A new study shows that volcanism 56 million years ago released more methane than previously thought, and that methane emissions from hydrothermal vents were responsible for global warming about 55 million years ago. The vents were active in very shallow water depth or even above sea level, which would have allowed much larger amounts of methane to enter the atmosphere. #ClimateChange #MethaneEmissions #HydrothermalVents https://www.eurasiareview.com/06082023-past-climate-warming-driven-by-hydrothermal-vents/

To measure #greenhousegasemissions in large #urbancenters, a research team searched and identified numerous previously unknown sources of escaping #methane in #Hamburg, e.g. gas leaks: http://go.tum.de/147494

#methaneemissions #globalwarming

📷R.Pawlowski

RT @MethaneData
There's been a dearth of data on #MethaneEmissions from Africa’s offshore oil and gas sector for decades.

IMEO is changing that with a new study conducted with @DLR_en that charts how much methane is spilling from wells off the coast of Angola and Gabon.

https://www.youtube.com/watch?v=vCo9sNdSLUE

To illustrate the error inherent in including natural #CarbonCycle #CowFarts in #footprint calculations...

Consider that 1/3 of all #MethaneEmissions come from #wetlands. https://svs.gsfc.nasa.gov/5054

CO2 drawn down by photosynthesis and stored in plant material is going to return to the atmosphere via decomposition - be it land, stomach, or wetland processes.

Should we consider a developer's plan to destroy a wetland carbon negative because of methane? that would obviously be ridiculous

Satellites now play a crucial role in our understanding of what is causing CO2 & CH4 to rise.

Analysing satellite data for last year the team at Kayrros (https://www.kayrros.com) identified 1,005 CH4 super-emitter events in 2022, of which 559 were from oil and gas fields, 105 from coalmines, and 340 from waste sites, such as landfills.

These are pictured.

More about CH4 emissions here: https://www.nasa.gov/feature/jpl/methane-super-emitters-mapped-by-nasa-s-new-earth-space-mission

#ClimateLiteracy #MethaneEmissions

#Grist: It would take less than 3% of #BigOil’s profits to clean up #MethaneEmissions

"There is just no excuse" for the rise in methane emissions, IEA director says.

Emily Pontecorvo

#ClimateChange

75% of energy-related methane emissions can be eliminated with available technologies at a cost of ~$100 billion. That’s less than 3% of oil & gas profits last year. Producers could capture & sell methane. About 17% of US emissions could be reduced at no net cost.

https://grist.org/energy/big-oil-record-2022-profits-methane-emissions-iea/?utm_medium=email&utm_source=newsletter&utm_campaign=weekly

AAAS: "Global alarm system watches for methane superemitters" Methane is sometimes considered a stealth greenhouse, escaping unpredictably from gas fields, pipelines, + end-use applicance. Now large, even short-lived leaks can be detected automatically, from space, anywhere in the world — with an eye toward plugging them + slowing climate change. "New technique, which uses artificial intelligence (AI) to scan through the 12 million daily observations collected by a European satellite, could aid future efforts to spot plumes in data collected by satellites, such as the International Methane Emissions Observatory announced in 2021 by the United Nations." The preprint of the article arrived late last month, in 1 of my favorite journals, Atmospheric Chemistry and Physics, which now is posting weekly results on its website. "Last month alone, they detected 192 methane plumes—some persistent, some intermittent—with an emissions rate greater than 10 tons per hour, concentrated in Asia but popping up on every continent except Antarctica." Since 2006, methane levels in the atmosphere have grown 7%, + the gas is the culprit for approximately 1/3 of the 1.2ºC warming since preindustrial times. More satellites are on the way, including 'Carbon Mapper, a $100 million project that later this year will launch a pair of satellites.' But be aware of "distributed sources, including tropical wetlands, which could be emitting more methane in response to warming." #methaneemissions #climatechange

#Grist: A major #dairy company plans to slash #MethaneEmissions — but there’s an elephant in the room

Can Danone reach its climate goals without scaling back factory farming?

Joseph Winters

https://grist.org/agriculture/a-major-dairy-company-plans-to-slash-methane-emissions-but-theres-an-elephant-in-the-room/?utm_medium=email&utm_source=newsletter&utm_campaign=daily

Methane emissions from offshore oil underreported https://www.abc.net.au/news/2023-02-01/methane-emissions-from-offshore-oil-gas-energy-under-reported/101912200 #methane #methaneemissions #climate #ClimateChange

Airlines and cattle ranchers have beef with Google’s climate math - Enlarge (credit: Damien Meyer/Getty Images)

Flying premium fro... - https://arstechnica.com/?p=1912662 #methaneemissions #climatechange #greenhousegas #syndication #airlines #science

Ars Technica: Airlines and cattle ranchers have beef with Google’s climate math https://arstechnica.com/?p=1912662 #Tech #arstechnica #IT #Technology #methaneemissions #climatechange #greenhousegas #syndication #airlines #Science

https://cordis.europa.eu/article/id/418240-tropical-dams-an-underestimated-source-of-greenhouse-gas-emissions TOWARDS A NEW UNDERSTANDING OF CARBON PROCESSING IN FRESHWATERS: METHANE EMISSIONS HOT SPOTS AND CARBON BURIALHYDROCARB Overall budget € 1 798 226,601 EUROPEAN RESEARCH COUNCIL Hosted by UPPSALA UNIVERSITET Sweden Sept 2013 - 31 Aug 2019#hydrocarb #tropicalreservoir #methaneemissions #tropicaldam #greenhousegasemissions #hydropower #carbonsink #sediment

Adding biochar to dairy’s manure-composting process reduces methane emissions by 84 percent https://innovationtoronto.com/2022/12/adding-biochar-to-dairys-manure-composting-process-reduces-methane-emissions-by-84-percent/

#methane #biochar #methaneemissions

Tales from the Fight Against #ClimateChange: Keeping People Honest on #MethaneEmissions - *CATALYST* calls on #methanedetection #satellite experts to help secure a #methanereduction treaty.

Inspired by the great work of #ghgsat #europeanspaceagency #nasa #environmentaldefensefund & others

Please support this #webcomic -
https://heroes21stcentury.com/support/

#MethaneMitigationSummit #scicomm #stem #space #climateaction

RT @thuega: Thanks to @MariaSpyraki for hosting the @Eurogas_Eu panel at #EUParliament on reducing #methaneemissions across the #naturalgas value chain. Eva Hennig from #Thüga said: „As a member of #OGMP we suggest building on those rules to create a global standard for #methaneemissions.“

🐦🔗: https://n.respublicae.eu/MariaSpyraki/status/1598405721359613971

RT @GIEBrussels: "Gas industry can & is willing to contribute to the development of the best and most effective #methaneemissions regulation, applicable not only in the #EU but worldwide."
@AchovskiBoyana

Gas infrastructure is taking action for #decarbonisation, see 👉 https://www.gie.eu/press-corner/press-releases/

🐦🔗: https://nitter.eu/MariaSpyraki/status/1595371395642523652

Achieving the Global Methane Pledge goal of ✂️ anthropogenic #methaneemissions at least 30% by 2030 from 2020 levels is the fastest way to reduce near-term warming and necessary to keep a 1.5°C limit within reach.
Joint 🇪🇺🇺🇸 factsheet: https://europa.eu/!bjFCxN #cutmethane #COP27

🐦🔗: https://nitter.eu/Energy4Europe/status/1593283004927016961

Neue Studie: Shefali Sharma vom Institute for Agriculture and Trade Policy hat Recht: Die großen Fleisch- & Milchkonzerne befeuern die Klima-Krise. #MethaneEmissions Wir müssen raus aus der industriellen Fleisch-& Milchproduktion!

https://www.theguardian.com/environment/2022/nov/15/methane-emissions-meat-dairy-companies?CMP=Share_AndroidApp_Other

RT @Energy4Europe: UNEP @MethaneData announced the Methane Alert and Response System (MARS) today at #COP27.

MARS benefits from #EUfunding and is a new satellite-based system to detect #MethaneEmissions and transparently engage governments and businesses to respond and #CutMethane.

🐦🔗: https://nitter.eu/EEAthina/status/1591143970792681472

RT @Energy4Europe: UNEP @MethaneData announced the Methane Alert and Response System (MARS) today at #COP27.

MARS benefits from #EUfunding and is a new satellite-based system to detect #MethaneEmissions and transparently engage governments and businesses to respond and #CutMethane.

🐦🔗: https://nitter.eu/KadriSimson/status/1591011037964562432