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#methane

danie10@squeet.me
Danie

(LPG) Household Gas Stoves Emit Pollution Even When Not In Use!

Bild/Foto
It is widely known that gas production and transportation both result in methane leakage, but a new study found that appliances, such as stoves, leak dangerous methane — even when they are not being used. These results are concerning because methane is a powerful climate pollutant that has a global warming potential (GWP) 86 times more than carbon dioxide over a 20-year time period.

Methane gas is one of the most potent greenhouse gases and accounts for about 25 percent of global warming. Methane makes up 70–90 percent of natural gas, which is used in our homes for cooking and heating. Previous studies have highlighted the presence of a pulse of methane leakage every time a tankless gas-powered water heater is turned on and off, and this most recent study shows that this problem of leakage is even greater than previously thought as it occurs in gas stoves also.

Methane is not the only dangerous pollutant emitted from stoves and other gas appliances such as space and water heaters, as nitrogen oxides (NOx) are also released into our homes when gas is burned and have been shown to cause respiratory diseases, headaches, eye irritation, and loss of appetite.

See https://cleantechnica.com/2022/03/08/gas-stoves-emit-pollution-even-when-not-in-use/

#environment #airpollution #methane #gas #health
#Blog, ##airpollution, ##environment, ##gas, ##health

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luca972@joindiaspora.com
Luca Mangini

LA RAPIDA ELIMINAZIONE GLOBALE DELL'AGRICOLTURA ANIMALE HA LA POTENZIALITA’ DI STABILIZZARE I LIVELLI DI GAS SERRA PER 30 ANNI E COMPENSARE IL 68% DELLE EMISSIONI DI CO2 DI QUESTO SECOLO.

❇️ L'agricoltura animale contribuisce in modo significativo al riscaldamento globale attraverso le continue emissioni dei potenti gas serra metano e protossido di azoto e lo spostamento del carbonio della biomassa sui terreni utilizzati per allevare il bestiame.

❇️ Tuttavia, poiché le stime dell'entità dell'effetto della fine dell'agricoltura animale spesso si concentrano su un solo fattore, il pieno potenziale beneficio di un cambiamento più radicale rimane sottovalutato.

❇️ In questo studio è stato quantificato l'intero “climate opportunity cost” dell'attuale produzione zootecnica globale, modellando gli effetti combinati a lungo termine delle riduzioni delle emissioni e del recupero della biomassa che sarebbero sbloccati da una graduale eliminazione dell'agricoltura animale.

❇️ In assenza di altre riduzioni delle emissioni, in questo studio si dimostra come cali persistenti dei livelli atmosferici di metano e protossido di azoto e un più lento accumulo di anidride carbonica, a seguito di un graduale abbandono della produzione zootecnica, avrebbero, fino alla fine del secolo, lo stesso effetto cumulativo sul potenziale di riscaldamento dell'atmosfera di una riduzione di 25 gigatonnellate all'anno delle emissioni di CO2 antropogeniche, garantendo la metà della riduzione netta delle emissioni necessarie per limitare il riscaldamento a 2°C.

❇️ L'entità e la rapidità di questi effetti potenziali dovrebbero porre la riduzione o l'eliminazione dell'agricoltura animale in prima linea nelle strategie per evitare disastrosi cambiamenti climatici.

👉 FONTE: Eisen MB, Brown PO (2022) Rapid global phaseout of animal agriculture has the potential to stabilize greenhouse gas levels for 30 years and offset 68 percent of CO2 emissions this century. PLOS Clim 1(2): e0000010. doi:10.1371/journal.pclm.0000010

THE FAST GLOBAL ELIMINATION OF ANIMAL AGRICULTURE HAS THE POTENTIAL TO STABILIZE GREENHOUSE GAS LEVELS FOR 30 YEARS AND OFFSET 68% OF THE CO2 EMISSIONS OF THIS CENTURY.

❇️ Animal agriculture contributes significantly to global warming through the continued emissions of the potent greenhouse gases methane and nitrous oxide and the shifting of biomass carbon onto land used to raise livestock.

❇️ However, as estimates of the magnitude of the effect of ending animal agriculture often focus on just one factor, the full potential benefit of more radical change remains underestimated.

❇️ In this study the entire "climate opportunity cost" of current global livestock production was quantified, modeling the long-term combined effects of emissions reductions and biomass recovery that would be unlocked by a gradual elimination of animal agriculture.

❇️ In the absence of other emission reductions, this study demonstrates how persistent drops in atmospheric levels of methane and nitrous oxide and a slower accumulation of carbon dioxide, following a gradual abandonment of livestock production, would have, until the end of the century, the same cumulative effect on the warming potential of the atmosphere as a reduction of 25 gigatonnes per year in anthropogenic CO2 emissions, ensuring half the net reduction in emissions needed to limit warming to 2 ° C.

❇️ The magnitude and rapidity of these potential effects should place the reduction or elimination of animal agriculture at the forefront of strategies to avoid disastrous climate change.

👉 SOURCE: Eisen MB, Brown PO (2022) Rapid global phaseout of animal agriculture has the potential to stabilize greenhouse gas levels for 30 years and offset 68 percent of CO2 emissions this century. PLOS Clim 1 (2): e0000010. doi: 10.1371 / journal.pclm.0000010

L'ÉLIMINATION RAPIDE MONDIALE DE L'AGRICULTURE ANIMALE A LE POTENTIEL DE STABILISER LES NIVEAUX DE GAZ À EFFET DE SERRE PENDANT 30 ANS ET DE COMPENSER 68 % DES ÉMISSIONS DE CO2 DE CE SIÈCLE.

❇️ L'agriculture animale contribue de manière significative au réchauffement climatique en raison des émissions continues de puissants gaz à effet de serre que sont le méthane et l'oxyde nitreux et du déplacement du carbone de la biomasse vers les terres utilisées pour l'élevage du bétail.

❇️ Cependant, comme les estimations de l'ampleur de l'effet de la fin de l'agriculture animale se concentrent souvent sur un seul facteur, le bénéfice potentiel total d'un changement plus radical reste sous-estimé.

❇️ Dans cette étude, l'ensemble du "coût d'opportunité climatique" de la production animale mondiale actuelle a été quantifié, modélisant les effets combinés à long terme des réductions d'émissions et de la récupération de la biomasse qui seraient débloqués par une élimination progressive de l'agriculture animale.

❇️ En l'absence d'autres réductions d'émissions, cette étude démontre comment des baisses persistantes des niveaux atmosphériques de méthane et de protoxyde d'azote et une accumulation plus lente de dioxyde de carbone, suite à un abandon progressif de l'élevage, auraient, jusqu'à la fin du siècle, le même effet cumulé sur le potentiel de réchauffement de l'atmosphère qu'une réduction de 25 gigatonnes par an des émissions anthropiques de CO2, assurant la moitié de la réduction nette des émissions nécessaire pour limiter le réchauffement à 2°C.

❇️ L'ampleur et la rapidité de ces effets potentiels devraient placer la réduction ou l'élimination de l'agriculture animale au premier plan des stratégies pour éviter un changement climatique désastreux.

👉 SOURCE : Eisen MB, Brown PO (2022) L'élimination mondiale rapide de l'agriculture animale a le potentiel de stabiliser les niveaux de gaz à effet de serre pendant 30 ans et de compenser 68 % des émissions de CO2 de ce siècle. PLOS Clim 1 (2) : e0000010. doi : 10.1371 / journal.pclm.0000010

LA ELIMINACIÓN GLOBAL RÁPIDA DE LA AGRICULTURA ANIMAL TIENE EL POTENCIAL DE ESTABILIZAR LOS NIVELES DE GASES DE EFECTO INVERNADERO DURANTE 30 AÑOS Y COMPENSAR EL 68% DE LAS EMISIONES DE CO2 DE ESTE SIGLO.

❇️ La agricultura animal contribuye significativamente al calentamiento global a través de las continuas emisiones de los potentes gases de efecto invernadero metano y óxido nitroso y el desplazamiento del carbono de la biomasa a la tierra utilizada para criar ganado.

❇️ Sin embargo, dado que las estimaciones de la magnitud del efecto de acabar con la agricultura animal a menudo se centran en un solo factor, el beneficio potencial completo de un cambio más radical sigue subestimado.

❇️ En este estudio se cuantificó todo el "costo de oportunidad climático" de la producción ganadera mundial actual, modelando los efectos combinados a largo plazo de la reducción de emisiones y la recuperación de biomasa que se desbloquearían con una eliminación gradual de la agricultura animal.

❇️ En ausencia de otras reducciones de emisiones, este estudio demuestra cómo las caídas persistentes en los niveles atmosféricos de metano y óxido nitroso y una acumulación más lenta de dióxido de carbono, luego de un abandono gradual de la producción ganadera, habrían tenido, hasta el final del siglo, el mismo efecto acumulativo sobre el potencial de calentamiento de la atmósfera que una reducción de 25 gigatoneladas por año en las emisiones antropogénicas de CO2, asegurando la mitad de la reducción neta de emisiones necesaria para limitar el calentamiento a 2 °C.

❇️ La magnitud y rapidez de estos efectos potenciales deberían colocar la reducción o eliminación de la ganadería al frente de las estrategias para evitar un cambio climático desastroso.

👉 FUENTE: Eisen MB, Brown PO (2022) La rápida eliminación global de la agricultura animal tiene el potencial de estabilizar los niveles de gases de efecto invernadero durante 30 años y compensar el 68 por ciento de las emisiones de CO2 este siglo. PLOS Clim 1 (2): e0000010. doi: 10.1371 / diario.pclm.0000010

Η ΓΡΗΓΟΡΗ ΠΑΓΚΟΣΜΙΑ ΕΞΑΛΕΙΨΗ ΤΗΣ ΖΩΟΚΑΛΛΙΕΡΓΕΙΑΣ ΕΧΕΙ ΤΗ ΔΥΝΑΤΟΤΗΤΑ ΝΑ ΣΤΑΘΕΡΟΠΟΙΗΣΕΙ ΤΑ ΕΠΙΠΕΔΑ ΑΕΡΙΩΝ ΤΟΥ ΘΕΡΜΟΚΗΠΙΟΥ ΓΙΑ 30 ΧΡΟΝΙΑ ΚΑΙ ΝΑ ΑΝΤΙΣΤΑΘΜΙΣΕΙ ΤΟ 68% ΤΩΝ ΕΚΠΟΜΠΩΝ CO2 ΑΥΤΟΥ ΤΟΥ ΑΙΩΝΑ.

❇️ Η κτηνοτροφία συμβάλλει σημαντικά στην υπερθέρμανση του πλανήτη μέσω των συνεχιζόμενων εκπομπών των ισχυρών αερίων του θερμοκηπίου μεθανίου και οξειδίου του αζώτου και της μετατόπισης του άνθρακα της βιομάζας σε γη που χρησιμοποιείται για την εκτροφή ζώων.

❇️ Ωστόσο, καθώς οι εκτιμήσεις για το μέγεθος της επίδρασης του τερματισμού της κτηνοτροφίας συχνά επικεντρώνονται σε έναν μόνο παράγοντα, το πλήρες πιθανό όφελος από πιο ριζικές αλλαγές παραμένει υποτιμημένο.

❇️ Σε αυτή τη μελέτη ποσοτικοποιήθηκε ολόκληρο το «κλιματικό κόστος ευκαιρίας» της τρέχουσας παγκόσμιας κτηνοτροφικής παραγωγής, μοντελοποιώντας τις μακροπρόθεσμες συνδυασμένες επιπτώσεις της μείωσης των εκπομπών και της ανάκτησης βιομάζας που θα ξεκλειδώνονταν με μια σταδιακή εξάλειψη της κτηνοτροφίας.

❇️ Ελλείψει άλλων μειώσεων εκπομπών, αυτή η μελέτη καταδεικνύει πόσο επίμονες πτώσεις στα ατμοσφαιρικά επίπεδα μεθανίου και οξειδίου του αζώτου και βραδύτερη συσσώρευση διοξειδίου του άνθρακα, μετά από μια σταδιακή εγκατάλειψη της κτηνοτροφικής παραγωγής, θα είχαν, μέχρι το τέλος του αιώνα, η ίδια σωρευτική επίδραση στο δυναμικό θέρμανσης της ατμόσφαιρας με τη μείωση κατά 25 γιγατόνους ετησίως στις ανθρωπογενείς εκπομπές CO2, διασφαλίζοντας το ήμισυ της καθαρής μείωσης των εκπομπών που απαιτούνται για τον περιορισμό της θέρμανσης στους 2 °C.

❇️ Το μέγεθος και η ταχύτητα αυτών των πιθανών επιπτώσεων θα πρέπει να θέσει τη μείωση ή την εξάλειψη της κτηνοτροφίας στην πρώτη γραμμή των στρατηγικών για την αποφυγή της καταστροφικής αλλαγής του κλίματος.

👉 ΠΗΓΗ: Eisen MB, Brown PO (2022) Η ταχεία παγκόσμια σταδιακή κατάργηση της κτηνοτροφίας έχει τη δυνατότητα να σταθεροποιήσει τα επίπεδα αερίων του θερμοκηπίου για 30 χρόνια και να αντισταθμίσει το 68 τοις εκατό των εκπομπών CO2 αυτόν τον αιώνα. PLOS Clim 1 (2): e0000010. doi: 10.1371 / journal.pclm.0000010

全球快速消除畜牧业有可能使温室气体水平稳定 30 年，并抵消本世纪 68% 的二氧化碳排放量。

❇️ 畜牧业通过持续排放强效温室气体甲烷和一氧化二氮以及将生物质碳转移到用于饲养牲畜的土地上，对全球变暖做出了重大贡献。

❇️ 然而，由于对结束畜牧业的影响程度的估计通常只关注一个因素，因此仍然低估了更激进变革的全部潜在好处。

❇️ 在这项研究中，量化了当前全球畜牧业生产的整个“气候机会成本”，模拟了排放减少和生物量恢复的长期综合影响，这将通过逐步消除畜牧业来解锁。

❇️ 在没有其他减排措施的情况下，这项研究表明，在逐渐放弃畜牧生产后，大气中甲烷和一氧化二氮水平的持续下降以​​及二氧化碳的缓慢积累将如何持续到本年度结束世纪，对大气变暖潜力的累积效应与每年减少 25 吉吨的人为二氧化碳排放量相同，确保将升温限制在 2°C 所需的净排放量减少一半。

❇️ 这些潜在影响的规模和速度应将减少或消除畜牧业置于避免灾难性气候变化的战略的最前沿。

👉 资料来源：Eisen MB，Brown PO（2022 年）全球快速淘汰畜牧业有可能在 30 年内稳定温室气体水平并抵消本世纪 68% 的二氧化碳排放量。 PLOS Clim 1 (2)：e0000010。 doi: 10.1371 / journal.pclm.0000010

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anonymiss@despora.de
anonymiss

Scientists raise #alarm over ‘dangerously fast’ growth in atmospheric #methane

source: https://www.nature.com/articles/d41586-022-00312-2

The growth of methane emissions slowed around the turn of the millennium, but began a rapid and mysterious uptick around 2007. The spike has caused many researchers to worry that global warming is creating a feedback mechanism that will cause ever more methane to be released, making it even harder to rein in rising temperatures.

#climate #warming #greenhouseEffect #atmosphere #problem #science #crisis #earth #future #environment #temperature

Scientists raise alarm over ‘dangerously fast’ growth in atmospheric methane

As global methane concentrations soar over 1,900 parts per billion, some researchers fear that global warming itself is behind the rapid rise.

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anonymiss@despora.de
anonymiss

Copernicus: Globally, the seven hottest years on record were the last seven; #carbon #dioxide and #methane concentrations continue to rise

source: https://climate.copernicus.eu/copernicus-globally-seven-hottest-years-record-were-last-seven

enter image description here

Anyone who still claims not to believe in #climate #change is just a hopeless idiot.

#warming #temperature #crisis #earth #environment #nature #future #humanity #science #statistics #problem #news

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wurstaufbrot@pod.geraspora.de
N. Felibata 👽

#COP26: As #carbon #emissions rise unabated, scientists eye a #methane removal fix

by Justin Catanoso on 8 November 2021

(we are doomed LOL 🤣)

  • The COP26 climate summit has moved into its second week, with no major climate change breakthroughs in sight. Just as alarming is a new investigation released today by The Washington Post showing that the world’s nations are hugely underreporting carbon emissions, making the race to truly curb carbon emissions even more urgent.
  • As a result, COP26 negotiators and scientists are shifting their immediate attention from not only cutting CO2 emissions, but also slashing methane (CH4) emissions from fossil fuel, agricultural, and landfill sources. A hundred nations last week pledged to reduce methane emissions by 30% by 2030.
  • Some scientists think they know the answer, suggesting a variety of engineering solutions to achieve rapid methane removal from the atmosphere — solutions which have been successful in the lab but remain untested in nature. COP26 attendees are said to be showing significant interest in this potential technology fix.
  • However, there are numerous concerns, including the possible unforeseen public health and environmental impacts of methane removal technology, the challenge of upscaling and implementing the various proposed methods, and finding funding for the work. Perhaps the biggest hurdle is time, as climate change escalates apace.

GLASGOW, Scotland — Carbon dioxide emissions from energy and transportation have long taken center stage at United Nations climate summit negotiations. But here at COP26, in cold, rainy Scotland, methane, a far more potent heat-trapping gas, is grabbing a share of the spotlight for the first time.

With good reason.

Methane only exists at roughly 2 parts per million in the atmosphere, compared to 412 parts per million for CO2. But the methane molecule (CH4) traps as much as 85 times more heat than the more abundant polluting CO2. But while carbon dioxide remains in the sky like a warming blanket for hundreds of years, methane largely dissipates in roughly a decade — making it a ripe target for nations to attack in their effort to slow the ominous quickening pace of global warming.

https://news.mongabay.com/2021/11/as-carbon-emissions-rise-unabated-scientists-eye-a-methane-removal-fix/

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