| Global sea ice at an all-time minimum on 09:35 - Mar 6 with 682 views | NthQldITFC |
The divergence from the grouping through June to November for 2023 and 2024 seems to mirror (to some extent) the massive Sea Surface Temperature shifts we've seen over the last couple of years, which is strongly linked to the reduction of sulphide aerosols from shipping waste gases.
I guess it's a combination of the same direct mechanism causing the sea ice loss (through increased solar energy incidental on the ice) and accelerated melting due to higher SST? Either way it's frighteningly fast.
For those who don't know and who are concerned enough to read about Climate Change or, (not to pussyfoot about) the approaching Climate Catastrophe, polar albedo (how much light a surface reflects back into space rather than absorbed and converted to heat) is a positive feedback - positive being a bad adjective in this sense.
https://en.wikipedia.org/wiki/Climate_change_feedbacks#Surface_albedo_feedback_(
Sea ice loss might not be a tipping point in itself, but it reflects (no pun intended) a polar environment which is warming much faster than lower latitudes and the accelerating loss of the Greenland and Antarctic ice sheets certainly are tipping points.
https://en.wikipedia.org/wiki/Tipping_points_in_the_climate_system#Tipping_point
Cascading tipping points are what is going to kill us, not slow growth or the inability to consume exactly what we want to.
'A 2021 study with three million computer simulations of a climate model showed that nearly one-third of those simulations resulted in domino effects, even when temperature increases were limited to 2 °C (3.6 °F) – the upper limit set by the Paris Agreement in 2015.[10][138] The authors of the study said that the science of tipping points is so complex that there is great uncertainty as to how they might unfold, but nevertheless, argued that the possibility of cascading tipping points represents "an existential threat to civilisation".'
- https://en.wikipedia.org/wiki/Tipping_points_in_the_climate_system#Cascading_tip |  |
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| Global sea ice at an all-time minimum on 11:57 - Mar 6 with 583 views | NthQldITFC |
From the Copper-Knickers page, it's interesting to see that in terms of air temperatures, North America, the Middle East, Eastern Europe, parts of Russia and China are the only places which seem to have cooled down over the last twenty years.
Odd, given that those places are the homes of warmongers, war zones and planet ravaging fossil fuel users. (the first ones are possibly a bit unfair on China!) | |
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| Global sea ice at an all-time minimum on 11:59 - Mar 6 with 575 views | Reuser_is_God |
Good news for The Titanic |  |
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| Global sea ice at an all-time minimum on 12:04 - Mar 6 with 569 views | NthQldITFC |
| Global sea ice at an all-time minimum on 11:59 - Mar 6 by Reuser_is_God |
Good news for The Titanic |
A very apt metaphor for humanity's response to the science with which it has been presented for forty years or more. | |
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| Global sea ice at an all-time minimum on 12:36 - Mar 6 with 525 views | CoachRob |
| Global sea ice at an all-time minimum on 09:35 - Mar 6 by NthQldITFC |
The divergence from the grouping through June to November for 2023 and 2024 seems to mirror (to some extent) the massive Sea Surface Temperature shifts we've seen over the last couple of years, which is strongly linked to the reduction of sulphide aerosols from shipping waste gases.
I guess it's a combination of the same direct mechanism causing the sea ice loss (through increased solar energy incidental on the ice) and accelerated melting due to higher SST? Either way it's frighteningly fast.
For those who don't know and who are concerned enough to read about Climate Change or, (not to pussyfoot about) the approaching Climate Catastrophe, polar albedo (how much light a surface reflects back into space rather than absorbed and converted to heat) is a positive feedback - positive being a bad adjective in this sense.
https://en.wikipedia.org/wiki/Climate_change_feedbacks#Surface_albedo_feedback_(
Sea ice loss might not be a tipping point in itself, but it reflects (no pun intended) a polar environment which is warming much faster than lower latitudes and the accelerating loss of the Greenland and Antarctic ice sheets certainly are tipping points.
https://en.wikipedia.org/wiki/Tipping_points_in_the_climate_system#Tipping_point
Cascading tipping points are what is going to kill us, not slow growth or the inability to consume exactly what we want to.
'A 2021 study with three million computer simulations of a climate model showed that nearly one-third of those simulations resulted in domino effects, even when temperature increases were limited to 2 °C (3.6 °F) – the upper limit set by the Paris Agreement in 2015.[10][138] The authors of the study said that the science of tipping points is so complex that there is great uncertainty as to how they might unfold, but nevertheless, argued that the possibility of cascading tipping points represents "an existential threat to civilisation".'
- https://en.wikipedia.org/wiki/Tipping_points_in_the_climate_system#Cascading_tip |
Excellent Stuff.
The Hansen group have put forward their argument on aerosols among other things in this recent paper.
https://www.tandfonline.com/doi/full/10.1080/00139157.2025.2434494#d1e1468
Hansen et al. describe an Amoc shutdown as "a point of no return"
If you contrast that with economists who find surface albedo feedbacks and Amoc shutdown would have a positive impact on the global economy. This was a meta-analysis of all the 'research' done by climate economists.
https://www.pnas.org/doi/10.1073/pnas.2103081118?url_ver=Z39.88-2003&rfr_id=
"AMOC slowdown benefits Europe, while parts of central Asia see increased climate damages."
"Tipping points reduce global consumption per capita by around 1% upon 3C warming and by around 1.4% upon 6C warming, based on a second-order polynomial fit of the data. In some runs, damages exceed 4%.
Refereed by other economists, they don't want climate scientists to referee their work, can't imagine why, this nonsense gets pick up by people in finance and included in their models. All tipping points at 6C of warming causes 1.4% reduction in consumption from what it would have been in the absence of climate change calculated using a smooth function. Total madness.
If people want to learn about tipping points then the Global Tipping Points report is the scientists' evaluation.
https://global-tipping-points.org/resources-gtp/ |  | | |
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