On January 15, 2022, the Hunga Tonga-Hunga Ha'apai volcano (HTHH) experienced an explosive eruption. Fantastic.
February 6, 2025 at 7:25 PM
On January 15, 2022, the Hunga Tonga-Hunga Ha'apai volcano (HTHH) experienced an explosive eruption. Fantastic.
More evidence that HTHH had little to do with the the recent global spike in temperatures.
A new detailed study confirms that the Hunga-Tonga eruption in 2022 had a net cooling effect of 0.1ºC on the Southern Hemisphere. The sulphate aerosols overwhelmed the water vapour effect in the upper atmosphere.
www.nature.com/articles/s43...
#climatechange #SAI #volcano #geoengineering
www.nature.com/articles/s43...
#climatechange #SAI #volcano #geoengineering
The January 2022 Hunga eruption cooled the southern hemisphere in 2022 and 2023 - Communications Earth & Environment
The 2022 Hunga volcanic eruption resulted in radiative energy losses in the Southern Hemisphere following the eruption, causing a cooling of −0.10 ± 0.02 K at the end of 2022 and 2023 there, according...
www.nature.com
April 3, 2025 at 3:31 PM
More evidence that HTHH had little to do with the the recent global spike in temperatures.
Trolls superficially quite green
They often get into recycling 😬
Tonga HTHH eruption caused unique & significant warming event, in context, impact insubstantial compared to global forcing from climate change caused by humans
Effects of HTHH will fade
Global warming continues unabated
They often get into recycling 😬
Tonga HTHH eruption caused unique & significant warming event, in context, impact insubstantial compared to global forcing from climate change caused by humans
Effects of HTHH will fade
Global warming continues unabated
January 23, 2025 at 5:14 AM
Trolls superficially quite green
They often get into recycling 😬
Tonga HTHH eruption caused unique & significant warming event, in context, impact insubstantial compared to global forcing from climate change caused by humans
Effects of HTHH will fade
Global warming continues unabated
They often get into recycling 😬
Tonga HTHH eruption caused unique & significant warming event, in context, impact insubstantial compared to global forcing from climate change caused by humans
Effects of HTHH will fade
Global warming continues unabated
Did you know that Earth's most & 2nd most powerful/explosive #volcanic #eruptions of the century were submarine? We are discussing both the 2022 Hunga Tonga-Hunga Ha'apai (pictured) & the 2012 Havre eruptions, both in the Kingdom of Tonga, this week in my Submarine volcanoes course at #URIGSO 🧪🌋🌊
October 9, 2025 at 1:38 PM
Did you know that Earth's most & 2nd most powerful/explosive #volcanic #eruptions of the century were submarine? We are discussing both the 2022 Hunga Tonga-Hunga Ha'apai (pictured) & the 2012 Havre eruptions, both in the Kingdom of Tonga, this week in my Submarine volcanoes course at #URIGSO 🧪🌋🌊
New paper by @ncar-acom.bsky.social scientist Ilaria Quaglia and co-authors: "Multi-model analysis of the impact of water vapor on the radiative forcing of volcanic #aerosols after the 2022 #Hunga #Eruption"
acp.copernicus.org/articles/26/...
#WaterVapor #VolcanicAerosols #HTHH #SO2 #HungaTonga
acp.copernicus.org/articles/26/...
#WaterVapor #VolcanicAerosols #HTHH #SO2 #HungaTonga
acp.copernicus.org
June 18, 2026 at 3:12 PM
New paper by @ncar-acom.bsky.social scientist Ilaria Quaglia and co-authors: "Multi-model analysis of the impact of water vapor on the radiative forcing of volcanic #aerosols after the 2022 #Hunga #Eruption"
acp.copernicus.org/articles/26/...
#WaterVapor #VolcanicAerosols #HTHH #SO2 #HungaTonga
acp.copernicus.org/articles/26/...
#WaterVapor #VolcanicAerosols #HTHH #SO2 #HungaTonga
🧪 People often ask 'how does your research link 🌋& 🌊?" Here's one way:
Large eruptions can dramatically impact surface ocean biology & chemistry. This example from the 2022 Submarine Eruption of the Hunga Tonga-Hunga Haʻapai Volcano, open access at agupubs.onlinelibrary.wiley.com/doi/10.1029/...
Large eruptions can dramatically impact surface ocean biology & chemistry. This example from the 2022 Submarine Eruption of the Hunga Tonga-Hunga Haʻapai Volcano, open access at agupubs.onlinelibrary.wiley.com/doi/10.1029/...
January 17, 2025 at 3:58 PM
🧪 People often ask 'how does your research link 🌋& 🌊?" Here's one way:
Large eruptions can dramatically impact surface ocean biology & chemistry. This example from the 2022 Submarine Eruption of the Hunga Tonga-Hunga Haʻapai Volcano, open access at agupubs.onlinelibrary.wiley.com/doi/10.1029/...
Large eruptions can dramatically impact surface ocean biology & chemistry. This example from the 2022 Submarine Eruption of the Hunga Tonga-Hunga Haʻapai Volcano, open access at agupubs.onlinelibrary.wiley.com/doi/10.1029/...
📺Did you miss our speed briefing on the ground-breaking new legal toolkit on climate and disaster displacement?
No worries; watch on demand.
W/@profjmcadam.bsky.social, Madeline Garlick @unhcr.org and Dr Tamara Wood
#climate #disasters #dispalcement #law #protection www.youtube.com/watch?v=HtHH...
No worries; watch on demand.
W/@profjmcadam.bsky.social, Madeline Garlick @unhcr.org and Dr Tamara Wood
#climate #disasters #dispalcement #law #protection www.youtube.com/watch?v=HtHH...
Speed briefing - Practical toolkit on climate and disaster displacement
YouTube video by UNSW Kaldor Centre for International Refugee Law
www.youtube.com
February 26, 2025 at 12:17 PM
📺Did you miss our speed briefing on the ground-breaking new legal toolkit on climate and disaster displacement?
No worries; watch on demand.
W/@profjmcadam.bsky.social, Madeline Garlick @unhcr.org and Dr Tamara Wood
#climate #disasters #dispalcement #law #protection www.youtube.com/watch?v=HtHH...
No worries; watch on demand.
W/@profjmcadam.bsky.social, Madeline Garlick @unhcr.org and Dr Tamara Wood
#climate #disasters #dispalcement #law #protection www.youtube.com/watch?v=HtHH...
In mid-January 2022, the Hunga Tonga-Hunga Ha’apai (HTHH) volcano had one of the most massive eruptions ever recorded, destroying an island, generating a tsunami, and blanketing Tonga in ash. #eruption #fluiddynamics #physics #science #seismicwaves #seismology #volcano
fyfluiddynamics.com/?p=22416
fyfluiddynamics.com/?p=22416
December 17, 2024 at 5:01 PM
In mid-January 2022, the Hunga Tonga-Hunga Ha’apai (HTHH) volcano had one of the most massive eruptions ever recorded, destroying an island, generating a tsunami, and blanketing Tonga in ash. #eruption #fluiddynamics #physics #science #seismicwaves #seismology #volcano
fyfluiddynamics.com/?p=22416
fyfluiddynamics.com/?p=22416
HTHH was also an interesting one. There was some discussion about short term warming effects, which is unusual.
May 9, 2025 at 7:40 PM
HTHH was also an interesting one. There was some discussion about short term warming effects, which is unusual.
Zeke, the next LAM I'll come bully you if you don't stop writing SO₂ as SO2 🙃 Also glad to see your HTHH part now pointing out the likely negative contribution: we have a paper in review now showing how this is robust across different models: egusphere.copernicus.org/preprints/20...
Multi-model analysis of the radiative impacts of the 2022 Hunga eruption indicates a significant cooling contribution from the volcanic plume
Abstract. On January 15, 2022, the Hunga volcano eruption released unprecedented amounts of water vapor into the atmosphere alongside a modest amount of SO2. In this work we analyse results from multi...
egusphere.copernicus.org
December 11, 2025 at 5:08 PM
Zeke, the next LAM I'll come bully you if you don't stop writing SO₂ as SO2 🙃 Also glad to see your HTHH part now pointing out the likely negative contribution: we have a paper in review now showing how this is robust across different models: egusphere.copernicus.org/preprints/20...
One of my professors got back from Lahaina (research on extended recovery and changes to communication and response planning post disaster) last night to teach class today. And back at a prior uni a physics prof of mine had to get all his classes covered to go to HTHH sampling for two weeks.
August 28, 2025 at 11:27 PM
One of my professors got back from Lahaina (research on extended recovery and changes to communication and response planning post disaster) last night to teach class today. And back at a prior uni a physics prof of mine had to get all his classes covered to go to HTHH sampling for two weeks.
No amount of observation that Hunga Tonga's SO2 emission more than canceled out its H2O emission's impact on global temperatures will do.
@rarohde.bsky.social
Why do we keep repeating that HTHH could've caused excess '23 warming which we now know is not true.
doi.org/10.1029/2024...
@rarohde.bsky.social
Why do we keep repeating that HTHH could've caused excess '23 warming which we now know is not true.
doi.org/10.1029/2024...
Evolution of the Climate Forcing During the Two Years After the Hunga Tonga‐Hunga Ha'apai Eruption
The 15 Jan. 2022, Hunga eruption increased aerosols and H2O in the southern hemisphere stratosphere and then dispersed throughout 2022/3 Stratospheric water vapor, ozone, temperature, and aerosol...
doi.org
December 13, 2024 at 5:13 AM
No amount of observation that Hunga Tonga's SO2 emission more than canceled out its H2O emission's impact on global temperatures will do.
@rarohde.bsky.social
Why do we keep repeating that HTHH could've caused excess '23 warming which we now know is not true.
doi.org/10.1029/2024...
@rarohde.bsky.social
Why do we keep repeating that HTHH could've caused excess '23 warming which we now know is not true.
doi.org/10.1029/2024...
Yes, that is the expectation. But GHG forcing continues to increase, we are near the peak of solar cycle 25 & there is still lots of water vapor in the stratosphere from the HTHH eruption. We will see. eos.org/research-spo....
Atmospheric Effects of Hunga Tonga Eruption Lingered for Years - Eos
A new study builds on previous research of the underwater volcano’s effects on the climate.
eos.org
January 11, 2025 at 3:07 PM
Yes, that is the expectation. But GHG forcing continues to increase, we are near the peak of solar cycle 25 & there is still lots of water vapor in the stratosphere from the HTHH eruption. We will see. eos.org/research-spo....
(3/) Could this also be lingering effects from the HTHH water vapor in the stratosphere? Or is it just the lack of wave driving into the stratosphere (which is also very low)? It's hard to say for sure.
November 26, 2023 at 11:02 PM
(3/) Could this also be lingering effects from the HTHH water vapor in the stratosphere? Or is it just the lack of wave driving into the stratosphere (which is also very low)? It's hard to say for sure.
I think it could go below 1.2C.
After 1877-78 it basically returned to what it was. However, HTHH may be a factor. 1870s had no coverage at the poles, which may keep anomalies high. The late 1870s were a solar minimum, we’re entering a max. That might mean less chance of la nina & lower albedo.
After 1877-78 it basically returned to what it was. However, HTHH may be a factor. 1870s had no coverage at the poles, which may keep anomalies high. The late 1870s were a solar minimum, we’re entering a max. That might mean less chance of la nina & lower albedo.
December 27, 2024 at 7:21 PM
I think it could go below 1.2C.
After 1877-78 it basically returned to what it was. However, HTHH may be a factor. 1870s had no coverage at the poles, which may keep anomalies high. The late 1870s were a solar minimum, we’re entering a max. That might mean less chance of la nina & lower albedo.
After 1877-78 it basically returned to what it was. However, HTHH may be a factor. 1870s had no coverage at the poles, which may keep anomalies high. The late 1870s were a solar minimum, we’re entering a max. That might mean less chance of la nina & lower albedo.
Record global temperatures linked to reduced planetary albedo from unusually low-cloud cover in the tropics and Northern mid-latitudes. But recent changes in marine ship emissions seem insufficient to account for all of this. What scope remains for HTHH impacts?
www.science.org/doi/10.1126/...
www.science.org/doi/10.1126/...
Recent global temperature surge intensified by record-low planetary albedo
In 2023, the global mean temperature soared to almost 1.5K above the pre-industrial level, surpassing the previous record by about 0.17K. Previous best-guess estimates of known drivers including anthr...
www.science.org
December 6, 2024 at 9:03 AM
Record global temperatures linked to reduced planetary albedo from unusually low-cloud cover in the tropics and Northern mid-latitudes. But recent changes in marine ship emissions seem insufficient to account for all of this. What scope remains for HTHH impacts?
www.science.org/doi/10.1126/...
www.science.org/doi/10.1126/...
listenignt to this while i wait for my ride to band praccy
www.youtube.com/watch?v=hthh...
www.youtube.com/watch?v=hthh...
Bug Bus Piano @TheLotRadio 09-04-2024
YouTube video by The Lot Radio
www.youtube.com
October 15, 2024 at 12:30 AM
listenignt to this while i wait for my ride to band praccy
www.youtube.com/watch?v=hthh...
www.youtube.com/watch?v=hthh...
It's been a year since our study on the Hunga Tonga volcano came out (doi.org/10.1175/JCLI...), and given we're entering the period where our simulations suggested regional impacts, I thought I'd add a few thoughts: 0/5
Long-Term Climate Impacts of Large Stratospheric Water Vapor Perturbations
Abstract The amount of water vapor injected into the stratosphere after the eruption of Hunga Tonga–Hunga Ha’apai (HTHH) was unprecedented, and it is therefore unclear what it might mean for surface c...
doi.org
May 21, 2025 at 3:03 AM
It's been a year since our study on the Hunga Tonga volcano came out (doi.org/10.1175/JCLI...), and given we're entering the period where our simulations suggested regional impacts, I thought I'd add a few thoughts: 0/5
New preprint from Australian climate scientists argues that this year's high temperatures are largely due to Jan. 2022 South Pacific volcano that spewed "unprecedented" volumes of water vapor into stratosphere:
Long-term surface impact of Hunga Tonga-Hunga Ha'apai-like stratospheric water vapor injection
The amount of water vapor injected into the stratosphere after the eruption of Hunga Tonga-Hunga Ha'apai (HTHH) was unprecedented, and it is therefore unclear what it might mean for surface climate. W...
essopenarchive.org
August 7, 2023 at 3:10 PM
New preprint from Australian climate scientists argues that this year's high temperatures are largely due to Jan. 2022 South Pacific volcano that spewed "unprecedented" volumes of water vapor into stratosphere:
I suppose another line of evidence will emerge once all of the modeling hthh has completed.
It isn’t looking likely models will show hthh skipped 22 and caused 23/24 warming either.
Did you present a doi I can check out?
It isn’t looking likely models will show hthh skipped 22 and caused 23/24 warming either.
Did you present a doi I can check out?
December 13, 2024 at 12:54 PM
I suppose another line of evidence will emerge once all of the modeling hthh has completed.
It isn’t looking likely models will show hthh skipped 22 and caused 23/24 warming either.
Did you present a doi I can check out?
It isn’t looking likely models will show hthh skipped 22 and caused 23/24 warming either.
Did you present a doi I can check out?
The only time I found a comparison to the atomic bomb relevant was when NASA said the eruption of HTHH in Tonga had been equivalent to “100s of Hiroshimas”. I was in Tonga and worried there might be more, more powerful blows later. Then I was not, because it sounded “unbeatable”
September 23, 2025 at 5:09 PM
The only time I found a comparison to the atomic bomb relevant was when NASA said the eruption of HTHH in Tonga had been equivalent to “100s of Hiroshimas”. I was in Tonga and worried there might be more, more powerful blows later. Then I was not, because it sounded “unbeatable”
I am talking about the Hunga Tonga-Hunga Haʻapai (HTHH) volcano in the South Pacific, which erupted on January 15, 2022.
In 2022 there were reports about the island having lost their battle to keep COVID out. At the time I remember thinking … they should really study it.
I’ll go dig & circle back!
In 2022 there were reports about the island having lost their battle to keep COVID out. At the time I remember thinking … they should really study it.
I’ll go dig & circle back!
December 16, 2025 at 3:57 PM
I am talking about the Hunga Tonga-Hunga Haʻapai (HTHH) volcano in the South Pacific, which erupted on January 15, 2022.
In 2022 there were reports about the island having lost their battle to keep COVID out. At the time I remember thinking … they should really study it.
I’ll go dig & circle back!
In 2022 there were reports about the island having lost their battle to keep COVID out. At the time I remember thinking … they should really study it.
I’ll go dig & circle back!
I pulled quotes from the articles and should have put them in quotes. I didn't write the papers.
I was trying to agree with you that HTHH had a small effect, although the most recent articles say the eruption had a very slight net *cooling* effect.
I was trying to agree with you that HTHH had a small effect, although the most recent articles say the eruption had a very slight net *cooling* effect.
January 25, 2025 at 6:21 PM
I pulled quotes from the articles and should have put them in quotes. I didn't write the papers.
I was trying to agree with you that HTHH had a small effect, although the most recent articles say the eruption had a very slight net *cooling* effect.
I was trying to agree with you that HTHH had a small effect, although the most recent articles say the eruption had a very slight net *cooling* effect.
I had too! Dr Dessler brought it up a couple months ago and I've had it open since.
The dept head for physics where I attended uni in 22/23 was on the team that launched radiosondes in the HTHH plume, and the initial study concluded the eruption induced warming, so I assumed that was still true.
The dept head for physics where I attended uni in 22/23 was on the team that launched radiosondes in the HTHH plume, and the initial study concluded the eruption induced warming, so I assumed that was still true.
June 14, 2025 at 2:11 PM
I had too! Dr Dessler brought it up a couple months ago and I've had it open since.
The dept head for physics where I attended uni in 22/23 was on the team that launched radiosondes in the HTHH plume, and the initial study concluded the eruption induced warming, so I assumed that was still true.
The dept head for physics where I attended uni in 22/23 was on the team that launched radiosondes in the HTHH plume, and the initial study concluded the eruption induced warming, so I assumed that was still true.
Ça y est : l’épisode 1 du récit de mon vécu de l’éruption volcanique la plus puissante jamais enregistrée est sur mon blog. Là, on plante le décor. Il faut bien ça.
Les photos sont de moi, et forcément magnifiques (merci, merci), les souvenirs aussi.
homingaway.wordpress.com/2024/01/17/e...
Les photos sont de moi, et forcément magnifiques (merci, merci), les souvenirs aussi.
homingaway.wordpress.com/2024/01/17/e...
Éruption de HTHH : 1 – planter le décor
Deux jours plus tôt en effet, le volcan sous-marin Hunga Tonga Hunga Ha’apai (HHTH par la suite) avait repris son activité qui était en berne depuis une semaine environ en évacuant une bonne pou...
homingaway.wordpress.com
January 16, 2024 at 2:37 PM
Ça y est : l’épisode 1 du récit de mon vécu de l’éruption volcanique la plus puissante jamais enregistrée est sur mon blog. Là, on plante le décor. Il faut bien ça.
Les photos sont de moi, et forcément magnifiques (merci, merci), les souvenirs aussi.
homingaway.wordpress.com/2024/01/17/e...
Les photos sont de moi, et forcément magnifiques (merci, merci), les souvenirs aussi.
homingaway.wordpress.com/2024/01/17/e...