Why are objectives and targets so important for climate policy development, but not for nature protection? Why are public-private partnerships more important for nature protection than for climate policy? Find answers to these questions+more in this chapter on Norwegian environmental policy.

📢 New book chapter 👥 Elin Lerum Boasson @elinlb.bsky.social (ISV) & Lars H. Gulbrandsen 🔎 Paradoxes of Twin Crises: Nature Protection and Climate Governance in Norway 📖 Published in Oxford Handbook of Norwegian Politics 🔗 doi.org/10.1093/oxfo...

I mean, just look at it. It's a towering physical monument to the persuit of better understanding the science of the Earth. Generations of young climate scientists from across the world have been mentored in its sandstone walls. The symbolism of this attack on free science is unparalleled.

That the NCAR Mesa lab is beautiful is no accident. Assigning a beautiful place and building to the important task of understanding our planet speaks of a society that values both this undertaking, and the people who do it. To take that away is emblematic of attempts to undermine this status. 1/2

Reposting this, to remind us that climate and weather models do not make themselves...

An update of the Global Hydrogen Budget. The biggest source of H2 into the atmosphere is oxidation of CH4 and NMVOCs. So if you care about the climate effects of H2, reduce your CH4 emissions... www.nature.com/articles/s41... 1/

Dismantling of US climate science will lead to human suffering of major proportions. Wathing it play out is painful, but much more severe pain is going to follow.

Friends at NCAR, we're with you. @ncar-ucar.bsky.social is a trailblazer in community modelling driven not by idealogy, but by open science. We share all our code, thoughts, ideas. These can't be shut down. We'll fight and find every mechanism to support the ongoing CESM community.

Policy works. How do we know? Because emissions go up when the policy is removed (transport in this case). [Noting, biofuels are allocated zero emissions in GHG emission reporting, on the assumption emissions are captured in LULUCF]

Sweden's greenhouse gas emissions increased by 7.4% in 2024, largely a result of a dramatic reduction in the use of biofuels in road transport. Emissions in the "domestic transport" sector were up 21%.

IEA's annual coal report. There are a bunch of different factors in play, making it a non-trivial exercise (as always) to forecast which way global coal consumption will go in the coming years.

The beautiful idea of NCAR, to improve understanding of our planet through a cooperative, shared and open intellectual team effort, is literally what has got me out of bed every morning for nearly two decades. This cannot, CANNOT be allowed to happen. eu.usatoday.com/story/news/p...

"It targets low- and middle-income households living in 177 rural municipalities and 433 areas with limited public transport. Furthermore, households applying for the scheme must not already own or lease a battery-electric vehicle." Funding mainly "from the upcoming emissions trading system ETS2."

While China's exports continue to grow, the domestic economy is "feeble". Investment in infrastructure saw a "rare decline". Signals that the government might push infrastructure investment up again point to why it is dangerous to call a peak in China's emissions just yet.

Two recent pieces about India's air pollution. First an opinion piece by Anurag Minus Verma. "Many Indians wrongly believe they can somehow build immunity to illness just by inhaling this [polluted] air." 🎁🔗

A new paper in @nature.com led by Jeff Chambers, finds evidence of climatic mortality thresholds combining heat and drought, & explores the emergence of 'hypertropical' climates in future climates. Amazing multi-decadal effort by the field teams involved 👏 www.nature.com/articles/s41...

I am preparing my new-years resolutions, and I have an idea for the climate crowd: Stop sloppy climate language! Restrict the use of the term «acceleration» to what should happen to emissions reductions, and stop using it for all things related to climate mitigation. @glenpeters.bsky.social

En ny spesialrapport vil gi kunnskap om hvordan byer kan tilpasse seg klimaendringene. Forskere sier at nå gjelder det å tenke nytt, og ikke gjenta gamle feil. Men det haster.

Månedens figur av @cicero.oslo.no - kjekt å vite!

We're underway! Attendees at the #Equinox Workshop 'Societal transformation in the face of climate change' & Equinox Dialogue 'Modelling economics of climate change' have been welcomed to @belspo.be in Brussels by our VC Frank McGovern & @cicero.oslo.no's & @ipcc.bsky.social's Jan Fuglestvedt

Bompenger og et forbedret buss- og sykkeltilbud har gitt positive effekter i Tromsø. Tiltakene bidrar til mer miljøvennlige reisevaner og følger målene i byvekstavtalen.

China's exports of "new energy" passenger vehicles (BEV+PHEV) have increased 82.6% in Jan-Nov compared to the same period last year.

Dersom vi skal få flere elektriske vare- og lastebiler på veiene holder ikke nasjonale virkemidler - byer og kommuner må selv ta grep. Og Oslo er godt i gang.

The NorESM community will (also!) be running a tutorial in January 14-16th, in Bergen, Oslo and online (for those who prefer their ESM tutorials in an Euro-timezone!). It is focused on NorESM2.3 but the workflow will be similar for the (in development) NorESM3. docs.google.com/forms/d/e/1F...

Working with Brazilian and Chinese scientists, BYD has launched a flexi-fuel hybrid for the Brazilian market. Electric plus any mix of gasoline and ethanol.

OMG. 10,000-15,000 ppm sulphur in Iran's diesel. In Europe it's 10 ppm. In the US it's 15 ppm. In India it's 10 ppm. In China it's 10 ppm.

I missed this big news from India last month. The power regulator of Rajasthan, one of the states leading the solar charge, has blocked permitting of a coal-fired power plant. Plenty of solar, nuclear and batteries on the way, and permitting coal could lock in costly long-term contracts.

Do you have some kids that want to learn about climate change? Or perhaps you want to learn some more, but in a more accessible language? Then check out this Special Collection... kids.frontiersin.org/collections/... 1/

I am settled on the 32st floor with a view of Paris (and EDF) and well prepared for one week of climate science discussions, kicking of the 7th assessment cycle of the @IPCC A nice run in the sunset gave me a head start!

#COP30 i Belem: Et museskritt vekk fra fossilt Selv om COP30 ikke klarte å levere økte og bredere ambisjoner for utslippskutt, er det noe å glede seg over.

The Nepalese EV transition. In simple terms, brown on this graph is India's share and blue is China's share. The trigger? India effectively halted all imports of petroleum into Nepal in 2015, an "undeclared blockade", which was "masked as constitutional concern". robbieandrew.github.io/carsales/

Anders Opedal (CEO of Equinor) said something wrong here. He said that the IEA said no need for new oil and gas before, now they say more oil and gas needed. This is wrong. The no new oil and gas is if demand drops in line with 1.5C, and always has been. 1/

EU with 19% BEV in October, 16% this year. robbieandrew.github.io/carsales/

#cop30 decision's "recalling with concern" that "historical cumulative net carbon dioxide emissions account for at least four fifths of the total carbon budget for a 50% probability of limiting global warming to 1.5C" was true *in 2019*. It's now 94%, best guess. /1 unfccc.int/sites/defaul...

Now that we are likely to cross 1.5°C, there is increasing discussion on "overshoot". There is a lot of uncertainties on overshoot, but there is one thing that we are 100% sure about: GHG emissions need to go down >90% in decades for overshoot to be a reality. www.swp-berlin.org/publikation/...

hats-off to the small-but-mighty NorESM team, who have conceived of, planned, constructed, submitted and analyzed a multi-stage coupled PPE ("perturbed physics ensemble") -including every model component- in about two weeks flat. Some A-grade technical prowess/collaborative skillz going on over here

Where are global CO2 emissions heading? Middle-of-the-road? But just because we have followed the SSP2-45, SSP4-60 path for 10 years, does not mean we follow it for the next 70 years. Policy & technology have pushed the world away from the high-end, but 2.7C in 2100 & rising is not a good outcome!

The atmospheric increase of CH4 has returned to "normal" levels in the last couple of years, after big increases in 2020-2022. The 2020-2022 increases were likely anomalies (COVID, weather), and not a change in trend. gml.noaa.gov/ccgg/trends_...

An interesting snippet of information... Electricity generation from coal in India has dropped in the first 10 months of 2025, with renewables covering for all the growth in electricity use. Noting, growth in electricity use is rather low... More figures: robbieandrew.github.io/india/

"He's an expert on oceans, she's an expert on land processes, those two specialize in the atmosphere," Aas explains. Each week, they gather digitally to discuss the globe—or more precisely, a representation of it. Together, they're developing a climate model.

Global CO2 emissions are showing signs of levelling, thanks to a slight decline in net land-use change emissions offsetting continued growth in fossil emissions. The trends are way off compared to the 1.5C scenarios with no or low overshoot assessed in the IPCC. Details: bsky.app/profile/glen...

Where we are in terms of achieving Paris Agreement temperature goals, where we need to go, and how to get there. Interview with @rishpardikar.bsky.social drilled.media/news/cop30-g...

The International Energy Agency (IEA) got plenty of critique for bringing back the Current Policies Scenario (CPS). I think it was a good idea to bring back. Let me explain why... 1/

It was great to visit @cicero.oslo.no where I presented and discussed my work on coalitions in EU environmental policy processes to the climate policy group! Thank you to Merethe Dotterud Leiren for the invitation! #PhD #EU #environmentpolicy #coalitions

My fear is scientists will just sit by & be complicit. Saying you are for 1.5C or net zero is not ambition. If rich country GHG or CO2 emissions are not dropping at >5% per year, they are not remotely consistent with 1.5C, nor net zero in a reasonable time frame. Scientists need to point this out.

I've added a dropdown with a bunch of explanatory notes that might be helpful and/or interesting for folks checking out the data on my "car sales" page. robbieandrew.github.io/carsales/

"Women who face long-term heat exposure in workplaces and homes are finding it takes a heavy toll on their health and income." 🎁🔗

If CO2 emissions go to zero in 2050 (top), the sinks (green) will bring atmospheric CO2 back down (middle), & temperature will stabalise at ~1.7°C (bottom). Going to zero today will keep us <1.5°C Constant emissions leads to 2.6°C, rising rapidly thereafter. www.nature.com/articles/s41...

The thing that amazes me most about this figure is not the progress that we made from the blue line "where we were going", but that everyone seems to be having heart failure that the IEA made a scenario where emissions are flat, instead of falling 20% in 25 years... www.axios.com/2025/11/13/c...