Xavier Domene

@xdomene.bsky.social

CREAF-Autonomous University of Barcelona Soil science and ecology, ecotoxicology, and biochar

Més consells, de la terreta al món: - Aigua (barrejada amb coses) - Barret de palla - Roba ampla i lleugera - Menjar fred - No votar a partits que neguen l'escalfament global que ha provocat el 2025 més de 25.000 morts en onades de calor a Europa, dels quals un 65% són imputables al canvi climàtic.

A new paper shows that less than 2 months of exposure to Twitter’s algorithmic feed significantly shifts people’s political views to the right. Moving from chronological feed to the algorithmic feed also increases engagement. This is one of the most concerning papers I’ve read in awhile.

The political effects of X's feed algorithm
https://doi.org/10.1038/s41586-026-10098-2
Received: 16 December 2024
Accepted: 4 January 2026
Published online: 18 February 2026
Open access
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Germain Gauthier,5, Roland Hodler?5, Philine Widmer35 & Ekaterina Zhuravskaya3,4,5 m
Feed algorithms are widely suspected to influence political attitudes. However, previous evidence from switching off the algorithm on Meta platforms found no political effects'. Here we present results from a 2023 field experiment on Elon Musk's platform X shedding light on this puzzle. We assigned active US-based users randomly to either an algorithmic or a chronological feed for 7 weeks, measuring political attitudes and online behaviour. Switching from a chronological to an algorithmic feed increased engagement and shifted political opinion towards more conservative positions, particularly regarding policy priorities, perceptions of criminal investigations into Donald Trump and views on the war in Ukraine. In contrast, switching from the algorithmic to the chronological feed had no comparable effects.
Neither switching the algorithm on nor switching it off significantly affected affective polarization or self-reported partisanship. To investigate the mechanism, we analysed users' feed content and behaviour. We found that the algorithm promotes conservative content and demotes posts by traditional media. Exposure to algorithmic content leads users to follow conservative political activist accounts, which they continue to follow even after switching off the algorithm, helping explain the asymmetry in effects. These results suggest that initial exposure to X's algorithm has persistent effects on users' current political attitudes and account-following behaviour, even in the absence of a detectable effect on partisanship.

Data from long-term experiments in Finnish peatlands shows that warming induces a metabolic response in boreal Sphagnum peatlands that enhances accumulation of soil carbon, in contrast to the carbon losses in response to warming in boreal forests and tundra 🧪 www.nature.com/articles/s41...

Warming enhances soil carbon accumulation in boreal Sphagnum peatlands - Nature Ecology & Evolution

Data from long-term experiments in Finnish peatlands shows that warming induces a metabolic response in boreal Sphagnum peatlands that enhances accumulation of soil carbon, in contrast to the carbon l...

nature.com

Sospecho que los colémbolos se suben a las flores cercanas al suelo para comer polen mas a menudo de lo que solemos imaginar. Los vemos poco porque son diminutos. Este Sminthurus cf. viridis se estaba dando un buen atracón de polen de Calendula arvensis cogiéndolo directamente de las anteras.

Diminuto colémbolo de colores ocres sobre una caléndula amarilla

Open Letter by scientists to the Council: "Climate Neutrality Is Europe’s Greatest Economic Opportunity”. Ahead of the European Council meeting on 23.10.2025, 2,178 scientists urge EU Heads of States & Governments to take ambitious decisions for the 2040 targets. zenodo.org/records/1739...

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3/ Scientists now believe this rules out lower #climate sensitivity estimates Which "means that increasing concentrations of atmospheric greenhouse gases likely will cause even more warming than most current models predict." Our carbon budgets are smaller. Meeting the Paris goals is harder.

Observed trend in Earth energy imbalance may provide a constraint for low climate sensitivity models

Climate forcings by greenhouse gases and aerosols cause an imbalance at the top of the atmosphere between the net incoming solar radiation and outgoing longwave radiation from Earth. This Earth energy...

science.org

𝐖𝐞𝐛𝐢𝐧𝐚𝐫 “𝐒𝐮𝐞𝐥𝐨𝐬 𝐲 𝐛𝐢𝐨𝐭𝐚 𝐞𝐝á𝐟𝐢𝐜𝐚: 𝐀𝐩𝐫𝐨𝐱𝐢𝐦𝐚𝐜𝐢𝐨𝐧𝐞𝐬 𝐭𝐚𝐱𝐨𝐧ó𝐦𝐢𝐜𝐚𝐬, 𝐟𝐞𝐧𝐨𝐭í𝐩𝐢𝐜𝐚𝐬 𝐲 𝐦𝐨𝐥𝐞𝐜𝐮𝐥𝐚𝐫𝐞𝐬” Lunes 𝟐𝟒 𝐝𝐞 𝐦𝐚𝐫𝐳𝐨 𝐝𝐞 𝟐𝟎𝟐𝟓 𝐝𝐞 𝟏𝟎:𝟎𝟎-𝟏𝟐:𝟑𝟎 𝐡. ¡Sin inscripción! 𝐏𝐫𝐞𝐬𝐞𝐧𝐜𝐢𝐚𝐥: Sala de Grados I, Facultad de Ciencias y Biociencias UAB 𝐎𝐧𝐥𝐢𝐧𝐞: teams.microsoft.com/l/meetup-joi...

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Instead of listing my publications, as the year draws to an end, I want to shine the spotlight on the commonplace assumption that productivity must always increase. Good research is disruptive and thinking time is central to high quality scholarship and necessary for disruptive research.

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