#HFC-23
Les efforts visant à réduire les émissions de HFC-23 (un gaz à effet de serre 14 700 fois plus puissant que le CO2) mis à mal.

Près de la moitié du HFC-23 détecté dans l’atmosphère entre 2015 & 2019 provient d’usines de l’Est de la Chine, malgré les déclarations affirmant le contraire.

1/2
November 2, 2023 at 1:11 PM
Your 'moment of doom' for Dec. 23, 2024 ~ It's a gas, gas, gas!

"in just two decades, HFC-125 levels have increased tenfold. This rapid surge reflects the growing demand for cooling technologies, particularly in emerging countries where such equipment is becoming commonplace."
This devastating synthetic gas is spreading: 3,500 times more impactful than CO2 ☁️
HFC-125, a synthetic gas, is in the spotlight. Recent measurements from space reveal a true explosion in its...
www.techno-science.net
December 23, 2024 at 1:28 PM
"Chinese chemical plants can destroy HFC-23 at a cost of approximately $0.30 to $0.60 per tonne of CO₂ equivalent. That makes destroying HFC-23 one of the most cost-effective ways to combat climate change."
But still they aren't doing it.
China Claims It Slashed Emissions of a Major Super Pollutant. The Data Says Otherwise.
As of 2023, China continued to emit HFC-23 at high levels in violation of an international agreement.
foreignpolicy.com
June 13, 2025 at 2:42 PM
In 2021, China joined the Kigali Agreement, and pledged to stop emitting HFC-23, a climate super pollutant 14,700x stronger than CO2.

The latest atmospheric readings show China is way off track,
@mckennapr.bsky.social & I report in our deep dive:

foreignpolicy.com/2025/05/21/c...
China Claims It Slashed Emissions of a Major Super Pollutant. The Data Says Otherwise.
As of 2023, China continued to emit HFC-23 at high levels in violation of an international agreement.
foreignpolicy.com
May 21, 2025 at 4:51 PM
Global treaty is failing to curb ultra-potent greenhouse gas emissions

Countries have pledged to phase out HFC-23, a powerful greenhouse gas, but data shows that emissions are five times higher than governments are reporting

www.newscientist.com/article/2462...

docs.google.com/document/d/1...
Global treaty is failing to curb ultra-potent greenhouse gas emissions
Countries have pledged to phase out HFC-23, a powerful greenhouse gas, but atmospheric data shows that emissions are five times higher than governments are reporting
www.newscientist.com
January 3, 2025 at 10:20 PM
Following an entire week of wildfire smoke polluting our skies, we are seeing firsthand how the climate crisis is threatening our way of life and costing our economy billions in just a matter of days.

www.wilx.com/2026/07/23/m...
Michigan AG joins multistate lawsuit over EPA rollback of HFC regulations
Dana Nessel’s office says the rule “weakens regulations of highly potent greenhouse gas”
www.wilx.com
July 23, 2026 at 10:56 PM
quite a big study here showing that actual emissions reductions for a bunch of different offsets types are significantly lower than how they're marketed

This is exactly what you expect from a system that rewards maximum offset sales, not maximum climate action

www.nature.com/articles/s41...
November 14, 2024 at 9:22 PM
“HFC-23 emissions from chemical plants in eastern China and elsewhere likely violate an international climate agreement despite readily available pollution controls. Advocates are pressing for action.”
#GreenSky
A Restricted Climate Super Pollutant Is Pumped Out at Far Higher Levels Than Countries Admit. What Happens Next? - Inside Climate News
HFC-23 emissions from chemical plants in eastern China and elsewhere likely violate an international climate agreement despite readily available pollution controls. Advocates are pressing for action.
insideclimatenews.org
May 21, 2025 at 8:09 PM
China has destroyed 17,000 tonnes of the potent greenhouse gas HFC-23 over the past five years, equivalent to reducing more than 250 million tons of CO2 emissions. www.chinadaily.com.cn/a/202609/16/...
September 17, 2026 at 9:27 AM
23 and me filed for bankruptcy hfc what happens to all that dna
March 25, 2025 at 3:04 AM
Reminder: Messmethode entwickelt - Treibhausgas HFC-23: Eindämmung von Emissionen ist möglich www.dmz-news.eu/2024/10/10/r...
Reminder: Messmethode entwickelt - Treibhausgas HFC-23: Eindämmung von Emissionen ist möglich
DMZ – WISSENSCHAFT / MM ¦ AA ¦ Dübendorf, St. Gallen und Thun – In einer bahnbrechenden Studie haben Forschende der Empa, der University of Bristol und der Niederländischen Organisation für Angewandte...
www.dmz-news.eu
October 10, 2024 at 4:59 AM
Neue Messmethode entwickelt - Treibhausgas HFC-23: Eindämmung von Emissionen ist möglich www.dmz-news.eu/2024/08/23/n...
Neue Messmethode entwickelt - Treibhausgas HFC-23: Eindämmung von Emissionen ist möglich
DMZ – WISSENSCHAFT / MM ¦ AA ¦ Dübendorf, St. Gallen und Thun – In einer bahnbrechenden Studie haben Forschende der Empa, der University of Bristol und der Niederländischen Organisation für Angewandte...
www.dmz-news.eu
August 23, 2024 at 7:18 AM
Important new reporting by @mckennapr.bsky.social on new data showing that HFC-23 levels (a super potent GHG) off China's coast remain high even after the country is supposed to have stopped emitting under Kigali. The data is preliminary but impt to watch this: insideclimatenews.org/news/1811202...
Is China Emitting a Climate Super Pollutant in Violation of an International Environmental Agreement...
Preliminary atmospheric monitoring data from a remote South Korean island off China’s east coast shows elevated concentrations of hydrofluorocarbon-23 (HFC-23), a greenhouse gas 14,700 times more po...
insideclimatenews.org
November 20, 2023 at 9:56 PM
Delegates at #MontrealProtocol #MOP37 did not waste any time getting to work Monday on some of the big-ticket items including the next replenishment of the Multilateral Fund and stubbornly high emissions of hydrofluorocarbon (HFC)-23

Read ➡️ enb.iisd.org/montreal-pro...

@unepozone.bsky.social
November 3, 2025 at 8:53 PM
At #Ozone #MOP37, Côte d’Ivoire called to “raise the alarms” on the stubbornly high global #HFC-23 emissions and for the meeting to deliver strong recommendations. @unepozone.bsky.social
November 3, 2025 at 11:46 AM
A climate super pollutant that China and others agreed to destroy is being emitted at levels far higher than countries admit, posing a significant test to an international climate agreement.
A Restricted Climate Super Pollutant Is Pumped Out at Far Higher Levels Than Countries Admit. What Happens Next? - Inside Climate News
HFC-23 emissions from chemical plants in eastern China and elsewhere likely violate an international climate agreement despite readily available pollution controls. Advocates are pressing for action.
insideclimatenews.org
May 21, 2025 at 5:46 PM
Holy greenwashing Batman! Comprehensive study of 1/5 the carbon credits issued to date shows they achieve less than 16% of the emissions they claim to represent.

Only credits for abatement of HFC-23 emissions from manufacturing even comes close, at 68% 🧪 #climatesky

www.nature.com/articles/s41...
Systematic assessment of the achieved emission reductions of carbon crediting projects - Nature Communications
Carbon markets are key in climate strategies, but only 16% of carbon credits represent real emission reductions, based on a study of 2,346 projects. Reforms are needed to improve the effectiveness of ...
www.nature.com
November 15, 2024 at 8:31 PM
Now online:

Article by Thomas Poisson, Philippe Jubault & co-workers

Fluoroform upcycling to trifluorovinylamine as a C2 reagent to prepare difluoromethylated molecules

www.nature.com/articles/s44... ($)
#Chemsky
Fluoroform upcycling to trifluorovinylamine as a C2 reagent to prepare difluoromethylated molecules - Nature Synthesis
Fluoroform (HFC-23) is a potent greenhouse gas by-product produced in multi-tonne quantities. Here the valorization of HFC-23 into a fluorinated C2 reagent, trifluorovinylamine, which can be used in t...
www.nature.com
March 23, 2026 at 11:47 AM
Op 23 maart 1944 bezweek militair Robert Francis Twiss bij de Birmaspoorweg, 30 jaar oud. Hij was lid van HFC uit Haarlem, nu de Koninklijke HFC

Zijn naam staat op het KNVB-monument.

Meer op het Voetbalmonument staat op voetbalmonument.nl/de-oorlogssl...
March 23, 2025 at 9:20 AM
Global treaty is failing to curb ultra-potent greenhouse gas emissions. #climate www.newscientist.com/article/2462...
Global treaty is failing to curb ultra-potent greenhouse gas emissions
Countries have pledged to phase out HFC-23, a powerful greenhouse gas, but atmospheric data shows that emissions are five times higher than governments are reporting
www.newscientist.com
January 3, 2025 at 8:48 PM
Hodan and Sarah's work in collaboration with @jamesabull.bsky.social and Phil Miller on transforming trifluoromethane (HFC-23) into fluoroalkenes is now out in @angewandtechemie.bsky.social here is the link: onlinelibrary.wiley.com/doi/10.1002/...
Defluoroalkylation of Trifluoromethane with Organolithium Reagents: Mechanism and Synthesis of Fluoroalkenes
We report a rare example of the transformation of HCF3 into a fluoroalkene functional group through defluoroalkylation. We rationalise product formation through DFT calculations, scale-up the synthes...
onlinelibrary.wiley.com
November 10, 2025 at 1:28 PM
Most consumers (and many retailers) don’t realise this but HFCs incl HFC 23 are still commonly used as heat transfer fluids in heat pumps but are easily avoided - we got an Arotherm Plus from @vaillantuk.bsky.social which uses hydrocarbons instead, with a negligible Global Warming Potential
January 3, 2025 at 11:56 PM
A Restricted Climate Super Pollutant Is Pumped Out at Far Higher Levels Than Countries Admit. What Happens Next? insideclimatenews.org/news/2105202...
A Restricted Climate Super Pollutant Is Pumped Out at Far Higher Levels Than Countries Admit. What Happens Next? - Inside Climate News
HFC-23 emissions from chemical plants in eastern China and elsewhere likely violate an international climate agreement despite readily available pollution controls. Advocates are pressing for action.
insideclimatenews.org
May 21, 2025 at 10:07 PM
Today's HFC update is now live and it's a new part of Bully: Scholarship Edition!

www.youtube.com/watch?v=AYef...

Enjoy!
Bully: Scholarship Edition (Wii) playthrough [Part 23: Go See The Principal]
YouTube video by HellfireComms
www.youtube.com
December 17, 2025 at 11:52 PM
Today's HFC update is now live and it's a new part of The Wonderful 101 Remastered!

www.youtube.com/watch?v=Pz6j...

Enjoy!
The Wonderful 101 Remastered playthrough [Part 23: Operation 008-B]
YouTube video by HellfireComms
www.youtube.com
July 28, 2026 at 11:01 PM