A 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.
Artico & Antart. cicli di feedback Russia incendi forestaliCarbon 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.
apocalisse cicli di feedback corrente marinaWestern 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.
cicli di feedback incendi forestaliSix 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.
apocalisse cicli di feedbackHat 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.
apocalisse cicli di feedbackWhy Arctic fires are releasing more carbon than ever
Smoke from hundreds of wildfires darkened skies over the Alaskan Interior this summer, with the state experiencing its fastest start to the fire season on record amid hot and dry conditions.
Artico & Antart. cicli di feedback permafrost incendi forestaliLarge 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.
Americhe deforestazione cicli di feedbackEn 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
Cina carbone siccità cicli di feedback energia 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.
cicli di feedback metano ozeaniEn 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.
cicli di feedback incendi forestaliAnother 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.
cicli di feedback corrente marina** 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.
apocalisse cicli di feedback* 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
cicli di feedback calore** 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.
cicli di feedback emissioni di GES metanoAuftauender 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?
cicli di feedback permafrost RussiaEuropas 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.
Europa cicli di feedback permafrostFast-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.
cicli di feedback montagna permafrost‘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.
Europa cicli di feedback permafrostDid 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.
cicli di feedback calore permafrost Russia incendi forestali
