Thomas Boettcher
@thomas-boettcher.bsky.social
collecting #PlanetaryBoundaries data.
#climate is a feedback structure.
#biodiversity #PFAS
engineer applied physics
318ppm=677GtC
600+300GtC
https://www.facebook.com/profile.php?id=100014586580860
https://www.youtube.com/@gautingmusik9561
#climate is a feedback structure.
#biodiversity #PFAS
engineer applied physics
318ppm=677GtC
600+300GtC
https://www.facebook.com/profile.php?id=100014586580860
https://www.youtube.com/@gautingmusik9561
Pinned
#0S.1d BlueSky thread 0S
0=overpopulation 8.2bn humans
1=climate 3W/m² +C-pollution 422ppm +CH4
2=biosphere +extinction
3=land use -1%soil lost/a
4= N P
5= plastic, nuclear waste, Pestizid 350_000 chemicals
6=green+blue+water
7=ocean: look for new variables
8=aerosols PFAS
9=ozone hole is back
0=overpopulation 8.2bn humans
1=climate 3W/m² +C-pollution 422ppm +CH4
2=biosphere +extinction
3=land use -1%soil lost/a
4= N P
5= plastic, nuclear waste, Pestizid 350_000 chemicals
6=green+blue+water
7=ocean: look for new variables
8=aerosols PFAS
9=ozone hole is back
Reposted by Thomas Boettcher
The Climate 8-ball is considering its options.
November 24, 2025 at 3:28 PM
The Climate 8-ball is considering its options.
Reposted by Thomas Boettcher
It has made *exactly no discernable difference*, nearly a decade on:
November 24, 2025 at 8:20 AM
It has made *exactly no discernable difference*, nearly a decade on:
Reposted by Thomas Boettcher
Unfortunately I don't see much evidence of the Paris agreement resulting in significant reduction in GHG emissions.
I have yet to see an attribution study of a relative decrease of CO₂ emissions from SSP5-8.5. E.g. correcting for COVID and the energy wars.
Collision is practically unavoidable:
I have yet to see an attribution study of a relative decrease of CO₂ emissions from SSP5-8.5. E.g. correcting for COVID and the energy wars.
Collision is practically unavoidable:
November 23, 2025 at 10:18 PM
Unfortunately I don't see much evidence of the Paris agreement resulting in significant reduction in GHG emissions.
I have yet to see an attribution study of a relative decrease of CO₂ emissions from SSP5-8.5. E.g. correcting for COVID and the energy wars.
Collision is practically unavoidable:
I have yet to see an attribution study of a relative decrease of CO₂ emissions from SSP5-8.5. E.g. correcting for COVID and the energy wars.
Collision is practically unavoidable:
Reposted by Thomas Boettcher
Die von Donald Trump, dem russischen Botschafter in Washington als Friedensplan kaschierte Unterwerfungsaufforderung der USA und Russlands an die Ukraine ist zugleich eine Kriegserklärung an Europa, denn mit diesem Papier endet wie damals mit dem Hitler-Stalin Pakt die regelbasierte Weltordnung.
November 23, 2025 at 11:15 AM
Die von Donald Trump, dem russischen Botschafter in Washington als Friedensplan kaschierte Unterwerfungsaufforderung der USA und Russlands an die Ukraine ist zugleich eine Kriegserklärung an Europa, denn mit diesem Papier endet wie damals mit dem Hitler-Stalin Pakt die regelbasierte Weltordnung.
Reposted by Thomas Boettcher
Another month of NASA CERES satellite data and it's only getting worse!
0.11 W/m² added to the 4-year average Net-flux increase over the North Pacific.
Absorbed Solar Radiation is almost 5W/m² higher than at the start of the century.
All added greenhouse gases since 1750 cause a 4.1 W/m² forcing
0.11 W/m² added to the 4-year average Net-flux increase over the North Pacific.
Absorbed Solar Radiation is almost 5W/m² higher than at the start of the century.
All added greenhouse gases since 1750 cause a 4.1 W/m² forcing
November 22, 2025 at 4:08 PM
Another month of NASA CERES satellite data and it's only getting worse!
0.11 W/m² added to the 4-year average Net-flux increase over the North Pacific.
Absorbed Solar Radiation is almost 5W/m² higher than at the start of the century.
All added greenhouse gases since 1750 cause a 4.1 W/m² forcing
0.11 W/m² added to the 4-year average Net-flux increase over the North Pacific.
Absorbed Solar Radiation is almost 5W/m² higher than at the start of the century.
All added greenhouse gases since 1750 cause a 4.1 W/m² forcing
Reposted by Thomas Boettcher
Sunday 11/23 at 10am PT on Climate Chat: 3 Climate Truths Everyone Must Know w/ hosts Dan Miller & @leonsimons.bsky.social.
#ClimateCrisis #ClimateAction
@bikingmzstacey.bsky.social @radsci.bsky.social
youtube.com/live/xn4Zr2E...
#ClimateCrisis #ClimateAction
@bikingmzstacey.bsky.social @radsci.bsky.social
youtube.com/live/xn4Zr2E...
3 Climate Truths Everyone Must Know
YouTube video by Climate Chat
youtube.com
November 22, 2025 at 7:58 PM
Sunday 11/23 at 10am PT on Climate Chat: 3 Climate Truths Everyone Must Know w/ hosts Dan Miller & @leonsimons.bsky.social.
#ClimateCrisis #ClimateAction
@bikingmzstacey.bsky.social @radsci.bsky.social
youtube.com/live/xn4Zr2E...
#ClimateCrisis #ClimateAction
@bikingmzstacey.bsky.social @radsci.bsky.social
youtube.com/live/xn4Zr2E...
Reposted by Thomas Boettcher
We all knew the petro-loving countries would fight for their business model at #COP30. So no, it’s not enough for the rest of the world to show up with feel-good green speeches. Right now, we need them to fight like our only home depends on it—because it does.
November 21, 2025 at 4:09 PM
We all knew the petro-loving countries would fight for their business model at #COP30. So no, it’s not enough for the rest of the world to show up with feel-good green speeches. Right now, we need them to fight like our only home depends on it—because it does.
Reposted by Thomas Boettcher
You shared it again today and our 2023 study already showed early evidence of a much stronger shipping desulphurization forcing change.
In December 2023 I shared this alternative version of your attribution graph with you:
In December 2023 I shared this alternative version of your attribution graph with you:
November 21, 2025 at 9:46 PM
You shared it again today and our 2023 study already showed early evidence of a much stronger shipping desulphurization forcing change.
In December 2023 I shared this alternative version of your attribution graph with you:
In December 2023 I shared this alternative version of your attribution graph with you:
Reposted by Thomas Boettcher
Unfortunately, mentioning exclusion rarely gets any response.
@hausfath.bsky.social and @climateofgavin.bsky.social didn't include the Hansen et al. observation based forcing (+0.5 W/m²) and global warming (0.2°C) estimate of shipping aerosols in their WMO report, without argumentation.
1/
@hausfath.bsky.social and @climateofgavin.bsky.social didn't include the Hansen et al. observation based forcing (+0.5 W/m²) and global warming (0.2°C) estimate of shipping aerosols in their WMO report, without argumentation.
1/
November 21, 2025 at 7:37 PM
Unfortunately, mentioning exclusion rarely gets any response.
@hausfath.bsky.social and @climateofgavin.bsky.social didn't include the Hansen et al. observation based forcing (+0.5 W/m²) and global warming (0.2°C) estimate of shipping aerosols in their WMO report, without argumentation.
1/
@hausfath.bsky.social and @climateofgavin.bsky.social didn't include the Hansen et al. observation based forcing (+0.5 W/m²) and global warming (0.2°C) estimate of shipping aerosols in their WMO report, without argumentation.
1/
Reposted by Thomas Boettcher
Warning! This colorful chart is censored by IPCC - mailchi.mp/caa/warning-...
Also available on Substack: jimehansen.substack.com/p/warning-th...
Also available on Substack: jimehansen.substack.com/p/warning-th...
November 21, 2025 at 3:33 PM
Warning! This colorful chart is censored by IPCC - mailchi.mp/caa/warning-...
Also available on Substack: jimehansen.substack.com/p/warning-th...
Also available on Substack: jimehansen.substack.com/p/warning-th...
Reposted by Thomas Boettcher
Seit 20 Jahren werden in der EU Subventionen für Fossilenergie konsequent abgebaut. Am Papier 😂😪
Wie kann man den grossen Selbstbetrug auf allen Ebenen nicht sehen?
(Weil ihn die Mehrheitsgesellschaft für das positive Selbstbild braucht).
Wie kann man den grossen Selbstbetrug auf allen Ebenen nicht sehen?
(Weil ihn die Mehrheitsgesellschaft für das positive Selbstbild braucht).
2005 - European Parliament resolution on "Winning the Battle Against Global #Climate Change"
"[clean energy is] hampered by numerous barriers, not least perverse incentives such as subsidies for fossil fuels; therefore, calls on the Commission to propose legislation to abolish all such subsidies"
"[clean energy is] hampered by numerous barriers, not least perverse incentives such as subsidies for fossil fuels; therefore, calls on the Commission to propose legislation to abolish all such subsidies"
November 21, 2025 at 6:48 AM
Seit 20 Jahren werden in der EU Subventionen für Fossilenergie konsequent abgebaut. Am Papier 😂😪
Wie kann man den grossen Selbstbetrug auf allen Ebenen nicht sehen?
(Weil ihn die Mehrheitsgesellschaft für das positive Selbstbild braucht).
Wie kann man den grossen Selbstbetrug auf allen Ebenen nicht sehen?
(Weil ihn die Mehrheitsgesellschaft für das positive Selbstbild braucht).
Reposted by Thomas Boettcher
Another reminder: Biological invasions are at least as costly as earthquakes, floods & wildfires. Their prevention deserves similar precautionary investments as those applied to extreme natural hazards. #bioinvasions
www.sciencedirect.com/science/arti...
www.sciencedirect.com/science/arti...
Biological invasions are as costly as natural hazards
Natural hazards — such as storms, floods, and wildfires — can be disastrous phenomena and so can biological invasions, for which impacts are often irr…
www.sciencedirect.com
November 21, 2025 at 2:43 AM
Another reminder: Biological invasions are at least as costly as earthquakes, floods & wildfires. Their prevention deserves similar precautionary investments as those applied to extreme natural hazards. #bioinvasions
www.sciencedirect.com/science/arti...
www.sciencedirect.com/science/arti...
Reposted by Thomas Boettcher
The latest, from November 18, has the planet at 1.61°C above pre-industrial.
Will the planet reach an anomaly of 1.80°C above pre-industrial over the coming few days, as forecast? The Climate 8-ball is busy eating gobsmacking bananas.
Will the planet reach an anomaly of 1.80°C above pre-industrial over the coming few days, as forecast? The Climate 8-ball is busy eating gobsmacking bananas.
November 20, 2025 at 4:53 PM
The latest, from November 18, has the planet at 1.61°C above pre-industrial.
Will the planet reach an anomaly of 1.80°C above pre-industrial over the coming few days, as forecast? The Climate 8-ball is busy eating gobsmacking bananas.
Will the planet reach an anomaly of 1.80°C above pre-industrial over the coming few days, as forecast? The Climate 8-ball is busy eating gobsmacking bananas.
Reposted by Thomas Boettcher
Im Jahresgutachten der Wirtschaftsweisen wird deutlich: Die Steuerprivilegien für reiche Unternehmenserben müssen beendet werden! Sie zahlen wegen Sonderregeln oft gar keine Abgaben auf ihr Erbe. (1/3)
November 20, 2025 at 4:19 PM
Im Jahresgutachten der Wirtschaftsweisen wird deutlich: Die Steuerprivilegien für reiche Unternehmenserben müssen beendet werden! Sie zahlen wegen Sonderregeln oft gar keine Abgaben auf ihr Erbe. (1/3)
Reposted by Thomas Boettcher
🌃 #Lichtverschmutzung heizt übrigens auch die Klimakatastrophe an.
Nebst Schädigung der Gesundheit von Mensch & Tier (durch Störung des natürlichen Tag-Nacht-Zyklus) und der Umwelt & Biodiversität (Ökosysteme werden beeinflusst, nachtaktive Tiere desorientiert/getötet, Pflanzenwachstum gestört)
Nebst Schädigung der Gesundheit von Mensch & Tier (durch Störung des natürlichen Tag-Nacht-Zyklus) und der Umwelt & Biodiversität (Ökosysteme werden beeinflusst, nachtaktive Tiere desorientiert/getötet, Pflanzenwachstum gestört)
Studie: Lichtverschmutzung tötet nicht nur Tiere, sondern führt auch zu deutlich höherem CO₂-Austoß durch Pflanzen
Der Effekt ist nicht in Klimamodellen berücksichtigt & verstärkt die #Klimakatastrophe erheblich
Also: Licht aus im Garten, auf Terrasse, Balkon und am Haus!
#Klimakollaps
Der Effekt ist nicht in Klimamodellen berücksichtigt & verstärkt die #Klimakatastrophe erheblich
Also: Licht aus im Garten, auf Terrasse, Balkon und am Haus!
#Klimakollaps
Wenn Licht das Klima anheizt: Forscher warnen vor zu hellen Nächten
Künstliche Beleuchtung bei Nacht lässt Tiere und Pflanzen mehr CO₂ freisetzen – Forscher warnen nun davor, was das für unser Klima bedeutet.
www.fr.de
November 20, 2025 at 6:13 AM
🌃 #Lichtverschmutzung heizt übrigens auch die Klimakatastrophe an.
Nebst Schädigung der Gesundheit von Mensch & Tier (durch Störung des natürlichen Tag-Nacht-Zyklus) und der Umwelt & Biodiversität (Ökosysteme werden beeinflusst, nachtaktive Tiere desorientiert/getötet, Pflanzenwachstum gestört)
Nebst Schädigung der Gesundheit von Mensch & Tier (durch Störung des natürlichen Tag-Nacht-Zyklus) und der Umwelt & Biodiversität (Ökosysteme werden beeinflusst, nachtaktive Tiere desorientiert/getötet, Pflanzenwachstum gestört)
Reposted by Thomas Boettcher
Your 'moment of doom' for Nov. 19, 2025 ~ Losing ourselves.
"This fragmentation isn’t just a social concern – it’s a risk multiplier. Divided societies struggle to mount coordinated responses to threats, from climate adaptation to pandemic preparedness."
riskandinsurance.com/the-fragment...
"This fragmentation isn’t just a social concern – it’s a risk multiplier. Divided societies struggle to mount coordinated responses to threats, from climate adaptation to pandemic preparedness."
riskandinsurance.com/the-fragment...
The Fragmentation Factor: How Social Division in 2025 Is Amplifying Global Risks - Risk & Insurance
As climate change loses ground to geopolitical instability and cybersecurity threats, AXA’s latest research reveals a world where the erosion of trust and social cohesion are making every crisis harde...
riskandinsurance.com
November 19, 2025 at 1:32 PM
Your 'moment of doom' for Nov. 19, 2025 ~ Losing ourselves.
"This fragmentation isn’t just a social concern – it’s a risk multiplier. Divided societies struggle to mount coordinated responses to threats, from climate adaptation to pandemic preparedness."
riskandinsurance.com/the-fragment...
"This fragmentation isn’t just a social concern – it’s a risk multiplier. Divided societies struggle to mount coordinated responses to threats, from climate adaptation to pandemic preparedness."
riskandinsurance.com/the-fragment...
Reposted by Thomas Boettcher
Merz versteht weder Physik noch Klimakatstrophe noch Politik. Menschen vor den Kopf zu stoßen gelingt ihm daher mit einer erschreckend selbstverständlichen Leichtigkeit. Statt die Zukunft der Erde und mit dieser die Deutschlands zu sichern, verkaufte er bräsig Rückschritt und düpierte den Gastgeber.
November 19, 2025 at 8:58 AM
Merz versteht weder Physik noch Klimakatstrophe noch Politik. Menschen vor den Kopf zu stoßen gelingt ihm daher mit einer erschreckend selbstverständlichen Leichtigkeit. Statt die Zukunft der Erde und mit dieser die Deutschlands zu sichern, verkaufte er bräsig Rückschritt und düpierte den Gastgeber.
Reposted by Thomas Boettcher
Presentation after Presentation at the meeting highlighted change in the oceans and atmosphere around Antarctica, and the way they are impacting sea ice, the ice sheet and biodiversity.
September 30, 2025 at 5:17 PM
Presentation after Presentation at the meeting highlighted change in the oceans and atmosphere around Antarctica, and the way they are impacting sea ice, the ice sheet and biodiversity.
Reposted by Thomas Boettcher
New today: Critical research published in @nature.com on the abrupt and alarming changes being observed in #Antarctica and the surrounding Southern Ocean, led by Prof. @climatenerilie.bsky.social, with @profmattengland.bsky.social and colleagues ⬇️
theconversation.com/from-sea-ice...
theconversation.com/from-sea-ice...
From sea ice to ocean currents, Antarctica is now undergoing abrupt changes – and we’ll all feel them
The vast ice of Antarctica has long seemed impregnable. But sudden changes are arriving – from shrinking sea ice to melting ice sheets and slowing ocean currents.
theconversation.com
August 21, 2025 at 3:19 AM
New today: Critical research published in @nature.com on the abrupt and alarming changes being observed in #Antarctica and the surrounding Southern Ocean, led by Prof. @climatenerilie.bsky.social, with @profmattengland.bsky.social and colleagues ⬇️
theconversation.com/from-sea-ice...
theconversation.com/from-sea-ice...
Reposted by Thomas Boettcher
Yeah true that a Stonmel type irreversibility is not necessarily a thing here— but switching off Antarctic melt could take 1000s of years on our current trajectory. I meant a tipping point where a collapse is inevitable, and a stable off state would persist for a long long time.
November 18, 2025 at 10:27 PM
Yeah true that a Stonmel type irreversibility is not necessarily a thing here— but switching off Antarctic melt could take 1000s of years on our current trajectory. I meant a tipping point where a collapse is inevitable, and a stable off state would persist for a long long time.
Reposted by Thomas Boettcher
Thank you! Yes the Antarctic MOC doesn’t drive as much poleward heat transport as the AMOC. But it is critical for recycling nutrients back to the sea surface. And there are concerns it can lead to more shelf water warming — an amplifying feedback.
November 18, 2025 at 10:34 PM
Thank you! Yes the Antarctic MOC doesn’t drive as much poleward heat transport as the AMOC. But it is critical for recycling nutrients back to the sea surface. And there are concerns it can lead to more shelf water warming — an amplifying feedback.
Reposted by Thomas Boettcher
Thanks Henri! Agreed that the big problem is the commitment to future MW input, which is set to be long-lived, nonlinear, and bad for SLR and also overturning stability. And I agree the overturning will eventually re-establish once the MW input stabilises, but that could be 1000+ years away.
November 19, 2025 at 3:07 AM
Thanks Henri! Agreed that the big problem is the commitment to future MW input, which is set to be long-lived, nonlinear, and bad for SLR and also overturning stability. And I agree the overturning will eventually re-establish once the MW input stabilises, but that could be 1000+ years away.
Reposted by Thomas Boettcher
Breaking News!
Code UFB!!!
CERES data just dropped for August, 2025, and the 36-month running average for Earth albedo just hit yet another new record low, now at 28.701%.
The Climate 8-ball says: "you're going to need a bigger y-axis."
Code UFB!!!
CERES data just dropped for August, 2025, and the 36-month running average for Earth albedo just hit yet another new record low, now at 28.701%.
The Climate 8-ball says: "you're going to need a bigger y-axis."
November 18, 2025 at 1:18 PM
Breaking News!
Code UFB!!!
CERES data just dropped for August, 2025, and the 36-month running average for Earth albedo just hit yet another new record low, now at 28.701%.
The Climate 8-ball says: "you're going to need a bigger y-axis."
Code UFB!!!
CERES data just dropped for August, 2025, and the 36-month running average for Earth albedo just hit yet another new record low, now at 28.701%.
The Climate 8-ball says: "you're going to need a bigger y-axis."
Reposted by Thomas Boettcher
"The pace of change is already at about a 30% decline. This just tells you how critically urgent carbon emissions reductions are, because we need to give this overturning circulation every chance of not tipping over what seems to be a very perilous & near tipping point"
#ClimateEmergency
#Antarctica
#ClimateEmergency
#Antarctica
November 18, 2025 at 6:54 AM
"The pace of change is already at about a 30% decline. This just tells you how critically urgent carbon emissions reductions are, because we need to give this overturning circulation every chance of not tipping over what seems to be a very perilous & near tipping point"
#ClimateEmergency
#Antarctica
#ClimateEmergency
#Antarctica