David Leclere 🇵🇸 🇺🇦
@dleclere.bsky.social
Researcher at @iiasa.ac.at || land use modeling | biodiversity | climate change || Views are my own
Reposted by David Leclere 🇵🇸 🇺🇦
🌍 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...
🗓 19 Nov 2025 | 1-2pm CET
📩 Register by 17 Nov: yssp.admin@iiasa.ac.at
▶️ iiasa.ac.at/early-career...
November 7, 2025 at 2:48 PM
🌍 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...
🗓 19 Nov 2025 | 1-2pm CET
📩 Register by 17 Nov: yssp.admin@iiasa.ac.at
▶️ iiasa.ac.at/early-career...
Reposted by David Leclere 🇵🇸 🇺🇦
To truly protect #biodiversity, we must harness #PredictiveModels to reveal which #ConservationBiology strategies succeed—and which fail. Read the PNAS News Opinion: https://ow.ly/iVsF50Xl1BL
#GlobalBiodiversityFramework #GBF #conservation
#GlobalBiodiversityFramework #GBF #conservation
November 1, 2025 at 5:00 PM
To truly protect #biodiversity, we must harness #PredictiveModels to reveal which #ConservationBiology strategies succeed—and which fail. Read the PNAS News Opinion: https://ow.ly/iVsF50Xl1BL
#GlobalBiodiversityFramework #GBF #conservation
#GlobalBiodiversityFramework #GBF #conservation
Reposted by David Leclere 🇵🇸 🇺🇦
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...
📅 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...
November 13, 2025 at 5:18 AM
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...
📅 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...
Reposted by David Leclere 🇵🇸 🇺🇦
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
Read here: buff.ly/U0XaME9
November 4, 2025 at 2:03 PM
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
Read here: buff.ly/U0XaME9
Reposted by David Leclere 🇵🇸 🇺🇦
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....
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....
doi.org
October 29, 2025 at 8:25 PM
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....
Reposted by David Leclere 🇵🇸 🇺🇦
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
Forests are not bargaining chips🌳😬
See our full reaction➡️ www.wwf.eu?19703941/Eur...
#Deforestation #Together4forests #ItsOurNature
October 21, 2025 at 1:39 PM
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
Forests are not bargaining chips🌳😬
See our full reaction➡️ www.wwf.eu?19703941/Eur...
#Deforestation #Together4forests #ItsOurNature
Reposted by David Leclere 🇵🇸 🇺🇦
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.
The newly published 2025 Forest Declaration Assessment shows that nations are 63% off track from meeting their zero-deforestation target.
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…
news.mongabay.com
October 15, 2025 at 11:17 AM
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.
The newly published 2025 Forest Declaration Assessment shows that nations are 63% off track from meeting their zero-deforestation target.
Reposted by David Leclere 🇵🇸 🇺🇦
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.
Under standard models, we would have expected krill populations to have *exploded*.
Instead, they DROPPED exponentially.
Let's talk about the KRILL PARADOX.
October 9, 2025 at 1:03 PM
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.
Under standard models, we would have expected krill populations to have *exploded*.
Instead, they DROPPED exponentially.
Let's talk about the KRILL PARADOX.
Reposted by David Leclere 🇵🇸 🇺🇦
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
📍 Eintritt frei – keine Anmeldung erforderlich.
➡️ Alle Infos unter short.boku.ac.at/nht2025
#BOKUNachhaltigkeitstag #Renaturierung #Biodiversität
October 8, 2025 at 4:41 PM
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
📍 Eintritt frei – keine Anmeldung erforderlich.
➡️ Alle Infos unter short.boku.ac.at/nht2025
#BOKUNachhaltigkeitstag #Renaturierung #Biodiversität
🚂 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/petitions/sa...
🚂 Sauvons les trains de nuit Paris-Berlin et Paris-Vienne
Signez la pétition maintenant !
agir.greenvoice.fr
September 26, 2025 at 5:41 PM
🚂 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/petitions/sa...
Reposted by David Leclere 🇵🇸 🇺🇦
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.
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.
September 20, 2025 at 5:06 AM
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.
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.
Reposted by David Leclere 🇵🇸 🇺🇦
🚨 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
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
September 18, 2025 at 8:47 AM
🚨 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
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
Reposted by David Leclere 🇵🇸 🇺🇦
🧵 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
🔬💧 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
September 17, 2025 at 6:06 AM
🧵 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
🔬💧 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
Reposted by David Leclere 🇵🇸 🇺🇦
🤢
August 22, 2025 at 12:39 PM
🤢
Reposted by David Leclere 🇵🇸 🇺🇦
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/...
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/...
July 19, 2025 at 2:03 PM
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/...
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/...
Reposted by David Leclere 🇵🇸 🇺🇦
A detailed and heartbreaking report on how Israel systematically destroyed Gaza’s bookstores, printing presses, and publishing houses. It turned centers of learning and knowledge production into ruins and ashes.
Please share widely.
Please share widely.
Israel destroyed Gaza’s printing presses, publishing houses, and bookstores. These were homes to memory, knowledge, and cultural continuity. Ink and manuscripts turned to ash. Presses were silenced mid-sentence.
Report by Fatma Al Zahraa Sehwail:
www.palestine-studies.org/en/node/1657...
Report by Fatma Al Zahraa Sehwail:
www.palestine-studies.org/en/node/1657...
Targeting Printing and Publishing Houses in Gaza: A Cultural Violation and a Memoricide
Palestine Square, فلسطين الميدان
www.palestine-studies.org
July 14, 2025 at 4:26 PM
A detailed and heartbreaking report on how Israel systematically destroyed Gaza’s bookstores, printing presses, and publishing houses. It turned centers of learning and knowledge production into ruins and ashes.
Please share widely.
Please share widely.
Reposted by David Leclere 🇵🇸 🇺🇦
There are way too many things to be upset about these days, but I believe the destruction of public lands should be near the top of the list: www.washingtonpost.com/climate-envi...
Trump to strip protections from millions of acres of national forests
The USDA announced it would begin the process of rolling back protections for nearly 59 million roadless acres of the National Forest system.
www.washingtonpost.com
June 23, 2025 at 10:56 PM
There are way too many things to be upset about these days, but I believe the destruction of public lands should be near the top of the list: www.washingtonpost.com/climate-envi...
Reposted by David Leclere 🇵🇸 🇺🇦
A couple years ago, I was approached by some scientists at The Nature Conservancy with a proposal: Would I help them create a better global restoration opportunity map? The resulting paper is now out, and I will explain my view of it in this thread. www.nature.com/articles/s41...
Addressing critiques refines global estimates of reforestation potential for climate change mitigation - Nature Communications
Reforestation is a key climate change mitigation strategy, but global maps of its potential are widely criticized. This study shows that addressing those critiques substantially refines estimates of t...
www.nature.com
June 23, 2025 at 5:45 PM
A couple years ago, I was approached by some scientists at The Nature Conservancy with a proposal: Would I help them create a better global restoration opportunity map? The resulting paper is now out, and I will explain my view of it in this thread. www.nature.com/articles/s41...
Reposted by David Leclere 🇵🇸 🇺🇦
A new global map of natural forest at 10-m resolution created by Neumann et al. create using Google DeepMind - preprint still in review but available here: eartharxiv.org/repository/v... 🌐 🌏 🧪
June 20, 2025 at 9:01 AM
A new global map of natural forest at 10-m resolution created by Neumann et al. create using Google DeepMind - preprint still in review but available here: eartharxiv.org/repository/v... 🌐 🌏 🧪
Reposted by David Leclere 🇵🇸 🇺🇦
Nature Human Behaviour chose to highlight my article with Thomas Douenne and @linusmattauch.bsky.social by commissioning a Research Briefing.
You can find it under paywall: www.nature.com/articles/s41...
And here in open access: github.com/bixiou/globa...
A timely contribution before #FfD4!
You can find it under paywall: www.nature.com/articles/s41...
And here in open access: github.com/bixiou/globa...
A timely contribution before #FfD4!
June 19, 2025 at 5:56 PM
Nature Human Behaviour chose to highlight my article with Thomas Douenne and @linusmattauch.bsky.social by commissioning a Research Briefing.
You can find it under paywall: www.nature.com/articles/s41...
And here in open access: github.com/bixiou/globa...
A timely contribution before #FfD4!
You can find it under paywall: www.nature.com/articles/s41...
And here in open access: github.com/bixiou/globa...
A timely contribution before #FfD4!
Reposted by David Leclere 🇵🇸 🇺🇦
The great land selloff in the reconciliation bill -- they are selling off huge chunks of the west and Alaska, what is now Forest service and BLM land.
PLEASE share this map with everyone you know who is an outdoors person especially if they live in the West
www.arcgis.com/apps/instant...
www.arcgis.com/apps/instant...
www.arcgis.com
June 17, 2025 at 1:59 AM
The great land selloff in the reconciliation bill -- they are selling off huge chunks of the west and Alaska, what is now Forest service and BLM land.