Peter Cox
coxypm.bsky.social
Peter Cox
@coxypm.bsky.social

Climate scientist who believes that the world is simpler than it looks. Director of Global Systems Institute, University of Exeter

Peter M. Cox CBE is professor of Climate System Dynamics within the Mathematics and Statistics at the University of Exeter. He is also the director of the Global Systems Institute. Until 2006 he was the Science Director - Climate Change at the Centre for Ecology and Hydrology, and before that he worked at the Hadley Centre for Climate Prediction and Research (1990-2004). .. more

Environmental science 60%
Geography 18%

Climate modelling work (e.g. GeoMIP) suggests that SRM geoengineering could work as a temporary/emergency way to cool the climate. This certainly does not justify large-scale implementation at this stage. However, open research on SRM needs to be encouraged, not driven underground.

Reposted by Peter M. Cox

“Out of a superhero movie: Companies are coming up with plans to block out the sun”

It’s not a planetary light switch — it’s risky, limited research being sold as a climate silver bullet

www.independent.co.uk/climate-chan...
Inside the multi-million dollar race to dim the sun and stop climate change
Private companies are jumping into the race to deploy particles to the atmosphere to reduce global warming, prompting enthusiasm from investors and concerns from some scientists, Josh Marcus reports
www.independent.co.uk

Reposted by Peter M. Cox

👉 Trump’s shuttering of the National Center for Atmospheric Research is Stalinist

www.theguardian.com/commentisfre...
Trump’s shuttering of the National Center for Atmospheric Research is Stalinist | Michael Mann and Bob Ward
This is the latest in the relentless purge of climate researchers who refuse to be co-opted by the fossil fuel industry
www.theguardian.com
“The point of modern propaganda isn't only to misinform or push an agenda.

It is to exhaust your critical thinking, to annihilate truth.”

- Garry Kasparov
The Nobel Prize committee should announce the World Cup winner tomorrow
FIFA is a joke. Infantino is corrupt. The beautiful sport had to fire him and clean out the rot. 🤬🤬🤬

Absolutely disgraceful from @fifaworldcup26.bsky.social!

Is this a joke, @fifaworldcup26.bsky.social? How corrupt are you to honour the most despicable US President in living memory?
this shit is just beyond parody, man

Reposted by Peter M. Cox, Du Toit

I will be giving the final @gsiexeter.bsky.social seminar of 2025 "Living beyond limits: Consequences of missing the decisive decade for preserving our planet’s life-supporting systems." 10th Dec 2:30pm UK time. You can join remotely👇
universityofexeter.zoom.us/j/9357183404...

Reposted by Peter M. Cox

I wrote this paper to work how the climate-carbon system could enter a runaway state 👇

esd.copernicus.org/articles/16/...
Conditions for instability in the climate–carbon cycle system
Abstract. The climate and carbon cycle interact in multiple ways. An increase in carbon dioxide in the atmosphere warms the climate through the greenhouse effect, but also leads to uptake of CO2 by th...
esd.copernicus.org

Reposted by Peter Thorne

Fascinating new paper from Joe Clarke et al., which addresses the question: could the climate-carbon system suffer a self-sustaining runaway feedback? @gsiexeter.bsky.social @ukceh.bsky.social @bolincentre.bsky.social
esd.copernicus.org/articles/16/...
Conditions for instability in the climate–carbon cycle system
Abstract. The climate and carbon cycle interact in multiple ways. An increase in carbon dioxide in the atmosphere warms the climate through the greenhouse effect, but also leads to uptake of CO2 by th...
esd.copernicus.org

Reposted by Peter M. Cox

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10% GDP boost to Global South from clean energy transition

We need to take urgent #ClimateAction right now to avoid the worst of Climate Change!

Find out more: www.smithschool.ox.ac.uk/ne...
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10% GDP boost to Global South from clean energy transition
A new Oxford Smith School report finds a rapid switch to renewables could double energy-sector productivity in low-to-middle income economies within 25 years. In many countries, this would result in a GDP boost by mid-century of around 10%.
www.smithschool.ox.ac.uk
At 5:30pm UK time I will be joining @rogerhallam.com, @fisherdanar.bsky.social, @jeremylent.bsky.social for our panel discussion "Collapse in the 21st century and apocalyptic optimism", part of REV21. Join 👇
events.zoom.us/ejl/AjPpsEFu...

Reposted by Peter M. Cox

In 2024, renewable energy accounted for over 90% of global power capacity expansion. That is because it makes economic sense. IRENA_DAT_RE_Capacity_Highlights_2025-1.pdf

Reposted by Peter M. Cox

Components of the global carbon budget and their uncertainties as a function of time

bit.ly/GCB2025-b

Friedlingstein, P. et al. (2025). Global Carbon Budget 2025. Earth System Science Data Discussion, (Under Review). DOI:10.5194/essd-2025-659
Where Anthropogenic CO2 Emissions Go (2015–2024 Average)

bit.ly/GCB2025-a

Friedlingstein, P. et al. (2025). Global Carbon Budget 2025. Earth System Science Data Discussion, (Under Review). DOI:10.5194/essd-2025-659
"As a scientist, I've never had reason to be so concerned as I am today for the future we are facing," states PIK Director Johan Rockström as #COP30 kicks off in Belém, Brazil. The first ever Planetary Science Pavilion, under the mandate from COP30 Brazil, and together with Carlos A. Nobre,... 1/2
Raising the Voice of Science: COP30’s New Planetary Science Pavilion in Belém
YouTube video by Potsdam Institute for Climate Impact Research PIK
www.youtube.com

Reposted by Peter M. Cox

Read comments on the news article from the following #NextGenCarbon colleagues: Peter Cox @coxypm.bsky.social, Rosie Fisher @rosieafisher.bsky.social, Sebastiaan Luyssaert and Guillaume Marie.
Bluesky
er.bsky.social
💡Read the latest #NGC news article to find out how this first multi-model benchmarking study identified growth and mortality rates as critical variables in the development of vegetation demographic models (VDMs). Click the link below: nextgencarbon-project.eu/news-thefirs...
The first multi-model benchmarking study | NextGenCarbon
nextgencarbon-project.eu

Reposted by Peter M. Cox

The annual 10 new insights in climate science are here!
Perhaps the best way to keep up with climate science news of the past year, made for lay people, policy makers and scientists alike with its different levels of detail: from simple tiles to a journal paper.
10insightsclimate.science#explore
10 New Insights in Climate Science
Essential research findings to support decision-making in a critical decade.
10insightsclimate.science
Out today in JAMES!! Parameter Estimation in Land Surface Models: Challenges and Opportunities With Data Assimilation and Machine Learning doi.org/10.1029/2024... led by Nina Raoult, Natalie Douglas, @janasknits.bsky.social, @tquaife.bsky.social, me, and an awesome team of folks in the community 1/2
Parameter Estimation in Land Surface Models: Challenges and Opportunities With Data Assimilation and Machine Learning
Data assimilation (DA) has been shown to be a powerful tool for reducing land surface model (LSM) parametric uncertainty Machine learning can facilitate parameter estimation by enhancing computat...
doi.org

Like most good things, it started with dinner.....

Reposted by Peter M. Cox

Getting ready for this evenings derailment risk lunch event at @chathamhouse.org.
How can we explore the future of the world's forests? Understanding the demography of their trees is key. In We took the new gen of global demographic vegetation models and held their roots to the observations. Thanks @annemarie-es.bsky.social for leading! nph.onlinelibrary.wiley.com/doi/10.1111/...
Just published, a land-mark paper by Annemarie Eckes-Shephard et al.! It assesses the performance of a new generation of Demography-enabled Dynamic Global Vegetation (D-DGVMs), that attempt to simulate the changing size and age structure of trees in forests.
nph.onlinelibrary.wiley.com

Reposted by Peter M. Cox

"Infamy! Infamy! They've all got it in for me!" Keneth William's line from Carry on Cleo and one of my favourite one-liners. It's taken from Denis Norton's and Frank Muir's radio comedy show "Take It from Here".
a woman is standing in a doorway in a room with purple curtains and a candle holder .
Alt: Actor Keneth Williams playing the role of Julius Caesar runs into a room shouting "Infamy, infamy, they've all got it in for me" while being chased by a Roman soldier with a sword.
media.tenor.com

Reposted by Peter M. Cox

Crossing a climate tipping point doesn't mean tipping is inevitable - a threshold can be temporarily passed if overshoot is short-lived.

Limiting time over 1.5 °C would considerably reduce tipping point risks.

New Ideas paper from @exeter.ac.uk & UKCEH: esd.copernicus.org/articles/16/... 🧪
ESD Ideas: Climate tipping is not instantaneous – the duration of an overshoot matters
Abstract. Climate tipping points are not committed to occur automatically upon crossing critical thresholds in global warming, as is often assumed. Instead, it is possible to temporarily overshoot a t...
esd.copernicus.org

Reposted by Peter M. Cox

New paper in ESD (esd.copernicus.org/articles/16/...) showing duration of overshoot matters for preventing climate systems from tipping. Crossing a tipping point does not equal tipping. Risk reduced if overshoot duration beyond 1.5 °C kept below a century. @coxypm.bsky.social @gsiexeter.bsky.social
Why on earth do the Tories want to keep people locked into high energy bills? And, come to that, why is the BBC citing Reform but saying nothing about climate science or renewable alternatives?
Complete madness - except for the fossil fuel industry of course
Tories pledge to get 'all our oil and gas out of the North Sea'
The government warns Kemi Badenoch's plans would "only accelerate the worsening climate crisis".
www.bbc.com