Arctic Summer Could Be Practically Sea-Ice-Free by the 2030s
The first summer on record that melts practically all of the Arctic’s floating sea ice could occur as early as the 2030s, according to a new scientific study — about a decade sooner than researchers previously predicted.
Arctique & Antarct. fonte des glacesKlimawandel: Antarktische Umwälzpumpe schwächelt bereits bedenklich
Jede Sekunde stürzen gigantische Mengen Wasser in die Tiefe des Antarktischen Ozeans: Die Antarktische Umwälzzirkulation, bei der kaltes, sauerstoffreiches Wasser vom Schelf des Kontinents in die Tiefsee schießt, gilt als einer der großen Motoren der globalen Meeresströmungen.
Arctique & Antarct. courent marinCan Iceberg Surges in the Arctic Trigger Rapid Warming at the Other End of The World?
With the planet warming by a fraction of a degree every few years, glaciers melting away in a trickle and sea level rising two inches per decade, global warming sometimes seems to be happening at a slow and steady pace.
Arctique & Antarct. fonte des glaces courent marin océansKampf gegen Klimawandel - Grönland steht beim Klimaschutz nicht mehr abseits
Auch Grönland tritt jetzt dem Pariser Abkommen bei. Die grösste Insel der Welt hofft auf internationale Klimaschutz-Gelder. Neue Ölfelder werden keine mehr erschlossen. Darum geht es: Grönland hat das Pariser Abkommen zum Klimaschutz von 2015 bislang nicht unterschrieben.
Arctique & Antarct. ONUGlobal Warming Could Drive Pulses of Ice Sheet Retreat Reaching 2,000 Feet Per Day
The international research team documented that rate of retreat by mapping and measuring what they called “corrugation ridges” spread across about 11,000 square miles of the seabed. The ridges are generally less than 8 feet high and are spaced between about 80 and 1,000 feet apart.
Arctique & Antarct. fonte des glaces** RECOMMENDED READING ** Torrents of Antarctic meltwater are slowing the currents that drive our vital ocean ‘overturning’ – and threaten its collapse
Off the coast of Antarctica, trillions of tonnes of cold salty water sink to great depths. As the water sinks, it drives the deepest flows of the “overturning” circulation – a network of strong currents spanning the world’s oceans.
Arctique & Antarct. apocalypse fonte des glacesArctic ice is getting thinner by the day—and sea life is suffering
In April 1895, when famed Norwegian explorer Fridjtof Nansen attempted to mush across the frozen Arctic Ocean to reach the North Pole, he was stopped by endless rows of sea ice ridges.
Arctique & Antarct. biodiv. fonte des glaces océansArctic sea-ice shrinks to near record low extent
This summer's Arctic sea-ice shrank to its second lowest ever extent in the era of satellite observation. The floes withdrew to just under 3.74 million sq km (1.44 million sq miles) last week, preliminary data indicates.
Arctique & Antarct. fonte des glacesScientists Get a Close-Up Look Beneath a Troubling Ice Shelf in Antarctica
Deploying an underwater robot beneath a rapidly melting ice shelf in Antarctica, scientists have uncovered new clues about how it is melting. The findings will help assess the threat it and other ice shelves pose for long-term sea-level rise.
Arctique & Antarct. fonte des glacesDas Ende des antarktischen Meereises beginnt
Viel hat das Forschungsschiff "Polarstern" auf seinen 130 Expeditionen in die Arktis und Antarktis durchgestanden. 40 Jahre hat der Eisbrecher auf dem Buckel. Aktuell befindet sich das Schiff mit einem Expeditionsteam vom Alfred-Wegener-Institut (AWI) und der Universität Bremen in der Antarktis.
Arctique & Antarct. fonte des glacesAntarktis: Neue Messungen zum Abschmelzen des Thwaites-Gletschers
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Arctique & Antarct. fonte des glaces niveaux des mers‘Extreme situation’: Antarctic sea ice hits record low
The area of sea ice around Antarctica has hit a record low, with scientists reporting “never having seen such an extreme situation before”. The ice extent is expected to shrink even further before this year’s summer melting season ends.
Arctique & Antarct. fonte des glacesAntarctic Researchers Report an Extraordinary Marine Heatwave That Could Threaten Antarctica’s Ice Shelves
Skip to content Science Antarctic Researchers Report an Extraordinary Marine Heatwave That Could Threaten Antarctica’s Ice Shelves The inexorable rise of ocean heat is now evident off the coast of West Antarctica, potentially disrupting critical parts of the global climate system and accelerating
Arctique & Antarct. fonte des glaces niveaux des mersAntarktische Gletscherschmelze - Forscher bohren Loch durch antarktischen Riesengletscher
Wenn der Thwaites-Gletscher verschwindet, steigt der Meeresspiegel stark an. Die ganze Westantarktis könnte in den Abschmelzungsstrudel geraten. Der riesige Thwaites-Gletscher ragt von der Antarktis als sogenanntes Schelfeis weit ins Meer hinaus.
Arctique & Antarct. fonte des glacesHow Tensions With Russia Are Jeopardizing Key Arctic Research
With the Ukraine war, international collaborations with Russia on Arctic research and oversight have been strained or broken off. This loss of critical cooperation is compromising efforts to confront mounting environmental risks in the Arctic, from shrinking sea ice to pollution.
Arctique & Antarct. conflits Russie guerre en Ukraine‘Extreme’ Changes Underway in Some of Antarctica’s Biggest Glaciers
Antarctica's glaciers carry ice from the interior of the continent to the ocean. This NASA illustration shows where the ice is moving fastest; areas in red have the fastest flow, followed by those in pink and purple. Credit: NASA Goddard Space Flight Center
Arctique & Antarct. fonte des glacesEisschild in der Antarktis: Lässt sich der Kollaps des Thwaites-Gletschers doch noch verhindern?
Lässt sich der Kollaps des Thwaites-Gletschers doch noch verhindern? Um dieses Video zu schauen, müssen Sie sich anmelden Es war im Jahr 2014, als der Glaziologe Ian Joughin von der Universität von Washington im Fachjournal «Science» eine erschreckende Erkenntnis darlegte: Er hatte auf Basis vo
Arctique & Antarct. apocalypse fonte des glaces courent marin niveaux des mersNew Study Reveals Arctic Ice, Tracked Both Above and Below, Is Freezing Later
Scientists have known for years that the Arctic is warming faster than the rest of the world—nearly four times faster, according to a recent study. Tracking that warming is critical to understanding climate change not just in the Arctic but around the world. New data and analysis are crucial.
Arctique & Antarct. fonte des glacesScientists Report a Dramatic Drop in the Extent of Antarctic Sea Ice
The new year started with the familiar refrain of climate extremes, as scientists with the National Snow and Ice Data Center reported Jan. 3 that the sea ice around Antarctica dropped to its lowest extent on record for early January.
Arctique & Antarct. fonte des glacesWorld faces ‘terminal’ loss of Arctic sea ice during summers, report warns
The climate crisis has pushed the planet’s stores of ice to a widespread collapse that was “unthinkable just a decade ago”, with Arctic sea ice certain to vanish in summers and ruinous sea level rise from melting glaciers now already in motion, a major new report has warned.
Arctique & Antarct. apocalypse fonte des glaces niveaux des mersA 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 incendies** EMPFOHLENE LEKTÜRE ** Notruf aus der Antarktis – Dieser Gletscher bestimmt die Zukunft der Menschheit
1968 schaute die ganze Welt nach oben. Es war das Jahr vor der Mondlandung: Man glaubte, die Zukunft läge im All. Ein Mann aber schaute nach unten. Und er sah, dass die Antarktis und nicht der Mond unser Schicksal bestimmen wird.
Arctique & Antarct. apocalypse fonte des glaces niveaux des mersGrösster Gletscher der Antarktis droht zu rutschen
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Arctique & Antarct. fonte des glaces niveaux des mersKlimawandel am Thwaites-Gletscher – Wem gehört die Antarktis – der letzte unbewohnte Ort der Erde?
Klimawandel am Thwaites-Gletscher Wem gehört die Antarktis – der letzte unbewohnte Ort der Erde? Wer sich mit den Folgen des Klimawandels auseinandersetzt, stösst früher oder später auf die Antarktis.
Arctique & Antarct. géopolitique fonte des glacesArctic Ocean acidifying up to four times as fast as other oceans, study finds
Acidification of the western Arctic Ocean is happening three to four times faster than in other ocean basins, a new study has found. The ocean, which absorbs a third of all of the carbon dioxide in the atmosphere, has grown more acidic because of fossil fuel use.
Arctique & Antarct. océansWhere Thick Ice Sheets in Antarctica Meet the Ground, Small Changes Could Have Big Consequences
Scientists studying the physics and thermodynamics of Antarctica’s ice sheets say they’ve discovered a potential new weak spot that could accelerate melting and sea level rise over the next several hundred years.
Arctique & Antarct. fonte des glaces** LECTURE RECOMMANDEE ** La fonte au Groenland rend inévitable une forte élévation de la mer
Les glaciologues auteurs de l'étude publiée dans la revue Nature Climate Change ont constaté que le réchauffement actuel, indépendamment de toute pollution supplémentaire causée par les énergies fossiles, allait entraîner au minimum une perte de 3,3 % du volume de la calotte au Groenland, s
Arctique & Antarct. fonte des glaces niveaux des mersMajor sea-level rise caused by melting of Greenland ice cap is ‘now inevitable’
Major sea-level rise from the melting of the Greenland ice cap is now inevitable, scientists have found, even if the fossil fuel burning that is driving the climate crisis were to end overnight. The research shows the global heating to date will cause an absolute minimum sea-level rise of 27cm (10.
Arctique & Antarct. fonte des glaces niveaux des mersStudie aus Finnland – Erderwärmung in Arktis fast viermal schneller als weltweit
Einer neuen Studie von Wissenschaftlern des Finnischen Meteorologischen Instituts in Helsinki zufolge hat sich die arktische Region in den vergangenen 43 Jahren fast viermal so schnell erwärmt wie der globale Durchschnitt.
Arctique & Antarct. chaleurSvalbard, vitrine du réchauffement climatique
Le Svalbard, cet archipel norvégien situé aux portes du pôle Nord, est aux premières loges du réchauffement climatique. En juillet 2020, le thermomètre a battu un record de température: 21,7 degrés, alors que la moyenne estivale ne dépasse généralement pas les 10 degrés.
Arctique & Antarct. pergélisolThe Arctic community that chose conservation over Big Oil
Angus Sanguez is 67-years-old and whippet-thin. His face has been weathered by years of living in the Dehcho region in Canada’s Northwest Territories, a sub-Arctic wilderness that is on the frontlines of climate change.
Arctique & Antarct. États-UnisMalgré les interdictions, la Russie explore l’Antarctique à la recherche d’énormes gisements de pétrole
Rosgeo, l’organisme russe chargé de l’exploitation des ressources minières affirme avoir découvert un gisement gigantesque de 500 milliards de barils de pétrole et de gaz sous les eaux menacées par le climat de l’océan Austral, dans un Antarctique en train de fondre et de se déliter cha
Arctique & Antarct. énergie fossile RussieA teensy, tiny glimmer of hope for polar bears
Global warming is still threatening polar bears, but new research complicates the story. You know the image well: A lone polar bear, stranded on a piece of floating sea ice. Sometimes the bear looks emaciated. It always seems to look sad.
Arctique & Antarct. biodiv.Battleground Antarctica
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Arctique & Antarct. énergie fossile Russie géopolitique conflitsLa forêt boréale opère une migration géante pour échapper au dérèglement climatique
Les forêts boréales – qui constituent le plus grand biome terrestre de la planète – représentent environ 23 % de la superficie forestière de notre planète et subissent généralement moins de pression de la part des activités humaines que les autres régions.
Arctique & Antarct. forêts‘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 & navigationAcross the Boreal Forest, Scientists Are Tracking Warming’s Toll
The Marcell Experimental Forest in northern Minnesota. Scientists are simulating different climates in these glass chambers to better understand how boreal forests will respond to rising temperatures. Credit: Oak Ridge National Laboratory/U.S. Department of Energy
Arctique & Antarct. forêts pergélisol40 Grad zu warm für Jahreszeit - «Hitzewelle am Südpol hat jeden bestehenden Rekord pulverisiert»
In den letzten Tagen wurden am Südpol Temperaturen gemessen, die 40 Grad höher sind als normal. Italienische Forschende haben auf Twitter ein Foto geteilt, auf dem sie in Boxershorts posieren, bei für die Antarktis ungewöhnlichen minus 12 Grad Celsius.
Arctique & Antarct. chaleurHeatwaves at both of Earth’s poles alarm climate scientists
Startling heatwaves at both of Earth’s poles are causing alarm among climate scientists, who have warned the “unprecedented” events could signal faster and abrupt climate breakdown. Temperatures in Antarctica reached record levels at the weekend, an astonishing 40C above normal in places.
Arctique & Antarct. chaleurKlimawandel - Antarktisches Meereis erreichte Rekordtief
Im Februar erreichte die Ausdehnung des Meereises um die Antarktis den niedrigsten Wert seit Beginn der Aufzeichnungen. In diesem Jahr erreichte das Meereis um die Antarktis ein neues Minimum. So wenig Meereis wurde in den 44 Jahren seit Beginn der Aufzeichnungen noch nie beobachtet.
Arctique & Antarct. fonte des glacesSea Ice Around Antarctica Reaches a Record Low
The drop surprised scientists, and may help them understand more about climate change affecting Antarctica and its waters. Sea ice around Antarctica has reached a record low in four decades of observations, a new analysis of satellite images shows.
Arctique & Antarct. fonte des glacesGletscherschmelze: Wenn der Kipppunkt längst erreicht ist
Der Pine-Island-Gletscher in der Antarktis verliert Eis. Seine Geschichte zeigt, wie schrumpfende Gletscher den ganzen Planeten verändern werden. Wahrscheinlich gibt es nur wenige Orte auf dem Planeten, die einen so großen Einfluss auf den Rest der Welt haben, wie eine Bucht in der Westantarktis.
Arctique & Antarct. fonte des glacesThe hidden melting of the most important ice on Earth, explained
The future of sea level rise is being written underneath Antarctica and Greenland. The largest ice masses on the planet contain so much water that they’re increasing sea levels around the globe as temperatures rise. Satellites can see these drastic changes from space.
Arctique & Antarct. fonte des glacesPolar bears move into abandoned Arctic weather station – photo essay
Ihad dreamed about photographing polar bears for a long time. Some time ago my hobby, wildlife photography, ceased to be just a hobby and turned into a large part of my life. And if you devote so much time to an activity then your goals should be ambitious.
Arctique & Antarct. photographieLife in one of Canada’s northernmost villages, where the land is sinking into the sea
On the shores of the Arctic Ocean lies the hamlet of Tuktoyaktuk. As ice-free summers have stretched out for longer periods, Tuktoyaktuk’s coastline has become increasingly vulnerable to the open sea, and erosion threatens to render the land uninhabitable. 25 minutes video.
Arctique & Antarct. pergélisol fonte des glacesAn Extraordinary Iceberg Is Gone, but Not Forgotten
A chunk of Antarctic ice that was one of the biggest icebergs ever seen has met its end near the island of South Georgia. Scientists will be studying its effects on the ecosystem around the island for some time.
Arctique & Antarct. fonte des glacesLa calotte glaciaire du Groenland a perdu 4700 milliards de tonnes en 20 ans
Ce volume de glace fondue, qui à l'échelle de la superficie des Etats-Unis représente un demi-mètre d'eau, est particulièrement important sur les côtes du territoire autonome danois, selon cette étude basée sur des observations satellitaires du programme "Grace".
Arctique & Antarct. fonte des glacesConocoPhillips’ Plan for Extracting Half-a-Billion Barrels of Crude in Alaska’s Fragile Arctic Presents a Defining Moment for Joe Biden
The shadow of a bush plane falls on the landscape of the National Petroleum Reserve in Alaska. The reserve includes the proposed Willow project. Credit: Andrew Lichtenstein/Corbis via Getty Images
Arctique & Antarct. énergie fossile États-UnisA Trove of Old Photos Could Reveal the Future of These Arctic Glaciers
The Svalbard Islands, part of Norway, are warming seven times faster than the global average. Aerial pictures from the 1930s are helping researchers understand what that means for the region’s ice.
Arctique & Antarct. fonte des glaces photographieScientists watch giant ‘doomsday’ glacier in Antarctica with concern
Twenty years ago, an area of ice thought to weigh almost 500bn tonnes dramatically broke off the Antarctic continent and shattered into thousands of icebergs into the Weddell Sea.
Arctique & Antarct. fonte des glaces niveaux des mers'The Fuse Has Been Blown,' and the Doomsday Glacier Is Coming for Us All
One thing that’s hard to grasp about the climate crisis is that big changes can happen fast. In 2019, I was aboard the Nathaniel B. Palmer, a 308-foot-long scientific research vessel, cruising in front of the Thwaites Glacier in Antarctica.
Arctique & Antarct. fonte des glaces niveaux des mersRisse im Eis: Klimawandel bedroht Thwaites-Gletscher in der Antarktis
Glaziologen haben Risse in der Eisplatte beobachtet, die wie ein Korken vor der Mündung des riesigen Antarktis-Gletschers sitzt. Binnen fünf Jahren könnte sie kollabieren. Einer der größten Gletscher der Antarktis, der Thwaites-Gletscher, verliert offenbar zunehmend seinen Halt.
Arctique & Antarct. fonte des glaces niveaux des mersAntarktis Wichtiger Eis-Schild könnte innerhalb der nächsten Jahre zerbrechen
Im Westen der Antarktis sorgt der Thwaites-Gletscher dafür, dass das Eis vom Kontinent nicht ins Meer rutscht. Doch nun haben Wissenschaftler entdeckt: Ein Teil des Schelfeises verliert an Halt und könnte auseinanderbrechen.
Arctique & Antarct. fonte des glaces niveaux des mersUN shipping body agrees voluntary measures to cut black carbon in the Arctic
At the International Maritime Organization (IMO) meeting, countries urged ship operators to switch to cleaner fuels in Arctic waters Ship operators have been urged to switch to cleaner fuels in the Arctic, under a resolution to cut black carbon emissions at the International Maritime Organization (I
Arctique & Antarct. logistique & navigationAntarctica was once a rainforest. Could it be again?
The coldest continent on Earth used to be as warm as Italy. Here’s how we know. Not far from the South Pole, more than half a mile below the ocean in a region that was once covered by ice, a layer of ancient fossils tells a surprising story about the coldest continent on Earth.
Arctique & Antarct. histoire clim.‘The ice sheet is in for a wild ride’: Greenland is seeing record ice loss
Greenland had a quite a year. For the first time in its history, rain fell at its summit. In August, it experienced one of the latest-occurring melt events in recent memory. This also became the third year with major melting events in the past decade.
Arctique & Antarct. fonte des glaces
