Malgré 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. én. fossile Russie

New data reveals extraordinary global heating in the Arctic

New data has revealed extraordinary rates of global heating in the Arctic, up to seven times faster than the global average.

Arctique & Antarct. chaleur fonte des glaces niveaux des mers

A 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. én. fossile Russie géopolitique conflits

Emperor penguins on course for extinction ‘by end of century’ due to climate crisis

One of the world’s most recognisable species – the emperor penguin – could all but extinct by the end of this century due to the climate crisis, scientists have warned.

Arctique & Antarct. biodiv.

La 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

Why Did Two Antarctic Ice Shelves Fail? Scientists Say They Now Know.

The collapse of the two ice shelves was most likely triggered by vast plumes of warm air from the Pacific, researchers have found.

Arctique & Antarct. fonte des glaces

‘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

Across 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 pergélisol

In a First, an Ice Shelf Collapses in East Antarctica

Scientists say a period of unusual weather, combined with record-low sea ice, led to the disintegration of the Conger ice shelf.

Arctique & Antarct. fonte des glaces

40 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. chaleur

It’s 70 degrees warmer than normal in eastern Antarctica. Scientists are flabbergasted.

"This event is completely unprecedented and upended our expectations about the Antarctic climate system," one expert said.

Arctique & Antarct. chaleur

Heatwaves 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. chaleur

Record ‘bomb cyclone’ bringing exceptional warmth to North Pole

Temperatures at the North Pole could approach the melting point as they surge nearly 50 degrees above normal.

Arctique & Antarct. chaleur fonte des glaces

Arctic sea ice could hit maximum extent ‘much earlier’ than usual

An extreme heat event in the Arctic could cause it to reach the maximum of the extent of its ice for this year “considerably earlier” than usual, a scientist has warned.

Arctique & Antarct.

Klimawandel - 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 glaces

Sea 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 glaces

Gletscherschmelze: 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 glaces

The 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 glaces

Flourishing plants show warming Antarctica undergoing ‘major change’

Antarctica’s two native flowering plants are spreading rapidly as temperatures warm, according to the first study to show changes in fragile polar ecosystems have accelerated in the past decade.

Arctique & Antarct. biodiv.

Polar 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. photographie

Life 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 glaces

An 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 glaces

La 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 glaces

ConocoPhillips’ 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. én. fossile États-Unis

A 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 photographie

Scientists 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 mers

Risse 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 mers

Rising From the Antarctic, a Climate Alarm

Around the frozen continent, a vast current circles the world. New science is revealing the power it holds over the future.

Arctique & Antarct. fonte des glaces niveaux des mers

Antarktis 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 mers

UN 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.

Antarctica 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.

Rain to replace snow in the Arctic as climate heats, study finds

Rain will replace snow as the Arctic’s most common precipitation as the climate crisis heats up the planet’s northern ice cap, according to research. Today, more snow falls in the Arctic than rain.

Arctique & Antarct.

Melting Arctic sea ice linked to ‘worsening fire hazards’ in western US

Arctic sea ice melt has driven an increase in “fire-favourable weather” across the western US over the past four decades, according to new research.

Ameriques Arctique & Antarct. fonte des glaces incendies

‘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