in the Arctic. An intense low pressure system began forming off the north-east coast of the United States. An atmospheric river formed at its junction with an adjacent high pressure system.
This weather pattern funneled warm air into the Arctic circle. Svalbald, in Norway, recorded a new maximum temperature of 3.9°C.
Extraordinary anomalies in #Antarctica lead to historic records today:
-Vostok 3489m -17.7C,monthly record beaten by nearly 15C !
-Concordia 3234m -12.2C,highest Temp. on records and about 40C above average !
-Dome C II 3250m -10.1C
-D-47 1560m -3.3C
-Terra Nova Base 74S +7.0C
1.5: Jeg delte den lille gif paa vores facebook side
2: Permafrost smelter hurtigere. https://phys.org/news/2022-03-permafrost-faster-due-extreme-summer.html
In the past 50 years, the Arctic region has been warming three times faster than the average rate of global warming. This warming thaws the permafrost, the permanently frozen Arctic soil. New research published in Nature Communications has revealed that extreme summer rainfall is accelerating this process. As extreme rainfall events become more frequent thanks to a warmer climate, the permafrost may thaw even faster than under the influence of rising temperatures alone.
March 1 (Reuters) - For climate scientists reviewing a Pacific Ocean temperature forecast map in November, a bright red, sideways "V", thousands of kilometres long signalled disaster.
Combined with La Nina cooling in the central and eastern Pacific, the V-shaped pattern of warm sea water, stretching from Australia's east coast to the Philippines and back over the ocean north of Hawaii, indicated that halfway around the world in the Horn of Africa the upcoming March-May rainy season would likely fail.
The scientists' organization, called Famine Early Warning System Network or FEWS Net, sent out an alert with U.N., EU and African institutions, saying the "unprecedented" drought would likely "cause a perilous and disruptive humanitarian disaster".
If the warning is born out, it could push the region into its worst drought on record. Millions of people would struggle to feed themselves.
3: Klimarapporten
https://www.ipcc.ch/report/sixth-assessment-report-working-group-ii/
28.02.2022 Vi er nu paa 1.1°C over normal. Even limiting global warming to 1.5 degrees C is not safe for all.
Her er en delrapport for Europa:
https://www.ipcc.ch/report/ar6/wg2/downloads/outreach/IPCC_AR6_WGII_FactSheet_Europe.pdf
https://www.wri.org/insights/ipcc-report-2022-climate-impacts-adaptation-vulnerability
The newest report from the Intergovernmental Panel on Climate Change (IPCC) paints a troubling picture: Climate change is already impacting every corner of the world, and much more severe impacts are in store if we fail to halve greenhouse gas emissions this decade and immediately scale up adaptation.
UN Secretary-General Antonio Guterres called the report "an atlas of human suffering and a damning indictment of failed climate leadership."
Even if the world rapidly decarbonizes, greenhouse gases already in the atmosphere and current emissions trends will make some very significant climate impacts unavoidable through 2040.