How Antarctica’s Tipping Points can Cascade and Destabilize our Overall Global Climate System Please donate to PaulBeckwith.net to support my research and videos joining the dots on abrupt climate system mayhem. Happy Holidays!! Antarctica's tipping points threaten global climate stability by University of Tasmania "What happens in Antarctica doesn't stay in Antarctica. Its future will shape the future of the planet." phys.org/news/2024-12-antarctica-threaten-global-climate-stability.html The Thermohaline Ocean Circulation A Brief Fact Sheet - by Stefan Rahmstorf www.pik-potsdam.de/~stefan/thc_fact_sheet.html Phys.org article: Double dip: Antarctic sea ice sinks to new low for winter by Australian Antarctic Program Partnership (AAPP) phys.org/news/2024-09-dip-antarctic-sea-ice-winter.html National Snow and Ice Data Centre (NSIDC) article: 2024 Antarctic sea ice maximum extent finishes at second lowest On September 19, 2024, Antarctic sea ice stalled out at an annual maximum extent of 17.16 million square kilometers (6.63 million square miles), the second lowest maximum in the satellite record that began in 1979 (Figure 1a). This year’s maximum is 200,000 square kilometers (77,000 square miles) above the previous record low set in 2023. It is 1.55 million square kilometers below (598,000 square miles) below the 1981 to 2010 average Antarctic maximum extent. Sea ice extent is markedly below average in the Indian Ocean. Extent is above average stretching out of the Amundsen Sea. This sea ice pattern is similar to last year’s record low. nsidc.org/sea-ice-today/analyses/2024-antarctic-sea-ice-maximum-extent-finishes-second-lowest#:~:text=On%20September%2019%2C%202024%2C%20Antarctic,in%201979%20(Figure%201a). Wikipedia page on Antarctic Krill: en.wikipedia.org/wiki/Antarctic_krill Antarctic Krill are the vital species surrounding Antarctica that are responsible for the huge carbon sink in the Southern Oceans. They really deserve their own separate video!!! Map of Bathymetry (Ocean depths) around Antarctica. www.davidrumsey.com/luna/servlet/workspace/handleMediaPlayer?qvq=&trs=&mi=&lunaMediaId=RUMSEY~8~1~340022~90108172&widgetFormat=simple Peer reviewed paper published online in Ambio on December 10th, 2024 Title: Cascading tipping points of Antarctica and the Southern Ocean Abstract Antarctica and the Southern Ocean are key elements in the physical and biological Earth system. Human-induced climate change, and other human activities in the region, are leading to several potential interacting tipping points with major and irreversible consequences. Here, we examine eight potential physical, biological, chemical, and social Antarctic tipping points. These include ice sheets, ocean acidification, ocean circulation, species redistribution, invasive species, permafrost melting, local pollution, and the Antarctic Treaty System. We discuss the nature of each potential tipping point, its control variables, thresholds, timescales, and impacts, and focus on the potential for cumulative and cascading effects as a result of their interactions. The analysis provides substantial evidence of the need for more concerted and rapid action to limit climate change and to minimize the impacts of local human activities to avoid these cascading tipping points. Keywords Antarctic treaty system Earth system Ecosystem services Interacting tipping points Ocean circulation Sea ice Link: doi.org/10.1007/s13280-024-02101-9 Please donate to PaulBeckwith.net to support my research and videos joining the dots on abrupt climate system mayhem. Happy Holidays!! I am hoping to do many more videos over the holidays, to keep people up to speed on abrupt climate system changes (and on many other topics as well, like China:)
Nice presentation, thanks, Paul. For a comprehensive, commom sense, big picture run down of where were at and how we arrived at this dark point in history, check out Andrea P, Post-Doom Primer.
Many Thanks Paul ive always found Krill to be fascinating..as you said a keystone species with Whales,fish of all kinds and all different species of which Krill is their food source..Interesting about their carbon sink properties with their shells and feces containing carbon which i did not know about..very cool Paul thank you!!
How Antarctica’s Tipping Points can Cascade and Destabilize our Overall Global Climate System
Please donate to PaulBeckwith.net to support my research and videos joining the dots on abrupt climate system mayhem.
Happy Holidays!!
Antarctica's tipping points threaten global climate stability
by University of Tasmania
"What happens in Antarctica doesn't stay in Antarctica. Its future will shape the future of the planet."
phys.org/news/2024-12-antarctica-threaten-global-climate-stability.html
The Thermohaline Ocean Circulation
A Brief Fact Sheet - by Stefan Rahmstorf
www.pik-potsdam.de/~stefan/thc_fact_sheet.html
Phys.org article:
Double dip: Antarctic sea ice sinks to new low for winter
by Australian Antarctic Program Partnership (AAPP)
phys.org/news/2024-09-dip-antarctic-sea-ice-winter.html
National Snow and Ice Data Centre (NSIDC) article:
2024 Antarctic sea ice maximum extent finishes at second lowest
On September 19, 2024, Antarctic sea ice stalled out at an annual maximum extent of 17.16 million square kilometers (6.63 million square miles), the second lowest maximum in the satellite record that began in 1979 (Figure 1a). This year’s maximum is 200,000 square kilometers (77,000 square miles) above the previous record low set in 2023. It is 1.55 million square kilometers below (598,000 square miles) below the 1981 to 2010 average Antarctic maximum extent. Sea ice extent is markedly below average in the Indian Ocean. Extent is above average stretching out of the Amundsen Sea. This sea ice pattern is similar to last year’s record low.
nsidc.org/sea-ice-today/analyses/2024-antarctic-sea-ice-maximum-extent-finishes-second-lowest#:~:text=On%20September%2019%2C%202024%2C%20Antarctic,in%201979%20(Figure%201a).
Wikipedia page on Antarctic Krill:
en.wikipedia.org/wiki/Antarctic_krill
Antarctic Krill are the vital species surrounding Antarctica that are responsible for the huge carbon sink in the Southern Oceans. They really deserve their own separate video!!!
Map of Bathymetry (Ocean depths) around Antarctica.
www.davidrumsey.com/luna/servlet/workspace/handleMediaPlayer?qvq=&trs=&mi=&lunaMediaId=RUMSEY~8~1~340022~90108172&widgetFormat=simple
Peer reviewed paper published online in Ambio on December 10th, 2024
Title: Cascading tipping points of Antarctica and the Southern Ocean
Abstract
Antarctica and the Southern Ocean are key elements in the physical and biological Earth system.
Human-induced climate change, and other human activities in the region, are leading to several potential interacting tipping points with major and irreversible consequences. Here, we examine eight potential physical, biological, chemical, and social Antarctic tipping points. These include ice sheets, ocean acidification, ocean circulation, species redistribution, invasive species, permafrost melting, local pollution, and the Antarctic Treaty System. We discuss the nature of each potential tipping point, its control variables, thresholds, timescales, and impacts, and focus on the potential for cumulative and cascading effects as a result of their interactions. The analysis provides substantial evidence of the need for more concerted and rapid action to limit climate change and to minimize the impacts of local human activities to avoid these cascading tipping points.
Keywords Antarctic treaty system Earth system
Ecosystem services Interacting tipping points
Ocean circulation Sea ice
Link: doi.org/10.1007/s13280-024-02101-9
Please donate to PaulBeckwith.net to support my research and videos joining the dots on abrupt climate system mayhem.
Happy Holidays!! I am hoping to do many more videos over the holidays, to keep people up to speed on abrupt climate system changes (and on many other topics as well, like China:)
appreciate your work Paul
Hangin in there, Paul 🙂👍 Thanks for keepin it on point.
Hey Paul thank you🤠 still waiting on a real freeze this year. Always happens by halloween🙀 still waiting🤯
Oops OKC Ok🇺🇲
I want to visit tazmania. Heard it's clean there❤
Here in WA state we're miles from a freeze...mostly in the 47 - 53 F range, even during nights. February is typically our coldest month.
Nice presentation, thanks, Paul. For a comprehensive, commom sense, big picture run down of where were at and how we arrived at this dark point in history, check out Andrea P, Post-Doom Primer.
Many Thanks Paul ive always found Krill to be fascinating..as you said a keystone species with Whales,fish of all kinds and all different species of which Krill is their food source..Interesting about their carbon sink properties with their shells and feces containing carbon which i did not know about..very cool Paul thank you!!
Greenwashing, calling Methane "natural gas" is like calling coal "natural coal".
It’s Tipped Over.
😕
Thankfully Antarctic ice extent and area has now reached the 30 year multi decadal average. So according to the data, no ice loss for almost 40 years.
""Thankfully"" Christians lie like hell😂😂
This will focus on the thermohaleine system - but not just the Atlantic Meridional Overturning bit? Pacific and Indian Oceans get a look in? 😊
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