Cedric Knight 🌍

Tell Rachel Reeves: don’t put plane profits before planet Chancellor Rachel Reeves has backed airport expansion while we're in a climate emergency. Expanding airports like Heathrow, Luton and Gatwick won’t do much, if anything, for the communities that need ...

Join me and tell Chancellor Rachel Reeves: no more airport expansion while we’re in a climate emergency 🚨🌎
@friends-earth.bsky.social 👇 action.friendsoftheearth.uk/petition/sto...

Tell the Energy Secretary: attend the Colombia summit Governments will meet in Colombia in April for the first ever international conference focused solely on the fossil fuel phase-out. Fossil fuels and the companies that make billions from them are an e...

I’ve written to the Energy Secretary to tell him he must be at the first international conference to phase-out fossil fuels.

We have a key opportunity to end the fossil fuel era and make sure it takes corporate courts with it. Write to Ed Miliband here: act.globaljustice.org.uk/tell-energy-...

End Fossil Fuels Forever Time is running out. Our planet is hitting record temperatures, while coal, oil and gas giants rake in billions, and our energy bills skyrocket. But we finally have a chance to break the cycle. Over 8...

I support this petition to end fossil fuels forever. You should, too! act.350.org/sign/end-fos...

Defend Our Juries Co-Founder Tim Crosland explains what the High Court ruling showing over the Palestine Action ban means in real terms.

He adds a renewed call for a meeting with Home Secretary Shabana Mahmood to discuss the harm that has been done since this ban was introduced.

Ipbes report: Nature loss could spell extinction for businesses Experts call for urgent action by businesses to restore the natural systems that keep them running.

Nature provides foundations for many businesses, but not indefinitely under current conditions: www.bbc.co.uk/news/article...

Send a postcard to your MP/MSP to #StopRosebank Every MP and MSP needs to hear directly from their constituents that the government must stop Rosebank. Take 2 minutes: send a physical postcard directly to your MP or MSP’s office.

I’ve just sent a postcard to my MP/MSP asking them to #StopRosebank - the biggest undeveloped oil field in the UK. Can you join me in using this nifty tool? @stopcambo.bsky.social

stoprosebank.postbug.app

Send a postcard to your MP/MSP to #StopRosebank Every MP and MSP needs to hear directly from their constituents that the government must stop Rosebank. Take 2 minutes: send a physical postcard directly to your MP or MSP’s office.

I’ve just sent a postcard to my MP/MSP asking them to #StopRosebank - the biggest undeveloped oil field in the UK. Can you join me in using the tool? @stopcambo
stoprosebank.postbug.app

Important new @annualreviews.bsky.social review on #AMOC collapse. 🌊⚠️

🔗 www.annualreviews.org/content/jour...

Here are 8 key takeaways from Dijkstra & van Westen (2026) on the Atlantic Meridional Overturning Circulation and its risks.

👇🧵

AMOC transports considerably more heat than the Gulf Stream. The best models suggest significant probability of collapse. Check Prof Stefan Rahmstorf.

🧵A political/media guide to the "truth" about net-zero

1) Add up costs to install & run a net-zero energy system
2) Pretend fossil-fuelled alternatives wld be free
3) Do say "eco zealots are bankrupting us"
4) Don't say "free cars if we scrap net-zero" cos it sounds ridiculous
5) That's it!

1/10

The utterly shameless & widely covered "report" out today, claiming net zero will "cost" £9tn is based on:

* Assuming free fossil-fuel energy, free petrol cars, free gas boilers, free gas power plants etc

AND

* Including climate damages in the "cost" of net zero

I kid you not, it is that stupid

The UK government's auction for offshore wind projects this morning confirms that renewable energy is good value for money. @shaunspiers1.bsky.social, executive director at Green Alliance, says ⬇️

Stand in solidarity with the Odette Case claimants! Survivors of Typhoon Odette are taking Shell to court over its contribution to the climate crisis and the devastation of the super typhoon. Stand with them!

Shell must pay for its share of responsibility. I’m standing with the survivors of Typhoon Odette in the Philippines in their fight against Shell. Sign now to join me: odettecase.org/take-action?...

TotalEnergies: French court ruling over false climate claims could boost African cases against polluters Some African countries have consumer protection laws that they could use to hold fossil fuel companies accountable for pretending to be green.

More bad news for "Total", and therefore good news for everyone else:
theconversation.com/totalenergie...

Britain withdraws $1.15 billion backing from TotalEnergies-led Mozambique LNG The British government has decided to withdraw its $1.15 billion backing for the TotalEnergies-led Mozambique Liquefied Natural Gas project, it said on Monday.

CAMPAIGN WIN 🎉

The UK is withdrawing funding from a massive gas power plant in Mozambique. Funding this carbon bomb would have been a climate and human rights disaster. Thanks to campaigners keeping up the pressure, today we can celebrate this huge win

www.reuters.com/business/ene...

💥 LE FINAL de notre action « Fin de la COP30 : Jour de Colère » - à regarder jusqu’au bout 💙.

@scientifiquesenrebellion.fr et l'Orchestre du nouveau monde jouent le Dies Irae de Verdi après de 8h de lectures de textes scientifiques lors d'une action de 10h marquant les 10 ans de l'Accord de Paris.

Decision time: Tell Keir to #StopRosebank This is the moment we've been building towards: it's final decision time for the UK Government. Equinor is trying to get the new Rosebank oil field re-approved. It's up to us all to convince the Gover...

Hello @scientistsforxr.earth

I hope you all know that the government is shortly to decide whether to scrap or greenlight Rosebank - the UK's biggest undeveloped oil field.

There's a consultation open now. Please have your say BY WEDNESDAY
actionnetwork.org/forms/the-go...

Please share!

Health leaders call on PM to reject Rosebank to protect health - UK Health Alliance on Climate Change Granting access to exploit the Rosebank Field would fly in the face of the Government’s ambition to shift our health service from sickness to prevention, to save our NHS budget, to drive growth in the...

Health leaders: "Granting access to exploit Rosebank would fly in the face of the Gov’s ambition to shift our health service from sickness to prevention, save our NHS budget, drive growth in the green economy & address climate change at pace and scale."
ukhealthalliance.org/news-item/he...

Decision time: Tell Keir to #StopRosebank This is the moment we've been building towards: it's final decision time for the UK Government. Equinor is trying to get the new Rosebank oil field re-approved. It's up to us all to convince the Gover...

Today is the last day of the government Rosebank consultation. If you haven't added your name yet please do:
actionnetwork.org/forms/the-go...

Thresholds of catastrophe in the Earth system The geochemical record of past disruptions of Earth’s carbon cycle reveals thresholds beyond which mass extinction occurs.

There's a difference between non-extinction (some individuals of some genera or families surviving), and abundance.

Here's the ref in the diagram doi.org/10.1126/scia... and extract from Peter Brannen book:
www.theguardian.com/environment/...

My point is that latent environmental damage (particularly ocean carbon disruption over centuries) *could* end the Cenozoic and sufficient food web productivity and atmosphere to support large mammals.

Most climate scientists say human extinction very unlikely from fossil fuels. I'm not so sure.

The mineral exhaustion reminds me of Stapledon, 'Last and First Men'. I imagine with SLR/climate, there'd also be a taboo against mining. But empires can collapse and leave coil windings.

Why will reactors leak high-level waste? (See criticism of Jem Bendell).

The work of Rothman and associates is so important. There is negative feedback (silicate weathering) at timecales >100,000 years, but positive feedbacks on century/millennia timescales, suggesting potential for a future Canfield ocean. #rothmancarbonthreshold

Pasting pic as reminder of fluxes.

‘We don’t know where the tipping point is’: climate expert on potential collapse of Atlantic circulation Oceanographer Stefan Rahmstorf explains why Amoc breakdown could be catastrophic for both humans and marine life

PS 3/2: by 'contingent', I mean limited and subject to global change. I can see some European civilisation surviving #AMOCcollapse, but OTOH see human extinction under a Canfield ocean period.

AMOC records are uncertain, as is the tipping point.
www.theguardian.com/environment/...

My diagram of four carbon cycles: 400 GtCO₂/year from photosynthesis, 7 to animals, 200 in ocean gas exchange, and very slow natural rates about 0.5 from weathering and carbonate depostion. The slow carbon cycle is massively perturned by 35 GtCO₂/year from coal, oil and gas.

Sorry if you've seen this diagram before, but I use it to argue that biogenic CO₂ and methane is irrelevant on century and longer timescale. We ignore oceans and the #slowcarboncycle at future civilisations' peril.

I have contingent confidence in H sapiens's ability to adapt.

#carboncycle

2/2

CO2 proxies over common era (past 2025 years) from Keeling Curve website. Noticeable dip around 1600.

Thanks for links. Hadn't heard of 2030s 'moon wobble'. I'd seen Maslin on CO2 from European invasion. That and Mongol invasion may be detectable on proxy records, but are tiny compared to industrial perturbation. Plus... 1/2.

Things looking bad but uncertain IMHO. I'm still with decarb groups.

The Cuban missile crisis was not the only time we came very close to nuclear war. There are accidental near-launches, and speaking of accountability, scenarios like "A House of Dynamite". Even a India-Pakistan was has been projected to cause 2 bn deaths from nuclear winter. 3/3

...since there is thermal inertia in the oceans. Sea-level rise and glacier retreat would continue, and co-extinctions. Even the AMOC shutdown could take decades to tip. One slow but massive tipping point is the Rothman carbon threshold.

As for nuclear war, that's a little optimistic too IMHO. 2/

Thanks for the reply. These are just my speculations. Hope to read Luke Kemp soon.

I disagree with "on an EOC-inducing pathway, the self-destruction occurs early enough, and EOC causes a climate-rollback." There are slow tipping points not rollback. EOC doesn't lower temperatures... 1/

Gates is thinking about impacts now and tech of the future, when IMHO we should be thinking about impacts now and in future decades and centuries and how we can reduce them immediately.

3/3