Vereiste Böden der Arktis – Tickt am Meeresgrund eine Zeitbombe?
In der menschenleeren Tundra auf der Yamal-Halbinsel im Norden Sibiriens tauchten vor fast zehn Jahren mysteriöse Krater auf. Wie sich später herausstellte, hatte Methangas diese bis zu 60 Meter tiefen Löcher in die Landschaft gesprengt.
apocalypse rétroactions méthane océansGlobal warming could push tropical forest leaves past a ‘critical temperature’
Temperatures high enough to cause “irreversible damage” to a plant’s ability to photosynthesise are already impacting a small portion of tropical forest leaves, new research finds. This could increase to 1.4% under future warming conditions, the researchers say.
rétroactions forêtsBedarf nach Kühlung steigt - Heiss, heisser, Klimageräte
Seit 2010 ist der Stromverbrauch für Klimageräte in Privathaushalten stark gestiegen – allerdings auf tiefem Niveau. Die Nachfrage nach Klimageräten steigt: «Sobald es warm wird, klingelt das Telefon nonstop», sagt Petros Vagias.
rétroactions chaleur chauffer et refroidir Suisse* HEAT * Tropical forests face ‘massive leaf death’ from global heating, study finds
Tropical forests could become so hot that some kinds of leaves will no longer be able to conduct photosynthesis, according to a study published in the journal Nature. The photosynthetic machinery in tropical trees begins to fail at about 46.7C on average.
rétroactions forêts* FEUX DE FORETS * Les feux au Canada ont émis plus d'un milliard de tonnes de CO2
Cela correspond pratiquement aux émissions annuelles du Japon (1,12 milliard de tonnes de CO2 en 2021), le cinquième plus gros pollueur mondial, et davantage que les émissions annuelles de l'ensemble du secteur aérien mondial en 2022 (près de 0,8 milliard de tonnes de CO2).
rétroactions incendies* FOSSILENERGIE * China's July coal imports surge as heatwaves drive power use
Aug 8 (Reuters) - China's coal imports remained at elevated levels in July after overseas purchases nearly doubled in the first half of 2023, as utilities continued to bring in cheaper supplies to meet peak summer power demand, data showed on Tuesday. The world's top coal consumer imported 39.
Chine charbon rétroactionsForests Are Losing Their Ability to Hold Carbon
CLIMATEWIRE | U.S. forests could worsen global warming instead of easing it because they are being destroyed by natural disasters and are losing their ability to absorb planet-warming gases as they get older, a new Agriculture Department report says.
rétroactions forêts* HEAT * June Extremes Suggest Parts of the Climate System Are Reaching Tipping Points
June 2023 may be remembered as the start of a big change in the climate system, with many key global indicators flashing red warning lights amid signs that some systems are tipping toward a new state from which they may not recover.
apocalypse rétroactions chaleurUK heatwave prompts order to fire up coal plant to meet aircon demand
National Grid has asked a coal-fired power station in the east Midlands to warm up to cope with extra electricity demand for air conditioning as much of Britain swelters in the hot conditions.
charbon rétroactions chaleur Grande BretagneGlobal heating has likely made El Niños and La Niñas more ‘frequent and extreme’, new study shows
Global heating has likely intensified a climate pattern in the Pacific since the 1960s that has driven extreme droughts, floods and heatwaves around the globe, according to a new study.
rétroactions courent marinDas große Schmelzen an den Polen
Wer Roland Emmerichs Klima-Schocker "The Day After Tomorrow" kennt, der hat die Katastrophen-Szenen noch im Kopf. Ein Klimatologe, Jack Hall genannt, überlebt in dem Film nur knapp eine Antarktis-Expedition, während der sich eine riesige Eisscholle vom Larsen-B-Schelfeis löst.
rétroactions fonte des glaces courent marinIncreasingly Large and Intense Wildfires Hinder Western Forests’ Ability to Regenerate
As global warming threatens the long-term survival of many forests in the Western United States, a new study suggests that reducing the intensity and size of wildfires would help conifers regenerate after the destructive blazes that have become more frequent in recent decades.
rétroactions incendiesScientists Examine Dangerous Global Warming ‘Accelerators’
Skip to content Science Scientists Examine Dangerous Global Warming ‘Accelerators’ A new study categorizes climate feedback loops and the possibility they could push the climate past planetary tipping points. This aerial view taken on Aug.
apocalypse rétroactions** RECOMMENDED READING ** World risks descending into a climate ‘doom loop’, warn thinktanks
The world is at risk of descending into a climate “doom loop”, a thinktank report has warned. It said simply coping with the escalating impacts of the climate crisis could draw resources and focus away from the efforts to slash carbon emissions, making the situation even worse.
apocalypse rétroactionsAtmospheric dust may have hidden true extent of global heating
Dust that billows up from desert storms and arid landscapes has helped cool the planet for the past several decades, and its presence in the atmosphere may have obscured the true extent of global heating caused by fossil fuel emissions.
rétroactions** RECOMMENDED READING ** Has the Amazon Reached Its ‘Tipping Point’?
To hear more audio stories from publications like The New York Times, download Audm for iPhone or Android. One of the first times Luciana Vanni Gatti tried to collect Amazonian air she got so woozy that she couldn’t even operate the controls.
Ameriques Brésil déforestation apocalypse rétroactionsDie Ozonschicht und ihre Löcher – sind wir wirklich auf einem guten Weg? Die letzten Jahre deuten in eine andere Richtung
Die Ozonschicht ist auf gutem Wege, sich innerhalb der kommenden Jahrzehnte zu erholen: Diese optimistische Botschaft verlautbarte am Montag von Experten, die von den Vereinten Nationen mit einem Bericht beauftragt worden waren.
rétroactions trou d'ozoneWaldbrände: Teufelskreis aus Klima- und Umweltkrise
Extrem – für kaum ein Jahr verwendeten Klimawissenschaftler:innen dieses Wort so häufig wie für dieses. Neben diversen meteorologischen Rekorden ist es die weltweite Häufung von Extremwetterereignissen, die das Jahr 2022 hervorstechen lässt.
rétroactions incendiesLa pollution des transports est-elle «bonne» pour lutter contre le méthane?
En 2020, la concentration de méthane dans l'atmosphère a bondi alors que la pollution des transports chutait dans des proportions inédites du fait des confinements de la pandémie de Covid-19. Pour les chercheurs, il existe un lien entre les deux phénomènes — même s'il est contre-intuitif.
rétroactions méthaneA Warming Siberia, Wracked by Wildfires, Nears a Crucial Threshold
Nearly 23 million acres burned from 1982 to 2020. But almost half of that occurred in 2019 and 2020, and the region may be near a threshold beyond which extreme fires become more common.
Arctique & Antarct. rétroactions Russie incendiesCarbon bombs and Gulf Stream collapse: the most urgent climate stories of our time
This year will be remembered as a watershed year for the escalating climate crisis. Dozens of countries have been hit by extreme weather so far in 2022. Millions have been driven from their homes by flood, fire or drought, while food and energy shortages are becoming acute in many regions.
apocalypse rétroactions courent marinWestern Forests, Snowpack and Wildfires Appear Trapped in a Vicious Climate Cycle
When Stephanie Kampf visited one of her wildfire test plots near Colorado’s Joe Wright Reservoir in June of 2021, the charred remains of what had been a cool, shady spruce and fir forest before the Cameron Peak Fire incinerated it nearly took her breath away.
rétroactions incendiesSix tipping points ‘likely’ to be crossed
Current rates of warming will put the Earth at risk of crossing six "dangerous" climate tipping points, according to a new analysis. Crossing these thresholds would disrupt the Earth's systems triggering the collapse of ice sheets and the loss of coral reefs.
apocalypse rétroactionsHat die Erde den „sicheren“ Klimazustand schon verlassen?
Fünf Klima-Kipppunkte könnten bereits einen kritischen Wert überschritten haben. Das Pariser 1,5-Grad-Ziel reicht womöglich nicht aus, um den Kollaps zu verhindern, warnen Forscher in einer Neubewertung. Sie fordern ein Frühwarnsystem.
apocalypse rétroactionsLarge parts of Amazon may never recover, major study says
Environmental destruction in parts of the Amazon is so complete that swathes of the rainforest have reached tipping point and might never be able to recover, a major study carried out by scientists and Indigenous organisations has found.
Ameriques déforestation rétroactionsEn Chine, après les pénuries d'électricité dues au climat, le retour du charbon?
Cela fait plusieurs mois déjà que les problèmes d’alimentation en électricité perturbent l’économie chinoise: en juin et septembre de l’année dernière, les coupures avaient particulièrement affecté le Guangdong, la province la plus riche de Chine, notamment en raison, déjà, de la c
Chine charbon sécheresse rétroactions énergie fossileIt’s Happened Before: Paleoclimate Study Shows Warming Oceans Could Lead to a Spike in Seabed Methane Emissions
The slowdown of a key ocean current could release methane that is frozen in layers of organic seabed sediments along some of the world’s coastlines, a new study shows.
rétroactions méthane océansEn France, les émissions de CO2 des feux de forêt battent les records
Tout l’été, la France a lutté contre des feux de forêt d’une ampleur inédite, qui ont tout particulièrement marqué la Gironde, mais aussi la Bretagne et même le Jura français. En cause, les conditions anormales de sécheresse, conjuguées aux vagues de chaleur successives.
rétroactions incendiesAnother La Nina appears on track for 2022-23, which may continue drought on Central and South Coasts
It’s a sound we haven’t heard very often during the last few month. It's the sound of rain. One of the nation’s leading climatologists says those sounds could continue to be infrequent, with key indicators showing that we could be in for a third straight year of drought.
rétroactions courent marin** RECOMMENDED READING ** Scientists Say It’s ‘Fatally Foolish’ To Not Study Catastrophic Climate Outcomes
As global greenhouse gas emissions continue to rise, some climate scientists say it’s time to start paying more attention to the most extreme, worst-case outcomes, including the potential for widespread extinctions, mass climate migration and the disintegration of social and political systems.
apocalypse rétroactions* VAGUES DE CHALEUR * Le dérèglement du jet-stream contribuerait fortement aux chaleurs extrêmes actuelles
Les climatologues sont de plus en plus préoccupés par le fait que les vagues de chaleur extrêmes en Europe se produisent plus rapidement que ce que les modèles avaient suggéré, ce qui indique que la crise climatique sur le continent européen pourrait être encore pire que ce que l’on craign
rétroactions chaleur** EMPFOHLENE LEKTÜRE ** Mehr Methan Die Selbstreinigung der Atmosphäre macht schlapp
Das besonders klimaschädliche Gas Methan verbreitet sich rasant in der Erdatmosphäre – laut einer neuen Studie ohne menschliches Zutun. Kräfte, die für einen Abbau sorgen, sind schon zu sehr geschwächt. Methan gilt als besonders klimaschädliches Treibhausgas.
rétroactions émissions de GES méthaneAuftauender Permafrost in Sibirien – Im Boden lauert die Gefahr von über einer Billion Tonnen Klimakiller-Gase
Der sibirische Permafrost speichert doppelt so viel Kohlenstoff wie die Erdatmosphäre. Beginnt er einmal aufzutauen, ist der Prozess nicht mehr zu stoppen. Was sollen wir tun?
rétroactions pergélisol Russie‘Black carbon’ threat to Arctic as sea routes open up with global heating
In February last year, a Russian gas tanker, Christophe de Margerie, made history by navigating the icy waters of the northern sea route in mid-winter.
Arctique & Antarct. rétroactions géopolitique fonte des glaces logistique & navigationEuropas Permafrost taut unweigerlich auf
Ist der nächste Kipppunkt fürs Weltklima schon überschritten? Laut einer neuen Studie lässt sich das Tauen der methanhaltigen Permafrostböden in Nordeuropa selbst im besten Fall nicht mehr verhindern. Das Wort vermittelt Beständigkeit.
Europe rétroactions pergélisolFast-melting alpine permafrost may contribute to rising global temperatures
Newswise — From the ancient sludge of lakebeds in Asia's Tibetan Plateau, scientists can decipher a vision of Earth's future. That future, it turns out, will look very similar to the mid-Pliocene warm period – an epoch 3.
rétroactions montagne pergélisol‘Imminent’ tipping point threatening Europe’s permafrost peatlands
Large swathes of northern Europe and western Siberia may become “climatically unsuitable” for carbon-rich permafrost peatlands within a few decades, even under moderate warming scenarios, a new study warns. These carbon-rich landscapes span more than 1.
Europe rétroactions pergélisolDid We Miss Biden’s Most Important Remark About Russia?
Pretty much every crucial line in President Biden’s recent marathon news conference has been dissected by now — except one, the one that may turn out to be the most prescient. You had to be listening closely because it went by fast.
rétroactions chaleur pergélisol Russie incendies