Rob Larter
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polarrobs.bsky.social
Rob Larter
@polarrobs.bsky.social
Polar marine scientist. UK Science Lead in Science Coordination Office of International Thwaites Glacier Collaboration. Views are my own.
On Mastodon @[email protected]
Pinned
🧪🧵 Future change to #ThwaitesGlacier, Antarctica constitutes the largest uncertainty in #sea-level rise forecasts. The Science Coordination Office of the International Thwaites Glacier Collaboration recently issued a briefing document summarising some key findings - thwaitesglacier.org/findings
Reposted by Rob Larter
Was there any coverage of the recent record warmth in both the Arctic and Antarctic? Multiple global datasets now confirm these records, and I think it's really quite striking.

Here's some very quick plots showing NOAAGlobalTempv6 data from October too. And see my earlier posts.
November 22, 2025 at 2:20 AM
Petition to save Geology at the University of Leicester
c.org/h9rysz2C9x
Finances are extremely stretched in UK higher education, but it's hard to understand a university drastically cutting a field critical to the energy transition and understanding of the changes taking place in the world today.
Sign the Petition
Save Geology at the University of Leicester
c.org
November 24, 2025 at 6:04 PM
Reposted by Rob Larter
Another climate conferernce ends, another missed opportunity to avert disaster. We've failed to limit warming to 1.5°C. The worlds is going to become more dangerous. This means climate policy must reflect this new reality. 1/6
www.technosphere.earth/living-beyon...
Living beyond limits
Decades of climate policy failure means we must find ways to live in a more dangerous world
www.technosphere.earth
November 24, 2025 at 8:26 AM
If you've bashed your head against a door 30 times and it hasn't budged it's probably time to rethink your approach to getting through it.
🧵 After 30 years of COP meetings we are still stuck with
> countries being urged to "voluntarily" accelerate their action to reduce their use of fossil fuels.
> no agreement on a roadmap to halt deforestation

www.bbc.co.uk/news/article...
COP30: UN climate talks fail to secure new fossil fuel promises
Nearly 200 countries attended COP30, which aimed to commit the world to take more action on climate change.
www.bbc.co.uk
November 23, 2025 at 10:56 AM
Reposted by Rob Larter
"Warming is going to exceed 1.5°C. We are heading into overshoot within the next few years": a stark message by PIK Director Rockström & James Dyke in @theconversation.com. Yet, science shows a way back: fossil-fuel phase-out, nature protection, carbon removal.
theconversation.com/the-world-lo...
The world lost the climate gamble. Now it faces a dangerous new reality
The world bet on collective but voluntary action to keep global warming at a safe level.
theconversation.com
November 22, 2025 at 2:07 PM
Reposted by Rob Larter
"My NHS colleagues & I weren’t willing to let the bodies pile high in their thousands. Boris no longer mentions them at all."

My piece on the responses to the UK Covid-UK Inquiry report that try to airbrush the dead away.

Sincere thanks, @theobserveruk.bsky.social.

observer.co.uk/news/nationa...
I’ll never forget the horror of the Covid wards | The Observer
observer.co.uk
November 23, 2025 at 9:18 AM
Reposted by Rob Larter
Drowning in denial: one in five homes in Reform UK heartlands faces flooding in 25 years

Even as the party rolls back climate action, Reform-controlled councils sit on some of England’s worst rising flood risks

By Nafeez Ahmed
Drowning in denial: one in five homes in Reform UK heartlands faces flooding in 25 years
Even as the party rolls back climate action, Reform-controlled councils sit on some of England’s worst rising flood risks
yorkshirebylines.co.uk
November 20, 2025 at 11:06 AM
At present the issue is how to reinforce existing infrastructure or fortify shoreline, or relocate, Indigenous villages. In future decades major coastal cities around the world will face the same dilemma. Metres of sea-level rise are committed, even if we succeed in reaching net zero.
November 23, 2025 at 8:12 AM
"If Britain wants to recover, the first step is to stop pretending everything is fine. The second is to recognise that reconnecting with Europe may not be a political choice anymore, but an economic necessity."
November 23, 2025 at 7:44 AM
🧵 After 30 years of COP meetings we are still stuck with
> countries being urged to "voluntarily" accelerate their action to reduce their use of fossil fuels.
> no agreement on a roadmap to halt deforestation

www.bbc.co.uk/news/article...
COP30: UN climate talks fail to secure new fossil fuel promises
Nearly 200 countries attended COP30, which aimed to commit the world to take more action on climate change.
www.bbc.co.uk
November 23, 2025 at 12:17 AM
Reposted by Rob Larter
Reflections on COP30 Global Mutirão final decision text:
November 22, 2025 at 3:36 PM
Reposted by Rob Larter
If we don't rapidly phase out fossil fuels, we can say goodbye to coral reefs, the Greenland and Antarctic icesheets, and permafrost. The results will not be pretty.
3 massive changes you'll see as the climate careens toward tipping points
Scientists are increasingly concerned that the planet is headed for massive, irreversible changes due to global warming. In some cases, those changes have already begun.
www.npr.org
November 19, 2025 at 3:42 PM
Don't know who's responsible for this but it seems like a case of #youhadonejob
November 19, 2025 at 11:09 AM
Reposted by Rob Larter
Big Polar Plunge across Europe as the jet stream takes a nose dive! Temps 10-20C below normal! Lots of snow in the mountains!!
November 19, 2025 at 6:54 AM
Reposted by Rob Larter
Lowest global sea ice maximum area on record. 🧪
November 17, 2025 at 5:56 PM
The displays of the "historic" climbing gear on the walls of the mountaineering club hut where I was staying this weekend made me feel very old.
November 17, 2025 at 8:30 AM
The spectacular Cathedral Quarry near Little Langdale, Cumbria
November 17, 2025 at 8:25 AM
Reposted by Rob Larter
“If we wait to cross tipping points before we act, it will be too late. The only credible risk management strategy is to act in advance.”
global-tipping-points.org/the-dartingt...
The Dartington Declaration - Global Tipping Points
The Dartington Declaration has emanated from scientific meetings held at Dartington Hall in England, and then a statement agreed at the Global Tipping Points Conference, on 30 June – 3 July 2025. It w...
global-tipping-points.org
November 15, 2025 at 3:21 PM
Reposted by Rob Larter
All nations committed under the Paris Agreement to limit global warming to 1.5 degC for good reason. Instead many governments are beholden to the fossil fuel lobby and even subsidize fossil fuel use with your money. We’re now at 1.4 degC & emissions are rising not falling.
unfccc.int/process-and-...
November 15, 2025 at 4:09 PM
Reposted by Rob Larter
Another dataset confirms that last month was the warmest October on record in the #Arctic. The previous record was 2024. This is already a month with a very large increasing temperature trend (i.e., Arctic amplification). Not good.

Data from NASA/GISS GISTEMPv4 (data.giss.nasa.gov/gistemp/).
November 15, 2025 at 4:15 PM
Reposted by Rob Larter
Reform UK energy plans crumble under scrutiny

Reform UK rails against net zero, but the evidence shows green jobs and growth are already powering the UK economy

@yorkshirebylines.co.uk
@bylinesnetwork.co.uk

yorkshirebylines.co.uk/politics/ref...
Reform UK energy plans crumble under scrutiny
Reform UK rails against net zero, but the evidence shows green jobs and growth are already powering the UK economy
yorkshirebylines.co.uk
November 14, 2025 at 7:23 AM
Reposted by Rob Larter
More than 1,600 fossil fuel lobbyists granted access to the Cop30 climate negotiations in Belém (Brazil), 12% up from last year’s talks in Baku, Azerbaijan.

What should be the most serious, urgent talks on the planet continue to be a farce.
www.theguardian.com/environment/...
Fossil fuel lobbyists outnumber all Cop30 delegations except Brazil, report says
One in every 25 participants at 2025 UN climate summit is a fossil fuel lobbyist, according to Kick Big Polluters Out
www.theguardian.com
November 14, 2025 at 4:46 PM
Reposted by Rob Larter
With current pledges, the world's on track for 2.6°C of warming in 2100 compared to preindustrial levels.

10 years ago, before the Paris agreement, it was 3.6°C

20+ years ago, we thought it would be 4-5°C

So 2.6°C is better, but the problem is that climate impacts are way worse than we predicted.
World still on track for catastrophic 2.6C temperature rise, report finds
Fossil fuel emissions have hit a record high while many nations have done too little to avert deadly global heating
www.theguardian.com
November 13, 2025 at 12:55 PM
Reposted by Rob Larter
Huge COPs are an equity issue.

We don't hear marginalised voices above the din of who can afford the pavilions, flights, comms teams, or hosting.

theconversation.com/the-un-clima...
The UN climate talks have become too big for their own good
Cop30 will have 50,000 delegates. But bigger Cops are not better Cops.
theconversation.com
November 11, 2025 at 8:01 PM
For some reason I keep thinking of Dr Evil today.
dr. evil from the movie dumb and dumber is sitting in a chair .
ALT: dr. evil from the movie dumb and dumber is sitting in a chair .
media.tenor.com
November 11, 2025 at 8:06 AM