Back in 2020, I wrote a big paper that explained why different datasets of global fossil CO₂ emissions gave different numbers.
📢Now @wflamb.bsky.social has hand-picked a crowd of experts and gone much further: "Differences in anthropogenic greenhouse gas emissions estimates explained", out today.
We have a pretty good understanding of the differences between GHG emission estimates, but when it comes to some sectors (e.g., land), estimates seem all over the place!
Why is this? @wflamb.bsky.social has you covered...
essd.copernicus.org/articles/18/...
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🧵 New report just dropped 🚨 "Fractured Reality: How Democracy Can Win the Global Struggle Over the Information Space" — from the EU Joint Research Centre, led by Mario Scharfbillig and I. A landmark read for anyone working on disinformation, platforms & democracy. 👇
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“We can’t be shrinking away from this space,” say the scientists combating misinformation by taking strategies from the influencer playbook.
Good feature on what's involved in getting very online by @catrionaclarke.bsky.social @nature.com www.nature.com/articles/d41...
Number of UK newspaper editorials arguing for more (blue) and less (red) climate action, 2011-2025. Some editorials also present a “balanced” view, which is categorised as advocating for neither “more” nor “less” climate action. These editorials are not represented in this chart. Source: Carbon Brief analysis.
NEW – Analysis: UK newspaper editorial opposition to climate action overtakes support for first time | @joshgabbatiss.bsky.social @sylviahayes.bsky.social
Read here: buff.ly/eAPkvkx
PIK at #IPCC: Nine PIK scientists joined the first Lead Authors’ Meeting for the 7th Assessment Report on the state of climate science in Paris last week. The meeting marked the start of drafting the 3 Working Group reports: www.pik-potsdam.de/en/news/late... @ipcc.bsky.social @wflamb.bsky.social
I think one line of evidence for this is the scale of backlash that fossil interests have mobilised against existing and working climate policies - and what happens to renewables, counterfactual emissions, etc. when they get shutdown!
It's funny to have to make this case but tbqh we don't make it enough: human efforts to counter fossil fuel use have had *at least some* effect on total greenhouse gas emissions since the signing of the Paris Agreement in 2015, and there's some evidence to back up this position
A lil thread 🧵
Fixed, thanks. I guess firefox doesn't like svgs :(
Might be best to just exclude it from this figure next time and save writing A LOT of explanatory/hedging text that then gets lost!
Illustration of a dart missing the bullseye on a colorful target, symbolizing global temperature goals at risk due to inaction.
New national climate plans have barely moved the needle on limiting global warming. Yet there is hope.
According to UNEP's latest #EmissionsGap Report, accelerated adoption of renewable energy and falling costs mean we have the tools to cut emissions now: www.unep.org/news-and-sto...
thanks - very useful!
Expertise from the Potsdam Institute.
8 Lead Authors for @IPCC_CH #AR7:
nico bauer
Niklas Boers
Franziska Piontek
Iulii Didovets
Barbora Sedova
@wflamb.bsky.social
Jan Minx
Elmar Kriegler
First Lead Author meeting Dec 2025, report out 2028/29.
www.pik-potsdam.de/en/news/late...
bar chart showing deaths associate with extreme heat with and without climate change in 12 European cities
About 1500 of the approx. 2300 people that will have lost their lives across 12 European cities last week would still live, if it wasn't for our burning of oil, coal and gas. If we care about the right to life, we need to stop burning fossil fuels. www.imperial.ac.uk/grantham/pub...
Out today: Freedom for Capital not People: The Mont Pèlerin Society and the Origins of the Neoliberal Monetary Order @versobooks.bsky.social
Höhepunkt der Emissionen noch nicht erreicht - Tagesschau Online berichtet über Report „Indikatoren des globalen Klimawandels“. Es werde immer schwieriger, die 1,5 Grad noch zu halten, je länger Emissionen nicht reduziert würden, so PIK Forscher @wflamb.bsky.social
www.tagesschau.de/wissen/klima...
😆oops
And Thailand
Some impressively complete data from Nepal in the latest version
Just did a small update of Tidy GHG Inventories: lambwf.github.io/Tidy-GHG-Inv...
81 countries have now submitted inventory data with their Biennial Transparency Reports. Quite a few still haven't (its 6 months past the deadline btw).
Having said that, including LULUCF in total emissions only changes the recent trend in a few isolated cases (top left, bottom right).
But we can probably expect to see more European countries enter the "slower reductions" zone as natural disturbances cut into the land sink.
A dot plot comparing the change in national GHG emissions over the past 5 years with (x axis) and without (y axis) the LULUCF sector
The land use change (LULUCF) sector is pretty confusing, since it can be a source of emissions (deforestation, disturbances) as well as a source of removals (regrowth, management).
Including LULUCF can speed up, slow down, or change the overall dynamic of economy-wide emissions.
Quite possibly the biggest climate story of the year (especially when we look back on this in a few years' time)
For the first time on record, China's emissions are falling due to clean energy growth, not slow power demand...
Will Lamb @wflamb.bsky.social has pulled the troops together & submitted an article to explain why different datasets can give different estimates of GHG emissions.
My favourite: differences in accounting for fire emissions.
Article in review, please comment!
essd.copernicus.org/preprints/es...
New preprint: differences in anthropogenic greenhouse gas emissions explained essd.copernicus.org/preprints/es...
Greenhouse gas emissions are still mostly from fossil fuels by the way!!
lambwf.github.io/UNEP-Gap-Rep...
The EU has released its latest GHG emission inventory, with data up to 2023.
The good news, GHG emissions continue a downward trend, currently 37% below 1990 levels.
The bad news, a significant downward revision of land-use removals (LULUCF).
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I tried
