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umsonst.bsky.social
@umsonst.bsky.social
Earth-System Nerd
Interesting detail of atmospheric rivers (ARs) delivering warm and moist air to Antarctica

Sea ice near the Antarctic coast buffers ARs by reducing winds and moisture, weakening them before landfall
Vertical structure and surface impact of atmospheric rivers reaching antarctic sea ice and land
Recent extremes in Antarctic temperature, surface melt and sea ice loss have been robustly linked to the occurrence of atmospheric rivers (ARs). Howev…
www.sciencedirect.com
November 28, 2025 at 5:22 PM
This shit happens much faster than we ever imagined...

But as sea level rise does not affect billionaires or politicians they all give a fuck

At least so they think...
Another non-linear signal - this time a glacier literally disintegrated located on the Antarctic peninsular The Hektoria Glacier glacier exists behind ice shelves. Its protection had been the… | Jan ...
Another non-linear signal - this time a glacier literally disintegrated located on the Antarctic peninsular The Hektoria Glacier glacier exists behind ice shelves. Its protection had been the Larsson...
www.linkedin.com
November 28, 2025 at 12:46 AM
We observe a synchronization of feedbacks driven by circulation patterns as they couple stronger in a warmer climate all driven by warmer oceans that accumulate vast amounts of energy ever closer to the surface

Ain't a good idea to warm a water planet fast, actually quite idiotic

#climate #Earth
This would interest me: is the Matsuno Gill response over warmer (tropical) oceans intensifying? "The response of the atmosphere to sea surface temperature (SST) anomalies is a problem that has ...
This would interest me: is the Matsuno Gill response over warmer (tropical) oceans intensifying? "The response of the atmosphere to sea surface temperature (SST) anomalies is a problem that has been ...
www.linkedin.com
November 27, 2025 at 11:35 PM
All gyres move poleward - atmospheric circulation is pushed poleward and ocean circulation follows

"Poleward Shift of the Major Ocean Gyres Detected in a Warming Climate"; epic.awi.de/id/eprint/51...
November 27, 2025 at 9:36 PM
MHWs are on track to become also in 2025/26 extreme in the Southern Hemisphere

Would be another indication of a self reinforcing feedbacks

Mechanisms mostly clear now but to what extent self reinforcing?
Southern Hemisphere marine heatwave update | Jan Umsonst
Southern Hemisphere marine heatwave update
www.linkedin.com
November 27, 2025 at 4:28 PM
Reposted
Das geschah am 06.11.2025

#ClimateDaily #cr41w
November 26, 2025 at 1:32 PM
Oh no really, no shit?

Who would have thought that...
AI chatbots are encouraging conspiracy theories – new research
If you interact with chatbots about conspiracy theories, research shows you can can easily fall down the rabbit hole.
theconversation.com
November 26, 2025 at 1:37 PM
In the near term future it will become clear that we will have to reduce GHG levels with all we've got or we will be toast...

Feedbacks are now synchronizing of which several are vicious cycles which are mutually reinforcing...

One more jump to go...
"ETH researchers estimate the cost of removing 1 tonne of CO2 from the air in the year 2050 to be between 230 and 540 US dollars. This is twice as high as previous estimates"
"The cost of removing large quantities of CO2 from the air will fall in the medium term, but not as much as previously hoped.

This is the conclusion reached by @ethz.ch researchers on the basis of new calculations. Efforts to reduce carbon emissions should therefore continue at pace"
November 26, 2025 at 10:14 AM
Synchronization of feedbacks - Antarctic warming now joins the carnage...

The Southern Hemisphere will decide our future

Why?

It's a water planet whose climate is controlled by the oceans...

#climate #earth
All latitude bands were warmer than average over the last 6 months. This was particularly visible across the Arctic and Antarctic regions. 🔥

Plot shows zonal-mean temperature anomalies, where latitude = y-axis (not scaled by distance). GISTEMPv4 data using their 1951-1980 baseline.
November 26, 2025 at 10:11 AM
Southern Hemisphere marine heatwave update

Development the last days and same date last year

#climate #earth
November 25, 2025 at 4:10 PM
Reposted
ABSOLUTELY UNBELIEVABLE 28.4 IN RUSSIAN HIGHLANDS

28.4 Akthy 1000m asl November record
It's an absolute insanity
NEVER HAPPENED ANYWHERE IN RUSSIA SO LATE
Also MINS up 17C UNPRECEDENTED in Russia

Also 29.4 Carsamba, Turkey on The Black Sea November record
November 24, 2025 at 3:45 PM
Southern Hemisphere marine heatwave update

We have now several hot spots developing - would be a bit early to start for real

First 6 days ago, second from yesterday, and the last from last year...

#climate
November 24, 2025 at 4:19 PM
MHWs and their mechanisms leading to their formation and persistence are now taking over the North Pacific temperature trend with the PDO with its negative and positive phases being overruled...
Waited for that one: a study on the recent break down of the relationship between the SSTs and Pacific decadal oscillation in the North Pacific The SSTs in the North Pacific are now "controlled&...
Waited for that one: a study on the recent break down of the relationship between the SSTs and Pacific decadal oscillation in the North Pacific The SSTs in the North Pacific are now "controlled" by t...
www.linkedin.com
November 21, 2025 at 1:08 PM
Highly interesting changes in the tropospause height and temperature

Again a step wise trend change and recent acceleration

Further noteworthy is that seasonal regional changes can be extreme in temperature and height. Another indication that the curvature of the troposphere becomes "wobblier"...
#climate #earth | Jan Umsonst
Highly interesting changes in the tropospause height and temperature Also here step wise trend change and recent acceleration. Further noteworthy is that seasonal regional changes can be extreme in t...
www.linkedin.com
November 21, 2025 at 12:39 PM
Continuous rise of the tropopause in the Northern Hemisphere over 1980–2020

"Northern Hemisphere (NH) over 20°N to 80°N to reveal a continuous rise of H over 1980–2020. Over 2001–2020, H increases at 50 to 60 m/decade, which is comparable to the trend over 1980–2000.

#climate #Earth
Continuous rise of the tropopause in the Northern Hemisphere over 1980–2020
Continued rise of the tropopause after 2000 in the Northern Hemisphere is mainly due to tropospheric warming.
www.science.org
November 21, 2025 at 11:54 AM
Its a highly important aspect of El Ninos and La Ninas - the tropics expand or contract...

"Close to the tropics in the Pacific Ocean, this relates to a much lower tropopause height during La Niña, which corresponds to an apparent narrowing of the tropical belt."

#climate #Earth
Double Tropopauses and the Tropical Belt Connected to ENSO
Double tropopause characteristics and the connection to ENSO are analyzed using vertically high resolved GPS RO observations More double tropopauses are detected during the cold La Niña phase and l...
agupubs.onlinelibrary.wiley.com
November 21, 2025 at 9:54 AM
Climate warming is not only intensifying Weather events, but intensified W events intensify other Events even more

The result are extreme E of such an magnitude that they develop not a long lasting impact on the climate system

The faster we warm the climate the more non-linear the reaction will be
#climate #earth | Jan Umsonst
Weather is now becoming climate Climate and weather can't be seen separately. Climate intensifying weather is not a one way ticked. We realize now that it goes both way's. Climate intensifies single...
www.linkedin.com
November 20, 2025 at 8:14 PM
Reposted
My Chat (Rant) about the latest State of the Climate 2025 Report Release...
youtu.be/iyfMW0RltLU?...

#climate #ClimateCrisis #ClimateAction #ClimateScience #ClimateTech #weather #COP #COP30 #Belem #Brazil
My Chat (Rant) about the latest State of the Climate 2025 Report Released for COP30 in Brazil
YouTube video by Paul Beckwith
youtu.be
November 19, 2025 at 3:16 AM