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David Leclere 🇵🇸 🇺🇦

@dleclere.bsky.social
488 followers 1.7K following 7 posts

Researcher at @iiasa.ac.at || land use modeling | biodiversity | climate change || Views are my own

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Reposted by David Leclere 🇵🇸 🇺🇦
Palok Biswas @pbiswas.bsky.social · 01/07/2026
🎉 Our paper is out in Nature Portfolio npj Climate Action! 👉 📃 www.nature.com/articles/s44... 𝐊𝐞𝐲 𝐟𝐢𝐧𝐝𝐢𝐧𝐠: The choice of justice framing in climate models fundamentally determines both the global ambition for decarbonization and who bears its burden.
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Robert Finger @robertfinger.bsky.social · 12/09/2026
Einstein Colloquium on Science and Policy with Nathan Hendricks 'Collective Management of the Agricultural Landscape: Insights from Groundwater Management in the U.S. High Plains' 30.09., 12.15 - 13.15, at ETH Zürich or via Zoom einstein-school.ethz.ch/en/news/coll...
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Reposted by David Leclere 🇵🇸 🇺🇦
Jeroen van der Sluijs @jeroenvandersluijs.bsky.social · 08/08/2026
Ethics & Planetary Boundaries A multidisciplinary approach to the ethics of the planetary boundaries, ranging from international law to Indigenous knowledge and from science to art, and .. @simonmeisch.bsky.social @tankisandre.bsky.social @erleellis.bsky.social www.cambridge.org/core/books/e...
cambridge.org
Ethics and Planetary Boundaries
Cambridge Core - Ethics - Ethics and Planetary Boundaries
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Katie Matthews, PhD @katieocean.bsky.social · 05/08/2026
damn @mastroianni.bsky.social you say some thought provoking shit about why and how internal values >> public incentives highly recommend this read www.experimental-history.com/p/incentives...
experimental-history.com
Incentives are for losers
OR: you must look at this fish and go insane
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Sean Pang @seh-pang.bsky.social · 08/07/2026
Almost every European plant species is out of equilibrium. Climate change is only part of the story—disturbance greatly shapes where species actually occur. 🚨Our new paper 🌱in @natecoevo.nature.com analysed 3,047 species across >1.1M European vegetation plots. www.nature.com/articles/s41...
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Camille Perrin @perrincam.bsky.social · 19/06/2026
On July 1st, @ec.europa.eu will publish the EU LIvestock Strategy, i.e. its vision for the future of the EU animal farming sector. Looks like we should manage our expectations … 🙄 1/2 grilledmedia.substack.com/p/leak-eu-lo...
grilledmedia.substack.com
Leak: EU looks to change how livestock climate emissions are measured
The draft Sustainable Livestock Strategy also calls for 'flexibilities' on water pollution rules
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Thomas Piketty @thomaspiketty.bsky.social · 04/06/2026
What would it take to achieve high prosperity and equality while remaining within planetary boundaries? The World Inequality Lab is very excited to launch the #GlobalJusticeReport. [1/7]
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Manuel Bompard @mbompard.bsky.social · 23/05/2026
Les 10 jours où le RN a (encore) reculé sur les retraites. Une interview de Bardella qui met le feu au poudre, des cadres en perdition à la télévision, je vous explique comment le RN a préparé en quelques jours son ralliement à un recul de l'âge de départ à la retraite des travailleurs Français 👇
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Ross Floate @rossfloate.bsky.social · 08/05/2026
Oh my. This is spectacular. sinceyouarrived.world/taken
sinceyouarrived.world
taken.
A web page that tells you what your browser gave away the moment you arrived. No login, no form, no permission. Most pages do this. None of them tell you.
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Reposted by David Leclere 🇵🇸 🇺🇦
Luca Santini @lsantinieco.bsky.social · 25/04/2026
🚀 TetraDENSITY now has a dedicated web app! Explore the dataset interactively, filter by taxa 🐾, country 🌍 & more. Generate descriptive stats 📊 (overall or subsets), download data 💾 in seconds, and flag missing data or errors ⚠️ Dive in and have fun 🎉 andrewzamp.github.io/TetraDENSITY
andrewzamp.github.io
TetraDENSITY - A Global Database of Tetrapod Population Density Estimates
Official interactive explorer and publication page for TetraDENSITY, with global tetrapod population density data.
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Pauline Cervan @paulinecervan.bsky.social · 23/04/2026
« La France doit privilégier la protection des pollinisateurs plutôt que l’utilisation des pesticides. » Tel est le titre d’une lettre signée par 18 scientifiques français et publiée le 23 avril dans la revue Science. reporterre.net/Il-pleut-lit...
reporterre.net
« Il pleut littéralement des pesticides » : 18 scientifiques alertent sur les dangers de la loi Duplomb pour les pollinisateurs
Dans une tribune, 18 scientifiques appellent à protéger les pollinisateurs, menacés par les pesticides. À l'origine de cette initiative, Bertrand Schatz revient sur le fossé qui se creuse entre scienc...
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Glen Peters @glenpeters.bsky.social · 10/04/2026
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/... 1/
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Bertrand Bed'Hom @bedhom.bsky.social · 09/03/2026
Ecological and economic assessments of native vertebrate pest control in France "There is no evidence of any benefit from control effort." @cesco-lab.bsky.social @recherche.mnhn.fr www.sciencedirect.com/science/arti...
sciencedirect.com
Ecological and economic assessments of native vertebrate pest control in France
1.7 million foxes, mustelids and corvids are culled in France annually to reduce sanitary risks and economic losses to human activities and properties…
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Institute for European Environmental Policy (IEEP) @ieep.eu · 19/02/2026
Are @ec.europa.eu proposals for #CAP for the period 2028–2034 fit to drive the scale of environmental and climate action Europe now needs? Read our latest briefing to find out 👇
ieep.eu
Strengthening environmental ambition in the proposal for the CAP 2028–2034  - IEEP AISBL
This briefing evaluates whether the Commission’s proposals for the Common Agricultural Policy (CAP) for the period 2028–2034 are fit to drive the scale of environmental and climate action Europe now needs. Despite some positive steps, the proposed framework could ultimately undermine environmental ambition if key weaknesses in funding, governance and performance monitoring remain unresolved.  
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David Leclere 🇵🇸 🇺🇦 @dleclere.bsky.social · 14/02/2026
French government about to lead a request to demote UN rapporteur Francesca Albanese (whom they likely assess as not sufficiently comprising her duties, by not letting the government of Israel getting away with the genocide it commits), using fake news 🤮
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Dr Victoria J Burton @soilscholar.bsky.social · 11/02/2026
My paper with @andypurvisnhm.bsky.social @dralanjones.bsky.social et al. on our Earthworm Watch 🪱 #citizenscience project @nhm-london.bsky.social & @earthwatcheurope.bsky.social is out! We examined motivations of those who did, and importantly, those who didn't, take part doi.org/10.1186/s128...
doi.org
Who watches the worms? Motivation and (non-)participation in a contributory citizen science project - BMC Ecology and Evolution
BMC Ecology and Evolution - Citizen science projects rely on public participation to generate data and promote engagement with science. However, little is known about the motivations of individuals...
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Générations Futures @generationsfutures.fr · 05/02/2026
Omnibus 10: Une approbation illimitée pour 49 pesticides dangereux dont le glyphosate et l’acétamipride ? Générations Futures demande des clarifications à la Commission Européenne www.generations-futures.fr/actualites/o...
generations-futures.fr
Une approbation illimitée pour 49 pesticides dangereux dont le glyphosate et l’acétamipride ? Générations Futures demande des clarifications à la Commission Européenne - Générations Futures
Une approbation illimitée pour 49 pesticides dangereux dont le glyphosate et l’acétamipride ? Générations Futures demande des clarifications à la
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Estelle Ravel @estelle-ravel.bsky.social · 31/01/2026
Do agricultural diversification practices pay off in the long run? Our new paper synthesizes 100+ years of evidence showing that diversification practices become more profitable over time and delivers growing benefits for soils, biodiversity, and carbon. www.nature.com/articles/s41...
nature.com
Long-term agricultural diversification increases financial profitability, biodiversity, and ecosystem services: a second-order meta-analysis - Nature Communications
Feeding a growing population while protecting the environment is a major global challenge. This study suggests that agricultural diversification enhances long-term profitability, biodiversity, soil he...
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Alexander J. Stein @ajstein.bsky.social · 31/01/2026
The transition to alternatives to #meat & #dairy offers opportunities for farmers, e.g. the production of #legumes or the generation of revenue from payments for stewardship or provision of #ecosystem services. As the transition will be gradual… (1/2) doi.org/10.1016/j.la...
doi.org
Redirecting
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Jessica Blythe, PhD @jessicablythe.bsky.social · 28/01/2026
🌊 The global community has made ambitious commitments to advancing ocean equity – what is missing is a transparent & replicable way to measure equity and track progress 🐠 📢 Our new @nature.com paper, the #OceanEquityIndex, offers a simple yet robust solution: www.nature.com/articles/s41...
nature.com
The Ocean Equity Index - Nature
The Ocean Equity Index provides a systematic, twelve-criteria framework to assess and improve equity in ocean initiatives, projects and policies, producing structured data that guide evidence-bas...
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Timmons Roberts @timmonsroberts.bsky.social · 18/01/2026
There is much to be done, at all levels. www.nature.com/articles/s44...
nature.com
How scientists can contribute to the social movements essential to protecting climate and nature - npj Climate Action
Scientists have much to contribute to the growing social movements pushing for urgent and transformative change to address the climate and biodiversity crises. Depending on their skills, interests and...
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Bertrand Dumont @bdumontae.bsky.social · 08/01/2026
👋 Agroecology-TRANSECT YouTube channel www.youtube.com/@agroecology... provides material to learn on the agronomic, social and political dimensions of #agroecology Next webinar (Jan.22) is on #intercropping and sustainable #pest management To register 👉 www.agroecology-transect.net/events/boost...
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Camille Perrin @perrincam.bsky.social · 13/01/2026
“Les consommateurs, eux aussi, devront accepter de payer leur alimentation plus cher.” Un des tabous auxquels les politiques refusent de s’attaquer (et nécessitant des politiques sociales fortes pour ceux qui n’ont pas le luxe de pouvoir choisir leur alimentation). www.viridarium.fr/news/et-si-l...
viridarium.fr
Et si le vrai problème de l’agriculture n’était pas le Mercosur mais notre système agricole ? / Les Vergers d'Antan
Actualités Et si le vrai problème de l’agriculture n’était pas le Mercosur mais notre système agricole ? Les manifestations des syndicats agricoles contre le Mercosur sont légitimes sur plusieurs poin...
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Simon Evans @drsimevans.carbonbrief.org · 09/01/2026
NEW Q&A: What Trump’s US exit from UNFCCC and IPCC could mean for climate action * Is Trump's move legal? * How could US rejoin? * What does it mean for COP * What about emissions reporting? Answer in the piece, inc quotes from top legal / climate / emissions experts www.carbonbrief.org/...
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IPBES @ipbes.net · 08/01/2026
“We cannot withdraw from the fact that over 1 million species of plants and animals face extinction.” 🧪 IPBES remains committed to its mandate to provide the most credible science and evidence about biodiversity to all decision makers and actors. 🌍
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BEUC - The Consumer Voice @beuc.eu · 30/12/2025
The EU has rightly set the bar high with its Consumer Agenda. Consumers’ concerns & expectations need to be central to any policy plan to raise the trust levels in the market, create incentives to increase product quality, empower consumers with information, more choice, and more ⤵️
beuc.eu
European Commission unveils new five-year roadmap to improve consumer conditions in the EU
The European Commission unveiled its Consumer Agenda on 19 November 2025, a strategic roadmap to include consumer interests in all policy areas.
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George Monbiot @georgemonbiot.bsky.social · 20/12/2025
Thick as mince and thick as thieves. A column about the absolute idiots European legislators have made of themselves over the naming of food, at the behest of meat lobbyists. You laugh and then you weep. www.theguardian.com/commentisfre...
theguardian.com
When is a sausage not really a sausage? Ask the meat lobby | George Monbiot
European legislators may ban plant-based products from using the name to prevent ‘confusion’. Just don’t mention beef tomatoes or buffalo wings, says Guardian columnist George Monbiot
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IIASA @iiasa.ac.at · 19/12/2025
⚖️ IIASA hosted the 2025 INQUIMUS conference, which explored how justice considerations can be centered in climate risk management, & adaptation endeavors in research & practice. It highlighted that justice aspects need to be placed at the center of managing climate risks iiasa.ac.at/blog/dec-202...
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Dr Tom Harris @drtomharris.bsky.social · 30/11/2025
Africa’s forests have joined the Brazilian Amazon and Australian forests in becoming carbon sources rather than sinks. Around 2010 the previous storage of our carbon emissions flipped, mainly through deforestation and degradation. www.nature.com/articles/s41... #climatechange #deforestation #Africa
nature.com
Loss of tropical moist broadleaf forest has turned Africa’s forests from a carbon sink into a source - Scientific Reports
Africa’s forests and woody savannas have historically acted as a carbon sink, removing atmospheric carbon and storing it as biomass. However, our novel analysis reveals a critical transition from a ca...
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Andy Purvis @andypurvisnhm.bsky.social · 27/11/2025
Land-use change undermines the stability of avian functional diversity - new #OA @nature.com paper with @patrickawalkden.bsky.social @josephtobias.bsky.social, combining #PredictsProject with #Avonet doi.org/10.1038/s415...
doi.org
Land-use change undermines the stability of avian functional diversity - Nature
Large-scale analyses of bird species traits reveal that land-use change reduces resilience of key ecological functions more than previously thought.
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Tobias Plieninger @plieningerlab.bsky.social · 25/11/2025
Reconnecting people to nature is key for biodiversity action. Our new study identifies 5 ways people relate to #Natura2000: 🐾 Learning 🏞️ Heritage 🪴 Care 🧑‍🌾 Multifunctionality 👭 Collaboration Revealing such narratives can build new alliances & place PAs at the heart of society. doi.org/10.1002/pan3...
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Dana R. Fisher (aka the Apocalyptic Optimist) @fisherdanar.bsky.social · 15/11/2025
Since I've got a lot of new followers debating the incremental and failed policies of the climate regime and the COP process, here's a reminder to check out the #COPOut Podcast, which focuses on apocalyptically optimistic climate conversations cece.american.edu/cece-launche...
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IIASA @iiasa.ac.at · 07/11/2025
🌍 Interested in the 2026 IIASA Young Scientists Summer Program (YSSP)? Join our #YSSP26 Application Webinar for Europe & Asia to learn how to prepare a strong application and hear from alumni. 🗓 19 Nov 2025 | 1-2pm CET 📩 Register by 17 Nov: yssp.admin@iiasa.ac.at ▶️ iiasa.ac.at/early-career...
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Proceedings of the National Academy of Sciences @pnas.org · 01/11/2025
To truly protect #biodiversity, we must harness #PredictiveModels to reveal which #ConservationBiology strategies succeed—and which fail. Read the PNAS News Opinion: ow.ly/iVsF50Xl1BL #GlobalBiodiversityFramework #GBF #conservation
A herd of animals, featuring different species, moving together across an open plain.
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BioAgora project @bioagora.eu · 13/11/2025
BioAgora, together with sister projects @coop4cbd.eu & RESPIN, will co-organise a side event at #COP30 in Belém, Brazil 🇧🇷. 📅 Science-Policy for Biodiversity & Climate: Experiences from Europe, Latin America & Africa 📍 Blue Zone 🕓 16:45-18:15 (local time) Read more 👉 bioagora.eu/news/bioagor...
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Carbon Brief @carbonbrief.org · 04/11/2025
NEW – UNEP: New country climate plans ‘barely move needle’ on expected warming | @ayeshatandon.carbonbrief.org @ceciliakeating.carbonbrief.org @unep.org Read here: buff.ly/U0XaME9
Chart showing that greenhouse gas emissions remain far off track for the Paris Agreement goal. Historical and projected global emissions over 2015-35 under the current policy (dark blue), unconditional NDCs (mid blue), conditional NDCs (light blue), 2C (pink) and 1.5C (red) scenarios. There is a 66% chance that warming this century will remain below the levels shown on each of the pathways. Chart by Carbon Brief.
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Halley E. Froehlich @dochfroehlich.bsky.social · 29/10/2025
A recent Science Advances special issue focused on #aquaculture, but seemed to have missed the mark in a multitude of ways. My incredible colleagues and I wrote this sweeping Open Access opinion article (with 80 citations!) in response. Hope it's useful! 🐟 🦐 🎣 doi.org/10.1111/raq....
doi.org
No Free Lunch: Sustainable Aquaculture Requires Recognizing Past Science, Improvements, and Comparative Assessment
Aquaculture has become an established and important part of the global food system. Several critiques of aquaculture continue to resurface, seemingly ignoring past research and improvements of (1) aq....
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WWF EU @wwf.eu · 21/10/2025
The @ec.europa.eu’s move to “simplify” the EU Deforestation Regulation (EUDR) is a shameful surrender to political pressure. Forests are not bargaining chips🌳😬 See our full reaction➡️ www.wwf.eu?19703941/Eur... #Deforestation #Together4forests #ItsOurNature
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Mongabay @mongabay.com · 15/10/2025
Global deforestation hasn’t slowed in any significant way in the four years since 127 countries pledged to halt and reverse forest loss and degradation by 2030. The newly published 2025 Forest Declaration Assessment shows that nations are 63% off track from meeting their zero-deforestation target.
news.mongabay.com
Global goal of zero deforestation by 2030 is severely off track
Global deforestation hasn’t slowed in any significant way in the four years since 127 countries pledged to halt and reverse forest loss and degradation by 2030. The newly published 2025 Forest…
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c0nc0rdance @c0nc0rdance.bsky.social · 09/10/2025
The global whaling industry experienced a boom c. 1840-1950 as technology allowed whalers to hunt the Southern Ocean around Antarctica. Under standard models, we would have expected krill populations to have *exploded*. Instead, they DROPPED exponentially. Let's talk about the KRILL PARADOX.
Change in distribution and abundance of southern right whales. (A) Shows historical and contemporary wintering distributions (Figure 1 from Carroll et al., 2018), and (B) shows decline in abundance and subsequent recovery (solid line is the mean, dashed line shows upper and lower 95% CI). Modified Figure 1 from Jackson et al. (2008). Contemporary sightings are divided into regions where large aggregations are seen during winter: Argentina (ARG), Brazil (BZL), South Africa (SAF), southwest Australia (SWA), south central Australia (SCA), and New Zealand sub-Antarctic (NZSA) and regions where sightings are typically of small numbers of individuals per year. The large aggregations are IWC management units and correspond to historical whaling grounds, although another 5 whaling grounds show little sign of recovery. Summer feeding areas are poorly described and so not shown.
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Rafaela Schinegger @rschinegger.bsky.social · 08/10/2025
Save the Date! Am 13. November 2025 findet der 11. @bokuvienna.bsky.social Nachhaltigkeitstag statt, unter dem Motto „Renaturierung & Biodiversität“. 📍 Eintritt frei – keine Anmeldung erforderlich. ➡️ Alle Infos unter short.boku.ac.at/nht2025 #BOKUNachhaltigkeitstag #Renaturierung #Biodiversität
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David Leclere 🇵🇸 🇺🇦 @dleclere.bsky.social · 26/09/2025
🚂 A peine lancés et déjà supprimés ? Sauvons les trains de nuit Paris-Berlin et Paris-Vienne, un voyage bas-carbone largement plébiscité par ses utilisateurs agir.greenvoice.fr/petitions/sa...
agir.greenvoice.fr
🚂 Sauvons les trains de nuit Paris-Berlin et Paris-Vienne
Signez la pétition maintenant !
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IngerAndersen.bsky.social @ingerandersen.bsky.social · 20/09/2025
The BBNJ agreement comes into force! A victory for our oceans, planet and environmental multilateralism. Now the work begins. Quick, effective implementation is key. Our ocean is the foundation of our very existence. Today we took an important step to save not only our ocean, but also our future.
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Society for Conservation Biology - Europe @scbeurope.bsky.social · 18/09/2025
🚨 First call! 🚨 European Congress for Conservation Biology (Leiden, the Netherlands in July 6th to 10th 2026) is open for proposals: symposia, panels, workshops & training on effective biodiversity conservation. Deadline Oct 31st 2025 👉 eccb26Leiden.eu #ECCB2026
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European Environmental Bureau🍃 @eeb.org · 17/09/2025
🧵 1/4 🔬💧 Over 600 scientists from across Europe have signed a joint statement calling on the EU to urgently update its water pollution rules. 📢 Freshwater ecosystems are collapsing - and outdated policies aren't keeping up. Full statement ➡️ www.fba.org.uk/fba-voice/sc... #HandsOffNature
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Andreas Sieber @andreassieber.bsky.social · 22/08/2025
#UN confirms: people in #Gaza suffer from a #famine. A famine "openly promoted" by the government of #Israel as a weapon of war.
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rusty54.bsky.social @rusty54.bsky.social · 08/08/2025
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David Leclere 🇵🇸 🇺🇦 @dleclere.bsky.social · 22/08/2025
🤢
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Bon Pote @bonpote.com · 19/07/2025
On l’a fait ! 500 000 signatures avec 200 000 signatures en moins de 10h ce samedi 🔥 Il est désormais possible qu’il y ait un (vrai) débat à l’Assemblée nationale sur l’abrogation de la loi Duplomb. Nouvel objectif 1 MILLION de signatures !! petitions.assemblee-nationale.fr/initiatives/...
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