The DIAMOND project has just released a new series of Technical Briefs showcasing the open & fully accessible modelling suite: GCAM-Europe, OMNIA, CLEWS-EU, GEMINI-E3 EU, NEMESIS-World, & OPEN-PROM. climate-diamond.eu/communicatio...
Glen Peters
@glenpeters.bsky.social
Energy, emissions, & climate CICERO Center for International Climate Research, Oslo, Norway https://cicero.oslo.no/en/employees/glen-peters
"The upper limit of iron fertilization ... correspond[s] to a net annual drawdown rate of 0.14–0.70 Gt CO2/yr" (we emit around 40GtCO2/yr). Plus, significant uncertainty, trade-offs, and difficult to verify. Perhaps we could just reduce CO2 emissions by an extra 1-2%?
David Ho@davidho.bsky.social · 7d agoA modeling study spanning 60 years of ocean iron fertilization across 10 ocean biomes reveals stark trade-offs in its use as a CO₂ removal technique. 🌊🧪
Reading this article by @mliebreich.bsky.social, & listening to the podcast, there are a few things left unsaid which I think is worth making explicit... A little thread on my pet peeves... mliebreich.substack.com/p/to-drill-o... 1/
To drill or not to drill? Lessons from Norway
In the UK, debate is raging about opening up the North Sea to oil and gas drilling. The latest episode of Cleaning Up with Anders Opedal, CEO of Norway's Equinor, contains important lessons.
mliebreich.substack.com
Which model to use? Different model, different results! "We identify some important differences in the scope, data, and assumptions in the two model types that lead to noticeably diverging results." www.tandfonline.com/doi/full/10....
Comparing the model traditions of energy economics and energy technology: the case of Norwegian energy-efficiency policies
When considering the introduction of energy and climate policies, numerical model analyses are useful tools. Bottom-up energy-system models and top-down general equilibrium models originate from di...
tandfonline.com
It looks like 2026-2027 will have a pretty impressive El Niño, which would imply a pretty impressive atmospheric increase in carbon dioxide and temperature. www.nature.com/articles/d41... 1/
The low share of households with air conditioning in Europe is really quite something. Not sure this is just explained by summer temperatures alone? (which seems to be a few degrees lower in Europe). www.iea.org/commentaries...
🔥More natural gas was flared globally in 2025 than was exported through the Strait of Hormuz. Flaring means the gas is combusted just to get rid of it.
Global gas flaring rises again in 2025: World Bank | Latest Market News
Hydrocarbon producers flared more gas than a year earlier for the third consecutive year, despite pledges from countries representing the majority of flared gas to eliminate routine flaring by 2030.
argusmedia.com
Imagine if hundreds of people died in hurricane or floods smashing through Europe Heatwaves have already killed that many ppl. They are a silent killer in that they dont generate outrage or fear. Hope this by @economist.com helps save lives as Europeans wake up to danger bsky.app/profile/eate...
Oliver Morton, Eater of Sun@eaterofsun.bsky.social · last mo.My round up of @economist.com's heatwave coverage (gift link) www.economist.com/europe/2026/...
On average, global ocean temperatures right now are the hottest in our historical records for this time of year! Follow along at zacklabe.com/climate-chan... 🌊
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/
It is not looking good for the costs of nuclear fusion, particularly in comparison to solar with batteries. Oh, wait, we still need to get one to work yet... (though, interesting discussion on whether it is worth government investment) www.nature.com/articles/s41... (reposting, wrong link)
Nice explainer, though article is behind a paywall. 'Tipping Point' is a very ambiguous term. It is hard to define mathematically (concepts like stability or multiple equilibria are used). Though, 'Tipping Point' is an easy & catchy term, therefore used & abused!
Rishika Pardikar@rishpardikar.bsky.social · last mo.At Bonn climate talks, India urged "care and clarity" (as per ENB) in how the term 'tipping points' is used. European Union muddied the waters by raising concerns about misinformation. Tried unpacking the science of tipping points, what we know and what we do not www.thehindu.com/sci-tech/ene...
The current debate about air con is about as silly as Nordhaus' saying most of the American economy will not be affected by global warming because it happens indoors. But at least Nordhaus had the excuse of writing 35 years ago when we had much less lived experience of a warming climate.
Renewables have been growing strongly in India, and at the end of May the total installed capacity of variable renewables (excludes large hydro) reached 230.8 GW, surpassing for the first time ever the installed capacity of coal (230.1 GW). This is a significant milestone. With caveats... 🧵
The largest solar contribution so far in India was on 3 March 2026 in the period 13:30-13:45 at 39.0%.
Just because emissions are growing, does not mean developing countries are not making progress! In electricity generation, India has over 50% non-fossil capacity & nearly 30% non-fossil generation. www.ecpulse.in/snapshots/ju... 1/
When reality surpasses fiction! Top: fictional forecast for August 2050, broadcast by French TV in 2014 to warn about the consequences of global warming. Bottom: Real French forecast for yesterday, June 22, 2026.
A journey from 5°C to 2°C... 11 years ago I gave a presentation on what it takes to keep temperatures below 2°C, and some of the key challenges. These challenges still exist, but we have lost 10 years... www.youtube.com/watch?v=529O... 1/
A journey from 5°C to 2°C w/ Glen Peters, CICERO
YouTube video by CICERO klima
youtube.com
This article explores India’s energy developments at local, national, & international levels, providing examples & lessons-learned to highlight progress, opportunities, & challenges for leadership. academic.oup.com/ooenergy/art...
Model-based studies often reflect Global North narratives in scenario databases, assume persistent inequalities, obscure ethical or normative choices behind justice, & fail to systematically include stakeholders & scientists from the Global South. www.sciencedirect.com/science/arti...
The challenge with climate-energy-economy models in constructing fair and equitable climate futures
Climate change and policy are unevenly experienced across nations, social groups, households, sectors, and generations. Understanding how benefits and…
sciencedirect.com
📢A milestone in India is reached: At the end of May, the total renewables generation *capacity* (excluding large hydro) passed that of coal (including lignite) for the first time. This is important, but it's also important to remember that about 70% of India's *generation* is still from coal.
Observed warming for the 2016–2025 decade was 1.26°C, of which 1.24°C was human-induced, relative to 1850–1900. Human-induced warming reached 1.37°C in 2025, increasing at a rate of 0.27°C per decade. essd.copernicus.org/articles/18/...
Global Greenhouse Gas (GHG) emissions continue to grow, across all GHGs (CO2, CH4, N2O, F-gas). The only glimmer of light is that CO2 emissions from LUC have declined in the last decade, though with a lot of annual variability. essd.copernicus.org/articles/18/...
The Paris Agreement is about "well below 2C" & pursuing 1.5C, it is not about avoiding 4-5C. This is somewhat lost in the RCP8.5 debate. The science said keep well below 2C, & RCP8.5 is not needed to make that case. Other scenarios were. www.theguardian.com/environment/...
When is rare good news on climate science actually bad? When News Corp misrepresents it | Temperature Check
The worst-case scenario for a high-emissions scenario has been revised downward – but the best-case option is now implausible
theguardian.com
A good summary of some of the challenges with using AI in climate. There are important distinctions between modelling & emulation, & trade-offs with cost (computational time), that too few people discuss & understand. @sjonearth.bsky.social arstechnica.com/science/2026...
The weather and climate science AI revolution isn’t revolutionary
Machine learning has its limits—how is it being used?
arstechnica.com
Block you calendars... 21-25 June 2027, Exeter, UK The 12th International Carbon Dioxide Conference Follow along for updates icdc12.org
