Alex Romero Prieto

OUT NOW: Global Tipping Points Report 2025
global-tipping-points.org

Our chapter on the "Implications of overshooting 1.5°C for
Earth system tipping points" is based on an associated paper: doi.org/10.31223/X52...

Minimizing climate overshoot is essential to prevent climate tipping points.

Only a few days left to send us your feedback about our plans to run the upcoming RCMIP phase!

We hope this intercomparison will be useful for the whole reduced-complexity modelling community. So:

✔️ contribute feedback
✔️ help design simulations
✔️ take a supporting or leading role

Please share with colleagues who might be interested—everyone’s welcome!

We’ve drafted:

a roadmap (plans + timelines): leeds365-my.sharepoint.com/:w:/g/person...

a list of requested simulations & variables (tiered): leeds365-my.sharepoint.com/:x:/g/person...

Deadline for comments: 1 Oct

We are hoping to IPCC AR7 with this exercise, which will include a new intercomparison of SCM carbon cycles.

We are also very open to the community driving intercomparisons of other model cliamate processes, so do get in touch if you would like to join this effort.

🌍📢 Calling all emulator / reduced-complexity / simple climate modelling groups!

The next round of the Reduced Complexity Model Intercomparison Project (RCMIP) is starting, and we’d love your feedback.

A prudent planetary limit for geologic carbon storage - Nature A risk-based, spatially explicit analysis of carbon storage in sedimentary basins establishes a prudent planetary limit of around 1,460 Gt of geological carbon storage, which requires making explicit ...

Our paper is out today in @nature.com where we assess a Prudent Planetary Limit for Geologic Carbon Storage:

www.nature.com/articles/s41...

I reviewed all 14 SCMs participating in at least one of the two rounds of RCMIP, summarising their development history and internal structure.

Essentially, it is the document i would have liked to have at the start of my PhD when I needed to get up-to-speed with climate emulation by SCMs.

The pre-print for my review of simple climate models (SCMs) is out! This is a deep dive on how SCMs actually simulate climate, looking at the different steps in the emissions-temperature causal chain.

You can find it here: egusphere.copernicus.org/preprints/20...

YouTube video by Channel 4 News Gary Stevenson on taxing the rich and why you're getting poorer | WTCTW podcast

Interesting read. It reminded me of the arguments that Gary Stevenson has been making for a while, namely that the current economic system, particualrly the tax system, is engineered to exacerbate those inequalities. A wealth tax seems the most obvious answer.
youtu.be/0quhLtBXijM?...

Excited for the conference tomorrow in my home city. If you are also attending and want to meet drop me a message, happy to chat between sessions!

Currently travelling to Manchester for the Royal meteorological society early careers and student conference, where I will be chairing the session on extreme weather events as part of the organising committee. Do say hi if you are around!

Reminder: call for abstracts for the CMIP Community Workshops. Latest developments in models & approaches, reflections on CMIP6, explorations on CMIP7, etc.

In particular for those related to climate emulators, I encourage you to check the session 29.

All info here: wcrp-cmip.org/event/cmip26/

I want to connect with and highlight more trans voices working with plants, wildlife, and the natural environment so I've created a starter pack!

If this sounds like you, introduce yourself by quote-posting this skeet and I'll add you to the list 🏳️‍⚧️

reminder, bsky has a clever way to display pronouns that's built in!

but you only see them if you yourself opt in, so please feel free to here by subscribing and then choosing which applies!!

@pronouns.diy

New paper on the risks of forest ecosystem impacts under emissions pathways designed to meet the Paris Agreement temperature goals is out today in Nature Climate Change! 🌳

Read it here: www.nature.com/articles/s41558-025-02327-9

New study on linking wealth-based emissions to climate impacts: We find that 2/3 of global warming is attributable to the wealthiest 10% and so are climate extremes.
Article: www.nature.com/articles/s41...
@iiasa.ac.at, @usyseth.bsky.social
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💰🌍 Research by Sarah Schöngart et al. shows the wealthiest 10% caused TWO-THIRDS of global warming since 1990. The top 1% have an even bigger impact on extreme weather like #heatwaves and #droughts, hitting vulnerable regions hardest.

usys.ethz.ch/en/news-even...

Thanks to everyone who stopped by my poster at #EGU25 – I really appreciated the engaging discussions and thoughtful feedback. Going back to Leeds with plenty of new ideas to try.

Here's @arp-climate.bsky.social presenting on the upcoming process-based carbon cycle in FaIR at #EGU25!

Friendly reminder that I'm presenting today my poster about the new carbon cycle model I've been developing for inclusion in the FaIR SCM. Come and have a chat if you are interested. To sweeten the deal, I'm also bringing sweets!

I'll be presenting my poster on the new carbon cycle model I've been developing on Wednesday at 14:00 in X3.55. Come by if you wanna know more or just fancy a chat on simple climate models.

Excited for my first EGU!

This highlights the necessity for more stringent data quality control protocols in future CMIP iterations, with rigorous application by modeling teams. #ClimateModeling #CMIP6 #DataQuality

Investigating carbon and nitrogen conservation in reported CMIP6 Earth system model data Abstract. Reliable, robust, and consistent data are essential foundations for analysis of carbon cycle feedbacks. Here, we consider the data from multiple Earth system models (ESMs) participating in t...

Hi Bluesky! 👋 I'll get the ball rolling by sharing a paper I contributed to and has recently been published in GMD: gmd.copernicus.org/articles/18/....

We took a look at carbon and nitrogen data from CMIP6 climate models and found some significant mass imbalances in the reported data.