Discover and read the best of Twitter Threads about #Methane

Most recents (24)

🌍 Our 2022 #Science Board Symposium on "The #Emergent #PoliticalEconomy or #ClimateChange" kicks off with opening remarks from President David Krakauer.

Follow this 🧵 as we provide live coverage of this event all day...
"For those of you who think behavior change can prevent #ClimateChange...behavior WILL change when climate changes. Shutdowns from the pandemic resulted in a reduction of #C02 emissions of about 7.5%."
- SFI/@Harvard Prof Dan Schrag opens our speaker series today
"We *used* to talk about #ClimateChange used to be something that would happen to people in Bangladesh fifty years from now."

Re: #ClimateJustice,
"Children born today are going to deal with climate change they had no role in causing."

- SFI/@Harvard Prof Dan Schrag
Read 56 tweets
Hydrogen '2x as powerful a greenhouse gas as thought before': UK govt study

Global Warming potential (GWP) of #hydrogen is between 6 & 16, 11 the ave — GWP of CO2 is 1. Previous 2001 study put GWP of hydrogen at 5.8…
“Any leakage of H2 will result in an indirect global warming, offsetting greenhouse gas emission reductions made as a result of a switch from fossil fuel to H2,”

"much smaller molecule than #methane.. much more easily leak from existing #naturalgas pipelines if used to carry H2"
report does not take into account GWP of PRODUCING hydrogen, only impact of H2 released into atmosphere

electrolysis production of H2 wld result in 9.2% leakage frm “venting & purging”, but this wld fall to 0.52% “with full recombination from purging & crossover venting”.
Read 5 tweets
These are our 5 takeaways from the #IPCC report on #mitigation, looking at what it means for the #waste sector. Spoiler: we need to cut emissions as fast and furious as we can, and reducing #waste, #plastic and being more materials efficient can help lots…
As the report points out, the #waste sector remains the largest contributor to urban emissions after the energy sector, even in low-carbon #cities. Urban areas themselves represent the lion’s share of global emissions, and it's increasing: from 60% in 2000 to 67% in 2015.
So, the @IPCC_CH #ClimateReport recognises that cities can significantly reduce emissions, but this requires systemic transformation: #circulareconomy, #inclusion, #equity, innovative technologies can make a huge contribution towards low carbon urban devel'mnt

The 5 takeaways
Read 10 tweets
After quick reading @environmentca new Emissions Reduction Plan, two major (& predictable) blindspots have emerged. A short 🧵 #ERP #cdnpoli #climatecrisis 1/7
2/7 FINANCE: describes modest historical process, without providing any path forward for aligning financial regulations with #ParisAgreement for regulated finance institutions/crowns, mandatory #ClimateRisk disclosure, stronger capital adequacy requirements, mandate changes, etc
3/7 FINANCE: Under #SFAC, finance institutions are regulating themselves. Major Canadian #banks lobby against mandatory #climaterisk disclosure & are #greenwashing #sustainablefinance - major policy reforms are needed & are missing here.…
Read 7 tweets
Après plusieurs reports, la centrale au #gaz de #Landivisiau en #Bretagne va être mise en service commercial le 31 mars.…
Et certaines réalités sur cette nouvelle centrale thermique à flamme méritent d'être rappelées.
Fil 🧵⬇️
L'opérateur de #Landivisiau, la Compagnie électrique de Bretagne (filiale de #TotalEnergies), percevra une subvention annuelle de 40 millions d'euros, payée par #EDF au titre du contrat de rémunération de capacité, comme les autres centrales gaz en France.…
La centrale de #Landivisiau va émettre 365 grammes équivalent #CO2 par kWh (, soit 60 fois plus qu'une centrale #nucléaire française, sans compter les fuites de #méthane des installations et du réseau de gaz.
Read 11 tweets
We released the expanded @IEA Global #Methane Tracker today with our latest estimates of emissions and abatement potential. 🔗

For the first time, we've built in info on policies and regulations. I want to highlight a few interesting findings.

Over 110 countries joined the #GlobalMethanePledge last year, which targets a 30% reduction in human-caused methane by 2030.

But without concrete policies and regulations, the world won't meet this target. Voluntary action by companies alone won't be enough.

Today's new policies page of the Tracker shows what tried and tested policies can achieve.

These policies have already been proven effective. If every country adopted them, emissions from the oil and gas sector could be cut in half.

Read 9 tweets
There is so much talk about the risks of being dependent on Russian #gas. But what are other risks of natural gas?🧐 Answers provides this freshly published literature overview on the risks and challenges of #FossilGas:… (1/6)
(2/6) The reviewed literature highlights the barriers natural gas poses to sustainability transitions: Natural gas has a significant negative impact on the climate & natural gas use is likely incompatible with long-term climate targets.
(3/6) Only little research exists on natural gas' potential to delay sustainability transitions, with the few studies identified (by screening more than 4,500 studies with #CADIMA) highlighted on the map. This paper is a comprehensive compilation of hitherto disperse evidence.
Read 6 tweets
Une équipe internationale de chercheurs, dont @tlaval_pa et @ciais_philippe du LSCE, viennent de publier une étude dans Science quantifiant les sources « ultra-émettrices » de #méthane – puissant gaz à effet de serre – de l'industrie pétro-gazière.

En partenariat avec l'entreprise française @Kayrros spécialisée dans la mesure et l'analyse de données environnementales et climatiques, les chercheurs ont détecté et quantifié le méthane émis par les sources les + intenses de l'industrie pétro-gazière (> 25 tonnes/heure).

Ces « ultra-émetteurs » de méthane sont principalement localisés au Turkménistan, en Russie, aux États-Unis, en Iran, en Algérie et au Kazakhstan.

Read 9 tweets
Le dispositif #ARENH a créé un avantage énorme aux #FournisseursAlternatifs et a entrainé pour @EDFofficiel déboires industriels et difficultés économiques qui ont fait exploser son #endettement

En 2021, 81 concurrents d’@EDFofficiel lui ont acheté 100TWh d’#électricité à un prix de 42€ le MWh.
Si ces fournisseurs vendent en moy. cette électricité à 142€ le MWh sur le marché #SPOT 👉🏼la perte pour EDF est de 10 Mds € (100€ x 100 millions MWh)…
Read 21 tweets
(1/8) A few thoughts on the current debate about the #EUTaxonomy on sustainable energy finance, especially the classification of #gaspower and #nuclear.
(2/8) #Nuclear power has a very peculiar risk profile. It certainly is climate-friendly, with small life-cycle CO2 emissions (like wind and PV). But its waste problem and nuclear accident risks are unique. Ultimately a value judgement whether or not these eco-risks are acceptable
(3/8) The true risk about #nuclear for climate change mitigation: Its track record of delays and cost overruns. New nuclear power makes for a very risky and costly bet for reaching climate targets. Just look at #Olkiluoto, #Flamanville, #HinkleyPoint. #FalsePromise?
Read 8 tweets
🚨Preprint Alert🚨IT'S HERE!

For the first time, we use a large-scale controlled study of O&G #methane emissions to answer a basic question: How effective are commonly used Leak Detection & Repair (LDAR) programs?

There's a LOT we learnt here. Thread: 1/…
EPA has proposed regulations to reduce #methane emissions from O&G sector. If global energy sector methane were a country, it would be the third largest emitter behind only China & US.

Key part of these regs are leak detection & repair (LDAR) programs. 2/…
LDAR program are where O&G operators survey their facilities with IR cameras to find and fix leaks (see NYT article for videos).

But, we didn't really know if these LDAR programs are effective in reducing #methane, beyond anecdotal evidence. Until now! 3/…
Read 15 tweets
CAT global update: Glasgow has a credibility gap between talk and action. If all govts met their 2030 targets, we would have 2.4˚C of warming in 2100. But right now, current policies put us at 2.7˚C.
A Thread 🧵
The 2030 #emissionsgap has only closed by 15-17% in the past year. Global GHG’s in 2030 will still be twice as high as what’s needed for 1.5˚C
There’s still a massive 19-23 gigatonne gap betw 2030 targets & 1.5˚C compatibility in 2030. These are the countries impacting the gap. What’s stopping action? #natgas & #coal. Still too much coal in the pipeline, and gas is still a fossil fuel /4
Read 8 tweets
Savez-vous pourquoi le gaz fossile est appelé "gaz naturel" ?

Il est certes naturel au sens où il provient de l'environnement, comme le #pétrole et le #charbon, mais pourquoi l'avoir précisé dans son nom ?


Photo : plateforme pétro-gazière de Draugen en mer du Nord
Contrairement à une idée répandue, il ne s'agit pas d'une tentative de greenwashing.

L'explication remonte au XVIIIe siècle lorsque les villes s'équipaient de "gaz de ville" (aussi appelé "gaz manufacturé"), d'abord pour l'éclairage, puis plus tard pour le chauffage.

Le gaz de ville était un gaz de synthèse produit à partir de #charbon dans des usines à gaz (dont le nom est resté en français pour désigner quelque-chose de complexe).


Photo : ancienne usine à gaz de la Villette, BNF-Gallica
Read 9 tweets
Only a few days into @COP26, we’re already hearing global commitments and plans. This will all culminate in a day dedicated to the built environment next week. In the meantime, I’ll share my #COP26 thoughts in this thread.
I encourage you all to explore this wonderful virtual exhibition of the world's greenest buildings at @COP26. These projects serve as examples to all of us in the real estate and building sectors. @wef…
As I’ve said many times, @COP26 must be a turning point for the real estate industry. Buildings are responsible for 40% of carbon emissions worldwide. Action from this industry is crucial to meeting climate goals.…
Read 42 tweets
The #GlobalMethanePledge is being launched now at COP26. Result of a massive diplomatic effort by the #EU and the #US, the pledge has now joined over 80 signatories, covering over 2/3 of the global GDP and about 46% of the global #methane emissions. 1/8…
The signatories pledge to cut 30% of global CH4 emissions by 2030, targeting all major emitting sectors #agriculture, #waste, #energy. This is a major step forward & the first time CH4 made it to the top of Global Leaders' priorities list. Many more steps needed looking ahead 2/8
The pledge covers emissions that can be reduced via targeted measures - a lot, but not enough to keep CH4 emissions aligned with 1.5C goal. another 10-15% of reductions must take place via indirect measures incl. #energyefficiency and changes in energy consumption patterns 3/8
Read 8 tweets
Wide-ranging plan to reduce #methane emissions announced by the @WhiteHouse.…
Reaction to proposed #methane rule from @APIenergy. Image
At #COP26, @POTUS says "it's approaching 100 countries that are signing on" to the pledge to reduce #methane. Image
Read 6 tweets
The Heat is On🔥🌍
A world of climate promises not yet delivered

Today we’ve publish the @UNEP #EmissionsGap report

Good news:
we are doing increasingly better closing in on 2°C
Bad news:
it is still far from meeting the goals of the #ParisAgreement

A short thread (1/n)
The @UNEP #emissionsgap report takes stock of current pledges of countries and compares them to where emissions emissions should be going to limit warming to 1.5°C or 2°C.

The difference is called the emissions gap.
The latest @UNEP #EmissionsGap Report finds new and updated Nationally Determined Contributions only take 7.5% off predicted 2030 emissions compared to previous commitments. Reductions of 30% are needed to stay on the least-cost pathway for 2°C and 55% for 1.5°C. (3/n)
Read 15 tweets
I'm out here in WY near the Wind River Range to measure #methane emissions. As I write this, EPA is working on releasing updated methane regulations.

Let me tell you why this is not necessarily bad news. A thread on the complexity of #methane accounting: 1/
First, why is #methane fee a great idea? Recent data show that #methane emissions from operators vary by many orders of magnitude. So it makes sense that under a fee, responsible operators will be rewarded and those with high emissions will be penalized.
So, what's the issue with BBB proposal? Fee is entirely based on self-reporting to EPA GHGRP. 2 problems:

1) Emissions are underestimated in EPA report
2) Only facilities >25000 CO2e required to report

This sets up potential for fraud as it's easy to reduce emissions on paper.
Read 9 tweets
Editing the media: @grist
TRUE: "Cutting methane emissions is the fastest way to slow warming."
NOT TRUE: "three relatively cheap ways to tamp down on emissions."

Misleading terms used: seep/seepage/leak…
In 1995, I moved to a farm in Wise County where the “Father of #fracking” experimented with fracking.

I parked on the side of the road and I watched them, learned, documented, then researched.

My air turned brown and my water turned black.…
For 20+ yrs, I directly observed #oilandgas operations. For 7+ years, I've made invisible #methane emissions visible with OGI technology.

I observed > formed questions > did research > formed a hypothesis > observed > collected data/evidence

Went public.
Got ridiculed.

Read 9 tweets
Good read on #methane and @APIenergy ...ALMOST.

The fact that oil and gas is still paying API to obstruct regulations and lie to the public is more PROOF that we should not believe any of their climate promises.
Here is where this article fails:

"staunching the flow of methane is achievable and affordable—commonly at the level of such basic things as swapping component parts, monitoring for leaks, and stopping venting and flaring."

Sound simple? The author is an analyst.
To quote EDF's lead scientist, “Things won’t work like they’re supposed to work on paper,”…
Read 4 tweets
There’s a gaping (loop)hole in #climate reporting, calculations & countermeasures—#BlueCarbon!

Must finally put #Seabed #CarbonSink on agenda for #COP26...

Here too #China leads world in #carbon damage—by far.

Time for accountability on #RoadToGlasgow!…
#Ocean covers 71% of world’s surface..<10% mapped w/ modern sonar.

Salt marshes, mangroves, seagrass beds & ultra-deep abyssal #seabed absorb large quantities of #CO2 from atmosphere & balancing critical #climate systems.

Disrupting risks grave & potentially irreversible harms
.@Nature: “#marine sediments are the largest pool of organic #carbon on the planet.”

Est. vol. ~7 trillion metric tons—>3X cumulative anthropogenic #CO2 emissions since 1750.

Bottom trawl #fishing & #seabed mining—both #PRC-led—risk damaging disruption.…
Read 25 tweets

~0.35%. That’s the annual methane reduction needed for agriculture CH4 to be #ClimateNeutral. Reduce ~5% annually, we can neutralize all additional warming from ag CH4 since the '80s. WE CAN DO THIS!

More on @CGIARclimate & @nature_org paper ⬇️ 1/
GWP* vs GWP100 better describes how #methane emissions impact the climate. Using GWP100 overestimates the warming impact of constant CH4 emissions by 3-4 times.

AND GWP100 misses climate benefits with decreasing emissions.

AND undersells warming when CH4 emissions rise.

Why is GWP* important? From the paper: GWP* emphasizes CH4 reductions can only contribute meaningfully to limiting climate change, as long as CO2 hits net-zero.

GWP* shows the true benefits w/ CH4 cuts. Making the work farmers/ranchers are doing to cut CH4 more significant. 3/
Read 12 tweets
Bonjour @Fanny_Agostini ! Suite à votre chronique sur @Europe1 ce matin sur le #méthane entérique des bovins, je me permets de préciser quelques éléments.

#thread à dérouler ⤵️

#ceuxquifontlelait #FrAgTw
La très large majorité du #méthane émis est éructé et ne provient donc pas des flatulences des bovins !
#ceuxquifontlelait #ceuxquifontlaviande…
⚠️ Sachez par ailleurs qu'une vache qui digère bien émet... davantage de #méthane qu'une vache qui digère mal !!!

En effet, elle parvient à valoriser davantage les aliments de la ration dont les ressources cellulosiques et donc elle émet + de méthane !
Read 11 tweets

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