Johan Rockström

Director @PIK_climate. Also Professor @unipotsdam, @sthlmresilience. Internationally recognised Earth scientist on global sustainability, #PlanetaryBoundaries.

[Johan Rockström @jrockstrom]

World Cup will have hydration breaks each 15 min to reduce dangerous heat risk. Remember, this is not a FIFA rule softening the efforts of the players. It is because we are heating the planet to new unprecedented levels. We are breaking game.
https://t.co/53VhUVmoY0

[Carbon Brief @CarbonBrief]

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

✍️ Cecilia Keating
🎨 @tomoprater Kerry Cleaver

Read here: https://t.co/1OlmAXdHuC

[MetJam @MetJam_]

Oxford, the longest running continuous weather station in UK history, with temperature observations stretching back to 1815, has preliminarily broken its maximum temperature record for May yesterday by OVER 3ºC with a temperature of 33.7ºC. Unprecedented in its 211-year history.

[Prof. Stefan Rahmstorf 🌏 🦣 @rahmstorf]

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. Seriously bad news.
https://t.co/PZTZJlqsFN

[Prof. Stefan Rahmstorf 🌏 🦣 @rahmstorf]

Has the Atlantic overturning #AMOC shut down before?
It very likely has, e.g. during Heinrich Event 4 around 40.000 years ago, in response to ice sliding into the Atlantic the water.
Climate model simulations of this agree well with paleoclimate data.
https://t.co/oMbj34EvJj

[Prof. Stefan Rahmstorf 🌏 🦣 @rahmstorf]

📣 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.

https://t.co/Po7mmOSiGC

[Johan Rockström @jrockstrom]

China’s rise in AI, clean energy and advanced technologies is no sudden leap, but the result of decades of strategic investment in science, infrastructure and industrial capacity. New commentary with Inga Strümke in @ProSyn:
https://t.co/t9nD0lXkPn

[Potsdam Institute for Climate Impact Research PIK @PIK_Climate]

Definitely worth watching .

PIK Director Ottmar #Edenhofer on atmospheric carbon removal #CDR. It will be key for #climate policy. How to fund it, ensure quality, affordability & permanence.

Part 2 of our video series “Core research topics of PIK”.

👇
https://t.co/jGR4SU1OgB

[David Wallerstein @dwallerstein]

Our new film on climate change and global agriculture releases today, “Climate Extremes: Agriculture.” Here’s the link and we hope you can take some time to watch the film on YouTube!

https://t.co/KOreaO5Tsj

Many thanks @jrockstrom @Weather_West @PIK_Climate @UniofOxford !

[The Associated Press @AP]

Scientists and the UN are acknowledging the Paris climate treaty goal of limiting warming to 1.5 degrees Celsius warming is now implausible without it getting warmer and then being artificially cooled.

[Potsdam Institute for Climate Impact Research PIK @PIK_Climate]

🚨 FACTCHECK: PIK Director @jrockstrom spoke to The @AP to counter the misinformation being spread about the scientific communities' updates to future climate scenarios.
https://t.co/XtohCZ2cfi

[Zeke Hausfather @hausfath]

@Peters_Glen The new van Vuuren et al 2026 paper formally retired RCP8.5/SSP5-8.5 from the upcoming IPCC AR7. Cue celebration from skeptics (including Donald Trump: "WRONG! WRONG! WRONG!") and pushback from folks who say nothing has actually changed.

https://t.co/8BOwM43Mi3

2/11

[Johan Rockström @jrockstrom]

The planet's current state, where we are breaching multiple planetary boundaries and which manifests as public health threats impacting millions globally, provides ample scientific evidence that climate change should be declared a public health emergency of international concern.

[WHO/Europe @WHO_Europe]

There is an urgent imperative for governments and civil society to understand and affirm that #ClimateChange poses an immediate and long-term threat to health, says #PECCH an expert advisory board, who wants WHO to declare a public health emergency of international concern.

[Potsdam Institute for Climate Impact Research PIK @PIK_Climate]

🕸️💻 Register now to hear from PIK Director @jrockstrom and other experts on halting and reversing biodiversity loss and building resilience in the Earth system.

[Zeke Hausfather @hausfath]

I've updated my Climate Dashboard to provide a daily updating probabilistic ENSO forecast similar to NOAA's, using 637 ensemble members across 13 different models (weighted by unique model).

Here are the current results using the Oceanic Nino Index (ONI)

[Carbon Brief @CarbonBrief]

Factcheck: 16 misleading myths about solar power | #CBarchive

✍️@Josh_Gabbatiss @MollyLempriere
🎨 @tomoprater @joejgoodman Tom Pearson

Read here: https://t.co/hbadjvJ57L

[Zeke Hausfather @hausfath]

@Daaanvdb 3.1C, as of yesterday:

[Volcaholic 🌋 @volcaholic1]

Sir David Attenborough turns 100 next week.

"Please make no mistake. Climate change is the biggest threat to security that modern humans have ever faced."

[Johan Rockström @jrockstrom]

Check out my latest article: En Hälsning från Santa Marta https://t.co/eXY31pIvfv via @LinkedIn

[Potsdam Institute for Climate Impact Research PIK @PIK_Climate]

New global science panel to help countries move away from fossil fuels, linking climate science, economics & policy. “The science panel can play a unique role in providing updates on what needs to happen year by year," PIK Director @jrockstrom said.
https://t.co/WtQE0t1Dri