📣 Just out: our new study on the 'cold blob' in the Northern Atlantic. Is that due to ocean currents bringing less heat there, or due to more heat being lost through the sea surface? Our data analysis strongly suggests it's due to #AMOC slowing. 🌊 agupubs.onlinelibrary.wiley.com/doi/abs/10.1...

Polar ice – 100Ks years of climate history. Changed in a few human lifetimes? As we heat the planet, ice sheets are pushed to melt irreversibly. But it gets trickier @ricarda-winkelmann.bsky.social talks 3 types of tipping in #Greenland & #Antarctica Join 5 May 2-3PM CEST ‼️ bit.ly/climtip-webi...

57 countries gathered in Santa Marta for the first-ever conference dedicated to transitioning away from fossil fuels, and here are three key takeaways from the closing plenary 🧵

If all glaciers melt, sea level will rise by about 24cm. If the polar ice sheets melt, sea level will rise by more than 65m; almost 300 times more.

NEW: How is climate change impacting the AMOC, the Atlantic currents that help keep Europe warm? @carbonbrief.org’s new in-depth explainer covers: 🌊 How the AMOC is impacted by warming 🌎 What research says about AMOC collapse 🗞️ How the media covers AMOC Read more here: tinyurl.com/5caxbw5a

Happy #EarthDay! 🌍 Today we are launching a white paper on Barriers to Glaciers-Related Financing. As temperatures continue to rise, finance will be needed to respond to the impact of glacier loss on mountain 🗻 and water 🧊 ecosystems. iccinet.org/glacier-fina...

Breaking: New study using observational constraints projects that the Atlantic Ocean circulation #AMOC will weaken ~50% by 2100, even for medium emissions and without Greenland melting. 🌊 More realistic models means stronger weakening - not entirely unexpected. www.science.org/doi/10.1126/...

🚨 It’s official: 2026 had the lowest annual maximum Arctic sea ice extent on record - essentially tied with last year’s record low. Climate change is reshaping the Arctic, and it's all throughout the year. For more information from @nsidc.bsky.social: nsidc.org/news-analyse...

Arctic sea ice has reached its maximum extent for the year, at 14.29 million square kilometers (5.52 million square miles) on March 15, edging just below last year’s record and statistically tying for the lowest maximum in the 48-year satellite record. @cires.colorado.edu https://bit.ly/4sBUe95

The point of no return: New evidence shows Antarctic melting is already locked in

Since 2016, Antarctic sea ice extent has been declining sharply – now scientists are piecing together how strong winds and warm deep water have played a part in this abrupt transition

The last 11 years have been the hottest years ever recorded. Earth’s energy imbalance has reached its highest than at any time in observed history, with heat reaching deeper into the ocean. This is the Global #StateOfClimate 2025. 📰 Press release: https://bit.ly/4ds4r2V #WorldMetDay

Great summary of our new study about the tipping points of the Antarctic Ice Sheet and related sea-level impacts in this new video by @drgilbz.bsky.social! Give it a watch! 📄 Link to the paper: www.nature.com/articles/s41... #WorldGlaciersDay 🏔️🧊❄️

Glaciers and ice sheets cover approximately 10% of Earth's land area, yet their influence stretches far beyond their frozen borders, shaping life across the entire planet. This #GlaciersDay, discover why glaciers matter for people and nature: https://ow.ly/qYuE50YwHhW

New EU Scientific Advisory Board report calls on EU to prepare for 2.8–3.3°C of warming by 2100. But this level of warming is not baked in. New blog outlines why we also need to plan for lower warming, including #overshoot of the 1.5°C limit, in #adaptation planning.

🆕OCEAN ICE Publication: Mapping tipping risks from Antarctic ice basins under global warming. Torsten Albrecht a WP6 Co-lead in OCEAN ICE, is Co-Author on this paper! Read an article summarising the paper here: ocean-ice.eu/ocean-i...

Mapping tipping risks from Antarctic ice basins under global warming Winkelmann+ doi.org/10.1038/s415... "A first threshold, potentially as low as 1–2 °C above pre-industrial levels, triggers the long-term collapse of ~40% of marine ice volume in West Antarctica"

The world is getting hotter faster — its pace nearly doubled in the past decade www.nature.com/articles/d41...

The world is getting hotter faster — its pace nearly doubled in the past decade www.nature.com/articles/d41...

Between 1992-2025, large areas of the grounding line of #Antarctic glaciers have retreated. The largest changes have occurred in W. Antarctica, where grounding lines have retreated 10-40+ km, driven by incursions of warm water masses along deep bathymetric troughs www.pnas.org/doi/full/10.... ❄️🧪🌊

The results of a study in Nature Climate Change imply that the Antarctic Ice Sheet does not act as one single tipping element, but rather as several tipping systems interacting across drainage basins. go.nature.com/4rFXQ9q 🧪

Job alert! @northumbriauni.bsky.social is hiring a researcher to investigate tipping points in Antarctica's ice sheets – funded by ESA's Climate Change Initiative 🧊🌍 📍 Newcastle, UK | 14-month position 📅 Apply by 13 March 2026 🔗 work4.northumbria.ac.uk#en/sites/CX_...

1️⃣ Over the last 30 years, #Antarctica has lost 12,820 square kilometres of grounded ice – larger than the area of Greater Sydney – a new study led by @ucirvine.bsky.social reports. [animation of satellite images from @esa.int shows the evolution of cracks in the Pine Island Glacier during 2019]

Einige #Gletscher in der #Antarktis könnten ihre #Kipppunkte schon bei einer Erwärmung von 1,3 Grad überschritten haben, zeigt eine neue Studie des @pik-potsdam.bsky.social Potsdam Institut für Klimafolgenforschung. 40% des westantarktischen Eises könnten schon zum Abschmelzen verurteilt sein.

The results of a study in Nature Climate Change imply that the Antarctic Ice Sheet does not act as one single tipping element, but rather as several tipping systems interacting across drainage basins. go.nature.com/4rFXQ9q 🧪

🌊 New paper in @natclimate.nature.com: 'Mapping tipping risks from Antarctic ice basins under global warming', by @pik-potsdam.bsky.social "Marine-based sectors in East Antarctica, representing ~5 m of potential sea-level rise, are at risk of losing stability at 2–5 °C." ▶️ rdcu.be/e5bQS

"...the higher the peak temperature, the more difficult it is to reverse temperature below critical levels and the longer it’s likely that we’ll remain in ‘overshoot’.” - @njsteinert.bsky.social, @cicero.oslo.no #ClimateEmergency

⚠️"A first threshold, potentially as low as 1–2 °C above pre-industrial levels, triggers the long-term collapse of ~40% of marine ice volume in West Antarctica" I.e. The Paris Agreement target locks in approximately 2.1 metres sea-level equivalent from WAIS alone. 🌊

Geopolitical posturing and resource-grabbing: Trump is distracting from the real Greenland problem, as climate warming melts the ice, raising sea levels and disrupting ocean currents and weather patterns across the globe.My new post: iceblog.org/2026/02/21/g...

Review of how “minimising the magnitude and duration” of overshooting 1.5C could decrease the risk of surpassing climate tipping points #climatecrisis HT @carbonbrief.org iopscience.iop.org/article/10.1...

Limiting warming to 2C or below is crucial to protect pristine Antarctic Peninsula! ❄️🧪🌊 Summary of the paper by @carbonbrief.org : www.carbonbrief.org/limiting-war... Full paper: www.frontiersin.org/journals/env...

New review paper on "The implications of overshooting 1.5 °C on Earth system tipping elements" Main points: Overshooting 1.5°C raises risks of irreversible Earth-system tipping, which depends on peak warming and more so on how long critical thresholds are exceeded. doi.org/10.1088/1748...

🆕 study: Global warming must stay below 2°C and return to 1.5°C as quickly as possible to reduce tipping point risks. In the long term, temperatures must cool to 1°C above pre-industrial levels, researchers from @exeter.ac.uk, @cicero.oslo.no and PIK find. www.pik-potsdam.de/en/news/late...

Antarctica isn’t one big tipping point. New research maps 18 separate ice basins, each with its own threshold. Some in West Antarctica may tip at just ~1–2C warming (i.e close to today’s levels). Cross the line, and you commit to m’s of sea-level rise over centuries www.nature.com/articles/s41...

New study analyses the tipping points of different #Antarctica drainage basins. A first threshold, 1–2 °C above preindustrial levels, triggers the long-term collapse of 40% of marine ice in West Antarctica! Marine-based sectors in East Antarctica are at risk of losing stability at 2–5 °C. ❄️🧪🌊

Tipping points of the #Antarctic ice sheet revealed! Temperatures of 1–2 °C above preindustrial levels triggers the long-term collapse of 40% of marine ice in West Antarctica once the ice sheet fully responds. Marine-based sectors in East Antarctica are at risk of losing stability at 2–5 °C.

If you are remotely interested in #Antarctica , #ClimateChange and #SeaLevelRise, check out the latest brilliant @oceaniceeu.bsky.social contribution from the Potsdam group on how the risk of crossing a tipping point varies per basin www.nature.com/articles/s41...

NEW: Antarctic ice sheet not one tipping element, but interacting basins with distinct thresholds. ~40% of West Antarctic ice may be committed to long-term loss; parts of East Antarctica face risks at 2–3°C. @ricarda-winkelmann.bsky.social @juliusgarbe.github.io www.pik-potsdam.de/en/news/late...

🔔🚨 New Publication Alert! Research has shown that the Antarctic Ice Sheet is a climate tipping element. We found: it’s not one — it’s many. 📄 Paper (open access): www.nature.com/articles/s41... 📢 Press release: www.pik-potsdam.de/en/news/late... Tread below 🧵👇

How should climate science and policy respond to a potential exceedance of 1.5°C? We provide our perspective on this in a new @Nature comment 🔗 nature.com/articles/d41586-026-00247-y led by Gaurav Ganti with Sabine Fuss, @joerirogelj.bsky.social, @setupelz.bsky.social & Keywan Riahi 1/

Earth is closer to critical tipping points than many realize. Join authors of the Global Tipping Points Report 2025 for a webinar TODAY on risks, governance challenges, and positive tipping points that still make a difference. 15–16:30 CET Register: futureearth.confetti.events/tipping-poin...

Glacier loss may peak at 2,000–4,000 disappearing each year by mid‑century, says a study in @natclimate.nature.com. Limiting warming to 1.5 °C could more than double the number of glaciers that remain by 2100: spklr.io/633208LZri #ClimateChangeScience #glaciology

INSTANT invites you to a webinar on climate science diplomacy with Dr. James Kirkham (International Cryosphere Climate Initiative). "Climate science diplomacy: What is it? How do YOU do it? And how can we make policymakers care about ice?” 📅 30 January, 12:00 CET scar.org/scar-news/pr...

As world leaders, businesses and civil society gather in #Davos for the #WEF, here is a timely reminder why Greenland is indispensable to global #climate science 🧪 via: Prof Martin Siegert in @theconversation.com theconversation.com/why-greenlan...

The fate of the planet’s coastlines depends on how fast Antarctica’s ice sheets melt. We don’t know what’s coming

🌡️ WMO confirms 2025 was one of warmest years on record. 2025 was one of the 3 warmest years on record, with the global average surface temperature at 1.44°C ± 0.13°C above the 1850-1900 average, according to WMO’s consolidated analysis of 8 datasets. 🔗 https://bit.ly/49xpkWP

The Earth is closer to critical tipping points than many realize. Join authors of the Global Tipping Points Report 2025 for a webinar on risks, governance challenges, and positive tipping points that still make a difference. 26 Jan 15–16:30 CET Register: futureearth.confetti.events/tipping-poin...

The Trump Administration's announced withdraw from the IPCC is disappointing, but not surprising. US scientists will continue to play key roles in the @ipcc.bsky.social. A statement from the US Academic Alliance for the IPCC:

West Antarctic Ice Sheet glaciers underwent at least five major inland retreats during the Pliocene—a period with temperatures similar to projected future warming—suggesting the possibility of meter-scale global sea-level rise in our future. In PNAS: https://ow.ly/I6NZ50XRaap

A quick look back at 2025 regarding the instability risk of the Atlantic Ocean circulation #AMOC.🌊 Some bad, some positive news. A meta-analysis of 768 simulations with 38 different climate models shows an #AMOC shutdown is not a low-probability event any more. 1/6 iopscience.iop.org/article/10.1...