The average surface temperature is currently about 1.2°C above the 1850-1900 average. Every fraction of a degree of warming matters. Here is why it is so important not to exceed 1.5°C. United Nations explains: https://www.un.org/en/climatechange/science/climate-issues/degrees-matter

I think we, climate physicists, have overlooked something with respect to climatic instabilities... their effect on weather variability... I believe this will be the main problem for our society and economy for the next three generations to come... at least... www.nature.com/articles/d41...

‘Climate free fall’: why the biggest risk to our economies is yet to be recognized

Increasing instability of the ocean, ice and atmosphere threatens farming, finance and society. We all need to wake up to that fact.

nature.com

The formation of Antarctica's vast East Antarctic Ice Sheet may have been driven not only by falling atmospheric carbon dioxide but also by the slow uplift of the continent itself, according to a new study in Science. Learn more: https://scim.ag/4wu7ga4

40.4C: on June 27, 2026, the highest temperature since measurements began in 1893 was recorded at the Potsdam Telegrafenberg where PIK is based. The measurement series serves as an important reference point for assessing climate development in the region. Annual max temperature (2026 as of 9 July).

What'd happen if we managed to limit global warming to around 2°C—but the AMOC still underwent a major weakening? Join us today bit.ly/climtip-webi... with @froeltho.bsky.social on impacts of #AMOC collapse under 2°C scenario! 📅 7 July, 2–3pm CEST #ClimateScience #ClimTip @unibe.ch #TippingPoints

Tipping points in the Earth system are becoming a global challenge: a UN brief, based on PIK research, highlights growing risks to ice sheets, coral reefs and the Amazon. www.pik-potsdam.de/en/news/late...

New UN brief highlights governance challenge of Earth system tipping points

24.06.2026 - A new science brief by the UN Secretary-General’s Scientific Advisory Board highlights Earth system tipping points as a unique global governance challenge. The brief, produced in partners...

pik-potsdam.de

Absolutely thrilled that the Overshoot Conference is going into its second round. This year at @tsinghuauniversity.bsky.social. Call for abstract out now - hope to welcome many familiar and new faces.

IIASA@iiasa.ac.at · last mo.

🌍 Overshoot Conference 2026: Call for abstracts now open! Join researchers, policymakers, innovators & communicators in Beijing, hosted by IIASA and #TsinghuaUniversity. 📣 Submit work on mitigation, CDR, climate impacts, adaptation, governance, equity & more. iiasa.ac.at/events/nov-2...

Scientists say the West Antarctic Ice Sheet could collapse with very little additional warming and the four metres of sea level rise that would follow cannot be stopped once it begins share.google/MXR49QHhfmOi...

Scientists say the West Antarctic Ice Sheet could collapse with very little additional warming and the four metres of sea level rise that would follow cannot be stopped once it begins

A modelling study published in Communications Earth & Environment in June 2025 found that the West Antarctic Ice Sheet could begin an irreversible collapse at ocean temperatures between zero and 0.25°...

share.google

Antarctica’s west coast missing an area of sea ice the size of France as temperatures peak 20C above average

Antarctica’s west coast missing an area of sea ice the size of France as temperatures peak 20C above average

Exclusive A vast area of the Bellingshausen Sea should be covered by sea ice by now, with one expert calling the loss of ice ‘depressing’ * Get our breaking news email, free app or daily news podcast Antarctica’s west coast is missing an area of winter sea ice the size of France, sparking concerns for threatened penguins other marine life and global sea levels. One expert said the loss of ice in the Bellingshausen Sea was “depressing” and the failure of ice to form could have intensified a heatwave over the continent’s peninsular last week that saw daytime temperatures peak at 15.4C which is more than 20C above average. Continue reading...

theguardian.com

Many climate models omit the permafrost carbon–climate feedback. In this new paper we show that inlcuding it can increase Earth system tipping risks, especially in overshoot scenarios with peak temperatures below 3°C or peak cumulative emissions of below 2000 PgC. iopscience.iop.org/article/10.1...

Permafrost carbon–climate feedback amplifies Earth system tipping risks

Permafrost carbon–climate feedback amplifies Earth system tipping risks, Steinert, Norman J, Munday, Gregory, Sandstad, Marit, Sanderson, Benjamin M, Wunderling, Nico

iopscience.iop.org

The latest update of the Indicators of Global Climate Change (IGCC) report shows 2025 among warmest years on record with 1.39°C above preindustrial. Human-caused global warming is now expected to exceed 1.5°C threshold by around 2030 🌍🌡️ More details here: climatechangetracker.org/climate-chan...

The latest update of the Indicators of Global Climate Change (IGCC) report shows 2025 among warmest years on record with 1.39°C above preindustrial. Human-caused global warming is now expected to exceed 1.5°C threshold by around 2030 🌍🌡️ More details here: climatechangetracker.org/climate-chan...

🆕 The Earth is accumulating heat at an accelerating rate. Human-caused warming reached 1.37°C above pre-industrial levels in 2025 & is expected to exceed 1.5°C within ~4 years. PIKs @wflamb.bsky.social led the report’s assessment of global greenhouse gas emissions. www.pik-potsdam.de/en/news/late...

📣 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.

Why delaying climate action now means higher seas by 2100 – new research

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.

theconversation.com

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

AMOC: Is global warming tipping key Atlantic ocean currents towards ‘collapse’?

The AMOC is under threat from human-caused climate change, as warming seas, melting ice and increased rainfall upset the temperature and salt balance of the North Atlantic.

tinyurl.com

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

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

Southern Florida could be underwater within centuries. A rare geological record from beneath the Ross Ice Shelf confirms the grim forecast.

motherjones.com

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

Warmer ocean is driving the Antarctic sea ice 'regime shift'

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

newscientist.com

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 🏔️🧊❄️

Dr Ella Gilbert@drgilbz.bsky.social · 5mo ago

New roundup vid, ft.: quicker-than-expected climate heating, higher-than-estimated sea levels and sooner-than-expected tipping thresholds for Antarctic ice. Oh, and the Greens won Gorton and Denton. FINALLY, SOME GOOD NEWS. youtu.be/DzXyi6purZY

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.

Adaptation planning must include 1.5°C overshoot scenarios

Adaptation planning should include the impacts that can be avoided by high mitigation ambition – including which impacts are reversible from overshooting the 1.5°C limit and which are irreversible. Th...

climateanalytics.org

🆕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"