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Peter Cox

Peter Cox

@coxypm.bsky.social

9.2K followers 2.7K following 93 posts

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%

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Posts Replies Media Videos

Reposted by Peter M. Cox

Joe Clarke @joejclarke.bsky.social · 5d

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

Peter Cox @coxypm.bsky.social · 5d

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

My Zero Carbon #ClimateAction @myzerocarbon.org · 6d

.
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

Reposted by Peter M. Cox, Dana R. Fisher

James Dyke @jamesgdyke.info · 9d

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

Prof. Stefan Rahmstorf @rahmstorf.bsky.social · 9d

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

Hun Park @climate-nature.bsky.social · 12d

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

Reposted by Peter M. Cox, Peter Thorne

Hun Park @climate-nature.bsky.social · 12d

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

Reposted by Peter M. Cox, Paddy Hillyard

PIK_climate @pik-potsdam.bsky.social · 14d

"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

NextGenCarbon @nextgencarbon.bsky.social · 21d

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.

Reposted by Peter M. Cox, Rosie A. Fisher

NextGenCarbon @nextgencarbon.bsky.social · 21d

💡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

Prof. Stefan Rahmstorf @rahmstorf.bsky.social · 25d

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

Reposted by Peter M. Cox, Ben Bond‐Lamberty

Natasha MacBean @nmacbean.bsky.social · 27d

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...

Peter Cox @coxypm.bsky.social · 28d

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

Reposted by Peter M. Cox

James Dyke @jamesgdyke.info · 28d

Getting ready for this evenings derailment risk lunch event at @chathamhouse.org.

Reposted by Jens‐Christian Svenning, Oliver L. Phillips, Brian J. Enquist , and 4 more Jens‐Christian Svenning, Oliver L. Phillips, Brian J. Enquist, Peter M. Cox, Tommaso Jucker, Darío Martin‐Benito, Julen Astigarraga

Tom Pugh @tompugh.bsky.social · 29d

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/...

Reposted by Jens‐Christian Svenning, Ben Bond‐Lamberty, Arthur Argles

Peter Cox @coxypm.bsky.social · Oct 24

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

James Dyke @jamesgdyke.info · Oct 11

"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

UK Centre for Ecology & Hydrology (UKCEH) @ukceh.bsky.social · Sep 16

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

Paul Ritchie @paulritchie.bsky.social · Sep 15

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

Reposted by Peter M. Cox, Albert Weale, Mary Corcoran , and 2 more Peter M. Cox, Albert Weale, Mary Corcoran, Deborah Shaw, Ian Butler

Caroline Lucas @carolinelucas.bsky.social · Aug 31

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".

Reposted by Peter M. Cox, Richard Betts

Dan Miller @danmiller999.bsky.social · Jul 25

Sunday 7/27 at 10am PT on Climate Chat: @leonsimons.bsky.social interviews U of Exeter climate scientist Peter Cox on Acceleration of Global Warming and Climate Tipping Points.
#GlobalWarming
@coxypm.bsky.social @bikingmzstacey.bsky.social @radsci.bsky.social
youtube.com/live/5rsIoJe...

Acceleration of Global Warming and Climate Tipping Points with Peter Cox

In this Climate Chat episode, Leon Simons interviews University of Exeter climate scientist Peter Cox about the acceleration of global warming, climate tipping points, and other climate-related subjec...

Reposted by Stefan Rahmstorf

Peter Cox @coxypm.bsky.social · Jul 10

An excellent @carbonbrief.org article from @robmcsweeney.bsky.social based on discussion at the Global Tipping Points Conference last week. @gsiexeter.bsky.social

Carbon Brief @carbonbrief.org · Jul 9

NEW – Experts: Which climate tipping point is the most concerning? | @ceciliakeating.carbonbrief.org @rtmcswee.carbonbrief.org @ayeshatandon.carbonbrief.org

Read here: buff.ly/LkitgK7

Aerial view of illegal Amazon deforestation. Credit: Paralaxis / Alamy Stock Photo

Reposted by Peter M. Cox

Carbon Brief @carbonbrief.org · Jul 9

NEW – Experts: Which climate tipping point is the most concerning? | @ceciliakeating.carbonbrief.org @rtmcswee.carbonbrief.org @ayeshatandon.carbonbrief.org

Read here: buff.ly/LkitgK7

Aerial view of illegal Amazon deforestation. Credit: Paralaxis / Alamy Stock Photo

Reposted by Peter M. Cox

Prof Ceri Lewis @cezzalew.bsky.social · Jul 7

Nice article by Oceanographic magazine about our Galapagos plastics research programme.
oceanographicmagazine.com/features/inv...

Invisible enemies: A plastic crisis in our marine protected areas

When Galapagos turtle specialist Juan Pablo Muñoz-Pérez found particles in the bodies of dead turtles, he realised they had a plastic problem.

oceanographicmagazine.com

Reposted by Peter M. Cox

Global Systems Institute @gsiexeter.bsky.social · Jul 7

www.ft.com/content/6390...

Deadly 'early summer’ heatwave moves across Europe as climate scientists ring alarm bells

Fire evacuations in Greece and Turkey while temperatures in Spain and Portugal hit 46C

Reposted by Peter M. Cox, Elena Litchman

Prof Ceri Lewis @cezzalew.bsky.social · Jul 1

Great interview with Tim about Global Tipping Points.
www.theguardian.com/environment/...

‘Positive cascades could help accelerate change’: social tipping points expert on fixing climate crisis

The world has been too optimistic about the risk to humanity and planet – but devastation can still be avoided, says Timothy Lenton

www.theguardian.com

Reposted by Peter M. Cox

University of Exeter @exeter.ac.uk · Jun 30

Great to see the BBC covering our Climate Forum, which is taking place this week: www.bbc.co.uk/news/article...

Climate week in Exeter comes at 'critical time', expert says

The Exeter Climate Forum gets underway as a second heat alert in two weeks is issued.

Reposted by Peter M. Cox

Leon Simons @leonsimons.bsky.social · Jun 21

Today is #ShowYourStripesDay

I made a high resolution version of the global warming stripes by using monthly rather than annual temperatures.

Reposted by Peter M. Cox

Global Systems Institute @gsiexeter.bsky.social · Jun 18

🎉 We’re SOLD OUT! 🎉

The GTP conference is officially at capacity — thank you to everyone who secured their spot! 🌍💥

We can’t wait to welcome an incredible line up of speakers to Exeter, including special guest Tulio Andrade, Head of the CoP30 Climate Negotiation team. 🌱🗣️

Reposted by Peter M. Cox

EarthlyEducation @earthlyeducation.bsky.social · Jun 18

We will overshoot 1.5°C of global warming, that is quite certain…but it’s not game over. The damage will be real — species loss, food insecurity, climate chaos — but if we act fast, we can still bring temperatures back down.