AlaskaWx, to worldwithoutus avatar

Percent area of the Arctic (land and sea north of 60ºN) with the annual average temperature higher than the 1951-80 baseline normal. Since 2015 effectively all of the Arctic warmer than the baseline. In a stable climate this would bounce around 50 percent with some multi-year consistency with more or less area being above/below normal. H/T @Climatologist49

NunavutBirder, to worldwithoutus avatar

Given we were talking about cracks in the landfast ice, here’s a small one we were figuring where to cross. Two Polar Bears had strolled along it earlier looking for seal.

scienceupdates, to Alaska avatar

What's up with rivers in Alaska's Brooks Range? They are turning orange, likely because nearby permafrost is thawing and causing all sorts of downstream effects...

CelloMomOnCars, to worldwithoutus avatar

At the poles, more heat radiates out into space than is absorbed from the sun.

Rocket Lab launches NASA cubesat to study heat lost from Earth's poles

"The PREFIRE duo "will criss-cross over the and measuring thermal infrared radiation — the same type of energy emitted from a heat lamp — that will make models more accurate and help predict changes caused by ," Rocket Lab wrote in a mission description."

NunavutBirder, to worldwithoutus avatar

Crossing a bridge at a crack in the sea ice.

One of my favourite photos.

AlaskaWx, to worldwithoutus avatar

The warmest 12-months in millennia for the Earth as a whole is right now. For the Arctic though, the warmest 12-months was in 2016, with the post-2019 years notably less hot.

I explore the "where" and "why" in the latest Alaska and Arctic Climate newsletter.


br00t4c, to worldwithoutus avatar
ulaulaman, to worldwithoutus avatar

Someone write a prompt to create an image. And I started from a prompt to draw an image!

A in the

ScienceDesk, to animals avatar

Huge jellyfish invasion could disrupt Arctic ecosystems as waters warm.

New Scientist reports: "The Arctic could see a surge of jellyfish as climate change leads to warmer waters and less ice – a process known as 'jellification.'"

mongabay, to news avatar

Given that the serious impacts of climate change are rapidly escalating, some scientists, backed up increasingly by governments, are looking into extreme measures such as geoengineering to slow the rate of change.

A new report examines 61 climate mitigation ideas for the Arctic, including geoengineering.

By @Jeremy_Hance

NunavutBirder, to worldwithoutus avatar

T-shirt weather out there this evening.

NunavutBirder, to worldwithoutus avatar
yeri, to climate avatar
doomscroller, to worldwithoutus avatar

What's Normal in a Changing Arctic Climate?
Depends on your interest

"Is Updating Once a Decade Enough?
Part of the impetus for updated baseline every ten years is to keep up with the changing climate. The Arctic though is warming so fast that this once-a-decade update is not sufficient to keep up the pace of change." From Rick Thoman @AlaskaWx

#Arctic #Cryosphere

AlaskaWx, to worldwithoutus avatar

Climate normals and the Arctic is this week's topic for the Alaska and Arctic Climate Newsletter. What does "normal" even mean in a rapidly warming environment? Well, that probably depends on your perspective.

AlaskaWx, to worldwithoutus avatar

Arctic 12-month running temperatures as the difference from the 1951-80 average, updated through April 2024. The 10-year smoothed average shows the long term trend, the 2-year average captures some of the short term variability. OISSTv2.1 courtesy of NOAA/PSL/ESRL
ERA5 courtesy of ECMWF/Copernicus.

CopernicusEU, to worldwithoutus avatar

RT by @CopernicusEU: Our provides centralised access to a repository of Copernicus related to the 🐻‍❄️

Its viewer allows users to carefully select their target variables & products before downloading 🔎

Explore the datasets here👇

[2024-05-17 08:15 UTC]

AlaskaWx, to worldwithoutus avatar

A sure sign that contemporary 30-year climate normals are not keeping up with the rate of Arctic change: only one year (2021) since the early 1990s has less than half of land area in the Arctic (north of 60ºN) had annual average temperature above “normal", and eight years more than 90 percent of Arctic Lands were warmer than “normal". In an unchanging climate, this would bounce around 50% each year.
H/T @Climatologist49

br00t4c, to worldwithoutus avatar
AnnaAnthro, to worldwithoutus avatar

For sale: a unique piece of private land the size of Manhattan in strategic #Arctic archipelago. Will #China buy it? #svalbard #norway

kravietz, to Russia avatar

Today #Russia and #China play best friends forever and #USSR had been traditionally placed in the same “communist” basked as China. Some fun facts that especially tankies are getting completely wrong today.^1

Since 1950’s China and USSR were actually conflicted over each other’s interpretations of #Marxism and in 1960’s the conflict nearly escalated into a full-scale nuclear war between the two countries.

China criticised CPSU (Communist Party of Soviet Union) over Soviet invasion of #Czechoslovakia (1968)^2 and “Brezhnev Doctrine” which denounced any Marxism version outside of the Soviet one as “reactionary” (Marxist newspeak for “heresy”). This included both Czechoslovak reforms and Mao’s Cultural Revolution in equal manner. At that time China actually developed complex relations with Eastern Bloc countries such as Romania and Czechoslovakia behind Kremlin’s back.

Essentially, everyone called each other “reactionary” and claimed their Marxism is the correct one. Any resemblance to past religious wars is entirely incidental. 😉 In 1968 Chinese diplomat Zhou Enlai speaking in Romanian embassy in Beijing called Soviets for “fascist politics, great power chauvinism, national egoism and social imperialism”.^3

Does that ring any bells? 😉

Soviets and China had a number of unresolved border issues in Manchuria. In 1968 China started escalating these, actually killing Soviet border guards. Moscow, knowing of China’s nuclear weapons and Mao’s confrontative attitude preferred to deescalate… which only encouraged Chinese.

Does that remind anything from contemporary history? 😉

At the peak of the conflict in 1969 USSR found itself in the position of a country with high-tech army challenged by a low-tech army which relied on millions of conscripts and human wave tactics.

Does this ring any bells? 😉

In 1969 Soviet army managed to push back overwhelming several Chinese offensives near the island of Zhenbao in spite of their overwhelming numbers with ratios up to 1:10 Soviet to Chinese. That was possible primarily due to the technical advantage, such as then-advanced T-62 tanks.

A ceasefire was signed in 1969 - on Chinese side by the very same Zhou Enlai who called Soviets “fascists” only a year before, but the actual peace agreement was only signed in 1991. The conflict was only completely resolved in 2008 (!) when Russia ceded 340 km² of the disputed lands to China.

As you can see, contrary to the mythology carefully constructed by modern “geopolitical realists”, there’s nothing constant in Russian or Soviet policies. Russia can not always win armed conflicts, it can cede territories and in general conflicts can be won in spite of imbalance of power. Oh, and calling others “fascists” was used by everyone and Russia was both an user and a recipient of this nomination.

rameshgupta, avatar

⬆️ @tsturm @kravietz

>> what #China is doing with #Russia right now, my guess is that China wants a chunk of Siberia. #GlobalWarming will force China to go north

China is not an #Arctic country: its coasts do not border with #ArcticSea nor does it claim to have sovereignty on under-continental shelves or water in the Arctic. Yet, it defines itself as a #NearArcticState ➡️

China’s #BeltAndRoadInitiative is aligned with #Putin’s #RevanchistDreams ➡️

nbrandsberg, to HikingPics avatar
EdwardPhilips, to Birds avatar

Morning all. It’s Wednesday. Never mind, have an Arctic Tern. xx

PolarBremen, to random avatar

@awi 's EM-Bird can measure sea ice thickness from a helicopter: today Janna from our group learned to operate the instrument over the Jade Bight (North Sea). Great weather, but sadly, 0 cm sea ice! 😉

seaice, avatar

@PolarBremen @awi

Pretty! This is what it would look like over sea ice.

Snoro, to worldwithoutus avatar

Rain Comes to the Arctic, With a Cascade of Troubling Changes

Rain used to be rare in the Arctic, but as the region warms, so-called rain-on-snow events are becoming more common. The rains accelerate ice loss, trigger flooding, landslides, and avalanches, and create problems for wildlife and the Indigenous people who depend on them

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