Senior Science Editor at @CarbonBrief with a fondness for baking and Arsenal FC. All opinions are my own, however dull they might be.

Probably on a train
Still kind of reeling from this… 😳
.@CarbonBrief has compiled data from 70+ peer-reviewed climate studies to show how #climatechange is projected to affect the world by regions. Check out the interactive summary here: interactive.carbonbrief.org/…
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Robert McSweeney retweeted
That popular graph suggesting Europe has actually had a good year for wildfires is misleading - data encompass Russia, including Siberia - can include fires deliberately lit to manage cropland - area burned by wildfires across EU is second only to 2022 carbonbrief.org/factcheck-no…
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Robert McSweeney retweeted
NEW – Factcheck: No, Europe is not having its ‘quietest’ year for wildfires ✍️ @GAViglione and @rtmcswee Read here: buff.ly/pDQGTR3
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Robert McSweeney retweeted
NEW – Factcheck: No, Europe’s heatwaves are not being ‘caused’ by declining air pollution ✍️ written by @rtmcswee 💬 with comments from @bjornhs, @erichfischer and Pedro Roldan-Gomez Read here ➡️ buff.ly/ukIO2fI
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Robert McSweeney retweeted
The arc of the scenario universe is long, but it bends inevitably toward more realistic emissions. A new paper outlining the emissions scenarios we will be using in the upcoming IPCC AR7 report notes that "the CMIP6 high emission levels (quantified by SSP5-8.5) have become implausible".
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NEW: Have YOU seen these FALSE OR MISLEADING CLAIMS about the NORTH SEA? Find out more: carbonbrief.org/factcheck-ni…
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If you want to know more about how we established that there is a statistically significant increase in the speed of global warming since 2015, @CarbonBrief explains it nicely.
NEW – Pace of global warming has nearly doubled since 2015, reveals study ✍️ @AyeshaTandon Read here: buff.ly/60Q5TkL
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For such a softly spoken guy, Ben doesn't hold back on the Trump administration: "Insane. That’s the only word for it. Removing our ability to measure and monitor how the world around us is changing, makes no sense whatsoever."
NEW – Prof Ben Santer: Trump administration is ‘embracing ignorance’ on climate science | @rtmcswee Read here ⬇️ buff.ly/2lKP1CG
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Here's our annual look at the most talked-about climate papers of the previous year:
NEW – Analysis: The climate papers most featured in the media in 2025 | @rtmcswee @AyeshaTandon Read here: buff.ly/sF3cD1c
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Robert McSweeney retweeted
Are you a journalist covering COP30 looking for new and diverse sources? Check out the Global South Climate Database. This publicly available, searchable database features 1000+ climate scientists and experts from the global south. 🌍🔗 buff.ly/5bhfWeV
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Here's our annual look at COP delegates: Top story: no US delegation for the 1st time in COP history Also: ~56k people registered, so no big drop-off despite accommodation issues in Belém (Caveat: these are provisional figures) Also also: most "virtual" delegates ever #COP30
NEW – Analysis: Which countries have sent the most delegates to COP30? | @rtmcswee Ho Woo Nam Read here: buff.ly/I5pUBHu
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Robert McSweeney retweeted
In a UN speech today, President Trump said that "all of these [climate] predictions were wrong". Back in 2019 I led a research effort to digitize old climate model projections and assess how well they did. Turns out they got future warming pretty spot on!
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Robert McSweeney retweeted
Well this is embarrassing for "newspaper of record" The Times: Its coverage of EVs is the most misleading among UK titles, with 52% of pieces in H1 2024 containing at least one misleading statement (The Daily Telegraph "wins" on volume, with 44 misleading pieces) 1/4
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Robert McSweeney retweeted
The recent DOE climate science report misrepresents the work of many researchers. Carbon Brief asked those cited to review the parts of the report where their work was used, and we collectively found 100+ misleading or false statements: interactive.carbonbrief.org/…
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More net-zero misinformation in the @Telegraph It claims that a proposed scheme to put the cost of recycling onto packaging producers, rather than local councils, is a “net-zero glass tax”. It is about waste management, not net-zero. Somehow, this made it onto the frontpage 🤦
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And then @thetimes, revealing its credulity, has followed with its own piece that does exactly the same thing (just 2 hours later): thetimes.com/uk/environment/…
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Robert McSweeney retweeted
Chart: The rise, fall and rise of UK nuclear power over eight decades Written by @DrSimEvans. Data analysis by Ho Woo Nam. Visuals by @tomoprater. Read here ➡️ buff.ly/54FJd7w
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Robert McSweeney retweeted
NEW – Explainer: How human-caused aerosols are ‘masking’ global warming | @hausfath Read here: buff.ly/46ERb71
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Robert McSweeney retweeted
2025 had the second warmest first quarter (Jan-Mar) on record, just a hair behind last year (2024). This is remarkable since 2024 was boosted by a strong El Nino event, while 2025 started off in weak La Nina conditions.
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Robert McSweeney retweeted
My HORRIFYING cartoon for this week’s @GuardianBooks
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