Ben Sanderson
@benmsanderson.bsky.social
Climate scientist at CICERO, Oslo. I try to talk about climate science, but inevitably start talking about trains and bicycles if left unattended.
Watching the news in france last night was wall to wall climate impacts - heatwaves, wildfires, crop failures. We spent the well hiking around melted glaciers on Mont Blanc, and our last night here brings crazy thunderstorms. Climate anxiety not exactly being calmed by this holiday...
The anti-woke lot know that air conditioners ARE heat pumps ... right? www.theguardian.com/environment/...
From ‘heat panic’ to ‘sacrificed at the altar’: Europe’s air conditioning culture wars heat up
Cooling down has become political amid record highs, as experts say row is distracting from work of protecting lives
theguardian.com
Another way of slicing it - for event as rare as this one (~1 in 40 years), the hottest-day French national-average temperature would be: - 1.0 °C hotter in a 2 degreeC world - 2.6 °C hotter in a 3 degreeC world So, the national average extreme warming runs about ~1.6× faster than global mean temp
Ben Sanderson@benmsanderson.bsky.social · last mo.Recent French national average temperatures: - impossible in a pre-industrial world, - about 1 year in 40 years in a 1.5C world - 1 in 10 years in a +2 °C world - 3 degree world - happens every other year interactive/method/maps here (également en français): benmsanderson.github.io/futureevent/
Just spent a solid 30 seconds wondering why Vector Auto Regression (VAR) was a trending topic
Recent French national average temperatures: - impossible in a pre-industrial world, - about 1 year in 40 years in a 1.5C world - 1 in 10 years in a +2 °C world - 3 degree world - happens every other year interactive/method/maps here (également en français): benmsanderson.github.io/futureevent/
What is the future of summers in England? Our choices matter. A high-emissions future will commit our children and grandchildren to live in a world where the summers of 1976 & 2025 are cold. A global net-zero emissions future means that we can stabilise the climate & those summers will be normal.
Can you blame climate scientists for getting disgusted with politicians?: Climate scientists appalled by politicians' refusal to accept responsibility as heatwave hits France www.lemonde.fr/en/environme...
Climate scientists appalled by politicians' refusal to accept responsibility as heatwave hits France
Valérie Masson-Delmotte, Jean Jouzel and Christophe Cassou say that years of warnings issued from scientists about the consequences of global warming have not been taken more seriously.
lemonde.fr
A US federal judge has ruled against the Trump administration, preventing it from handing off a piece of the National Center for Atmospheric Research (NCAR). See how we covered the battle over NCAR as it kicked off in court last month. go.nature.com/4u3jvIV
World-leading climate centre takes Trump administration to court
Universities that run the National Center for Atmospheric Research want to keep it from being dismantled.
go.nature.com
NCAR just won in court! A US district judge in Colorado has prohibited NSF from taking #NCAR apart, specifically in spalling off its supercomputing center in Wyoming. storage.courtlistener.com/recap/gov.us... Our earlier story on this and why it matters: www.nature.com/articles/d41... 🧪
World-leading climate centre takes Trump administration to court
Universities that run the National Center for Atmospheric Research want to keep it from being dismantled.
nature.com
We have a new preprint this week. When CO2 emissions stop, warming in the pipeline is controlled by two big opposing effects - thermal response to energetic imbalance *and* carbon sink evolution. We assess their roles in the flat10MIP ensemble /thread/ egusphere.copernicus.org/preprints/20...
Decomposition of the Zero Emissions Commitment into thermal warming pipeline and carbon buffering components
Abstract. The Zero Emissions Commitment (ZEC), the residual warming after anthropogenic CO2 emissions cease, remains poorly constrained and directly affects remaining carbon budget calculations. We fi...
egusphere.copernicus.org
One datacenter. 9GW. powered entirely by natural gas turbines is about 31 million tonnes of CO2 per year. About the same as Switzerland. www.theguardian.com/us-news/2026...
‘Irresponsible’: backlash as Utah approves datacenter twice the size of Manhattan
Facility would require more power than entire state uses and suck up vast amount of water in drought-stricken area
theguardian.com
Universities that run the National Center for Atmospheric Research want to keep it from being dismantled
Top climate research center at risk of cuts sues Trump administration
Universities that run the National Center for Atmospheric Research want to keep it from being dismantled
scientificamerican.com
Hi everyone, in the course of NorESM development for CMIP7 - we've had need to do some rapid benchmarking and diagnostics. To this end, I've made a couple of tools which might be useful for the wider community - python ports of ncview and CMAT. /thread/
Hi everyone, gridded data for the flat10MIP project is now open and public on the Norwegian Research Data Archive. Research using these data for understanding carbon-climate feedbacks, including climate commitment and reversibility is super relevant for AR7-WG1. archive.sigma2.no/dataset/flat...
Sigma2 Data Catalogue
Sigma2 Data Catalogue
archive.sigma2.no
So... now we can breathe again. Let's talk about ScenarioMIP. The final version is now up on GMD - and there's some changes since the first draft. /THREAD/ gmd.copernicus.org/articles/19/...
The Scenario Model Intercomparison Project for CMIP7 (ScenarioMIP-CMIP7)
Abstract. Scenarios serve as a critical tool in climate change analysis, enabling the exploration of future evolution of the climate system, climate impacts, and the human system (including mitigation...
gmd.copernicus.org
This is a horrifying threat of genocidal war crimes. The lives of civilians and service members alike are at stake here. Congress must stop this war and remove Trump from the White House.
Final version now online: gmd.copernicus.org/articles/19/...
The Scenario Model Intercomparison Project for CMIP7 (ScenarioMIP-CMIP7)
Abstract. Scenarios serve as a critical tool in climate change analysis, enabling the exploration of future evolution of the climate system, climate impacts, and the human system (including mitigation...
gmd.copernicus.org
Ben Bond-Lamberty@benbondlamberty.bsky.social · 2y agoThe Scenario Model Intercomparison Project for CMIP7 (ScenarioMIP-CMIP7) egusphere.copernicus.org/preprints/20...
The enlightenment realised. Simultaneously futuristic and ancient, the Mesa lab is a building from an alternative timeline, one where we built monuments to science rather than gods or money or power. It betrays scale - with no relatable features on the outside, it merges with the mountain.
Kevin Elliott@kjephd.bsky.social · 5mo agoPlans proceed to dismantle one of the world's great centers for the study of climate change www.nytimes.com/2026/03/13/c...
One reason LLMs are a limited way of understanding the world is because the world is only partly defined in terms of texts. - As an autistic person I am constantly confronted by how text and speech are incredibly unreliable guides to navigate the world.
4-year fully funded PhD position in 'Climate-related health impacts on children' @hydr-vub.bsky.social. Apply now: jobs.vub.be/job/Elsene-P...
Here's we are, inconsiderately consuming food to support our inefficient biological neural networks “it also takes a lot of energy to train a human ... It takes about 20 years of life – and all the food you consume during that time –before you become smart.” www.theguardian.com/technology/2...
Sam Altman defends AI’s energy toll by saying it also takes a lot to ‘train a human’
OpenAI CEO also downplayed concerns about how much water datacenters require at AI summit in India
theguardian.com
Kid this evening: "Why do people talk about "the 90s" so much, that's like, a date in the future"
The science is, apparently, fine. We just decided it's beyond our remit to "protect" the "environment"
Bob Kopp@bobkopp.net · 6mo agoAs expected, in the final rule, EPA's Endangerment Finding repeal backs down entirely from challenging the science, choosing to focus on statutory arguments regarding EPA's authority. Good work, everyone who contributed to the @andrewdessler.com review!
The federal government is setting itself up to be on the wrong end of the biggest lawsuit in history.
Dr. Aaron Thierry@thierryaaron.bsky.social · 6mo agoYou can repeal an endangerment finding. You can’t repeal the endangerment.
Next time someone asks you about energy and land use, maybe remind them that the ~35 million acres that currently grow corn for ethanol in the US could produce ~15 PWh per year of electricity from solar photovoltaics. That's ~3.5 times more than *total annual generation from all US power plants*.
The Methane spike in the early 2020’s has been explained in two new studies. A combination of weakened atmospheric removal and increased emissions from warming wetlands, rivers, lakes, and agricultural land are to blame. www.science.org/doi/10.1126/... www.science.org/doi/10.1126/... #methane
Why methane surged in the atmosphere during the early 2020s
The atmospheric methane (CH4) growth rate surged after 2019, peaking at 16.2 parts per billion per year (ppb year−1) in 2020 before declining to 8.6 ppb year−1 in 2023. Using multiple atmospheric inve...
science.org
The Trump #climate report attempting to overturn the ruling that greenhouse gases are pollutants was grossly scientifically inaccurate. Turns out it was also illegal. #climatechange www.nytimes.com/2026/01/30/c...
A Secret Panel to Question Climate Science Was Unlawful, Judge Rules
nytimes.com
"For Claude Code, about 90% of its code is written by Claude Code itself." No judgement. But where the hell are we headed? fortune.com/2026/01/29/1...
Top engineers at Anthropic, OpenAI say AI now writes 100% of their code—with big implications for the future of software development jobs | Fortune
AI coding tools are getting more sophisticated. But if coders stop coding, what happens to software development jobs?
fortune.com
