David Leclère | Lightnews

David Leclere 🇵🇸 🇺🇦

@dleclere.bsky.social

280 followers 1.1K following 6 posts

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

Videos

Environmental science 55%

Geography 14%

Posts Replies Media Videos

Reposted by David Leclère

Carbon Brief @carbonbrief.org · 6d

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.

Reposted by Craig R. Primmer, Richard Waite, Jessica A. Gephart , and 1 more Craig R. Primmer, Richard Waite, Jessica A. Gephart, David Leclère

Halley E. Froehlich @dochfroehlich.bsky.social · 12d

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

Reposted by David Leclère

WWF EU @wwf.eu · 20d

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

Reposted by Daniel Müller, David Leclère, Guy Pe’er , and 1 more Daniel Müller, David Leclère, Guy Pe’er, Emilio Vilanova

Mongabay @mongabay.com · 27d

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.

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

Reposted by Lisa W. Fazio, John R. Hutchinson, Hugo Mercier , and 2 more Lisa W. Fazio, John R. Hutchinson, Hugo Mercier, David Leclère, Hansraj Gautam

c0nc0rdance @c0nc0rdance.bsky.social · Oct 9

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.

Reposted by David Leclère

Rafaela Schinegger @rschinegger.bsky.social · Oct 8

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

David Leclere 🇵🇸 🇺🇦 @dleclere.bsky.social · Oct 7

Bon courage !!

David Leclere 🇵🇸 🇺🇦 @dleclere.bsky.social · Sep 26

🚂 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...

🚂 Sauvons les trains de nuit Paris-Berlin et Paris-Vienne

Signez la pétition maintenant !

agir.greenvoice.fr

Reposted by Karen R. Lips, David Leclère, UN Environment

IngerAndersen.bsky.social @ingerandersen.bsky.social · Sep 20

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.

Reposted by David Leclère

Society for Conservation Biology - Europe @scbeurope.bsky.social · Sep 18

🚨 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

Reposted by Emili García‐Berthou, David Leclère

European Environmental Bureau🍃 @eeb.org · Sep 17

🧵 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

Reposted by David Leclère

Andreas Sieber @andreassieber.bsky.social · Aug 22

#UN confirms: people in #Gaza suffer from a #famine.

A famine "openly promoted" by the government of #Israel as a weapon of war.

David Leclere 🇵🇸 🇺🇦 @dleclere.bsky.social · Aug 22

🤢

Lumi @lumi-sco.bsky.social · Aug 22

Relire plusieurs fois le titre

Titre d'article de l'AFP du 22 août 2025, capture écran Médiapart, "L'ONU affirme qu'une famine est en cours à Gaza, Israël dément et menace de raser la ville"

Reposted by David Leclère

Lumi @lumi-sco.bsky.social · Aug 22

Relire plusieurs fois le titre

Reposted by David Leclère

Bon Pote @bonpote.com · Jul 19

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/...

Reposted by Andrea Teti, David Leclère

Institute for Palestine Studies @palestinestudies.bsky.social · Jul 14

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...

Targeting Printing and Publishing Houses in Gaza: A Cultural Violation and a Memoricide

Palestine Square, فلسطين الميدان

www.palestine-studies.org

Reposted by Jesse M. Shapiro, Felix Riede, David Leclère

Colin Carlson @colincarlson.bsky.social · Jan 15

🚨😷🧪 NEW: A growing body of evidence shows that pandemics, biodiversity loss, and climate change are part of a broader polycrisis - but there are no simple solutions. A sweeping overview of "Pathogens and planetary change" for the first issue of @natrevbiodiv.bsky.social, out now 🔓 rdcu.be/d6lHl

Top panels: graphs showing increases in spillover events, extinction rates, and temperature anomalies over the last few centuries. Bottom panel: a map of 10 pandemics since the year 1900. Four were linked to agriculture, two to wildlife use, and one to climate change.

Reposted by Suzanne de Cheveigné, David Leclère, Clélia Sirami , and 1 more Suzanne de Cheveigné, David Leclère, Clélia Sirami, Johanna Siméant

Valérie Masson-Delmotte @valmasdel.bsky.social · Jul 4

revue21.fr/article/coll...

Pour 2 millions, le Collège de France perd le droit de critiquer Total

L’institution doit s’abstenir de tout propos susceptible de porter atteinte à l’image de la firme pétrolière, mécène de sa chaire Avenir Commun Durable.

revue21.fr

Reposted by Neil Pederson, David Leclère, Carlos Carroll

Elizabeth Kolbert @elizkolbert.bsky.social · Jun 23

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

Reposted by Garry Peterson, David Leclère

Forrest Fleischman @forrestf.bsky.social · Jun 23

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

Reposted by Jonathan Lenoir, David Leclère, Emilio Vilanova , and 1 more Jonathan Lenoir, David Leclère, Emilio Vilanova, Darío Martin‐Benito

Markus Eichhorn @markuseichhorn.bsky.social · Jun 20

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... 🌐 🌏 🧪

Global extent of natural forests in 2020 (according to Neumann et al. in review) based on a probability threshold of 0.52.

Reposted by David Leclère

Adrien Fabre @adrien-fabre.bsky.social · Jun 19

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!

Reposted by David Leclère

Hugh Lander @quispme.bsky.social · Jun 17

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

Reposted by David Leclère

Scientists4Future Österreich @s4fat.bsky.social · Jun 13

📣 Call to Action for Biodiversity! 🌱
We urge the EU to boost biodiversity funding in the next Multiannual Financial Framework (2028+).
📉 80% of EU habitats are in poor condition — we need action now!
All scientists please ✅ sign and 🔁 share in your networks
fundnature.scientists4future.at

Closing the biodiversity funding gap

fundnature.scientists4future.at

Reposted by David Leclère

NaturaConnect @naturaconnect.bsky.social · Jun 3

🌿Financing the Trans-European Nature Network: Costs, Opportunities, and the Road Ahead. Join our webinar on 18 June, 10:00–11:30 CEST to explore costs, funding options & the future MFF. Register now: buff.ly/GAZp7V6

#NaturaConnect #HorizonEU

Reposted by Matthias C. Rillig, David Leclère, Stephanie Schelfhout

Nature Ecology & Evolution @natecoevo.nature.com · Jun 10

Six actions for ecologists in times of planetary crisis: www.nature.com/articles/s41...

✅Explicitly recognize and address the #biodiversity crisis
✅Explore positive futures
✅Defend academic freedom
✅Go political
✅Inspire society
✅Address the colonial legacy of ecology

Free to read: rdcu.be/eqjlk

Screenshot of the title and author list from the Correspondence article "Six actions for ecologists in times of planetary crisis" from the Nature Ecology & Evolution homepage

Reposted by Rachael Garrett, David Leclère

Oxford Future of Food @oxfutureoffood.bsky.social · Jun 9

We are looking forward to welcoming @rachgarr.bsky.social to @oxmartinschool.bsky.social next week Wednesday (18 June) to talk about equity challenges in the environmental governance of food supply chains. Open to all!

Bookings:
www.futureoffood.ox.ac.uk/event/talk-b...

Addressing equity challenges in the environmental governance of food supply chains: the case of deforestation-risk commodities in the tropics

Future of Food seminar: Professor Rachael Garrett

www.futureoffood.ox.ac.uk

Reposted by Wolfgang Crämer, Paul Behrens, David Leclère

Paul Behrens @profpaulbehrens.bsky.social · Jun 2

This is incredibly unfair: high-income nations with large dairy sectors are looking to adopt a "no additional warming" target, avoiding the methane cuts needed to meet international targets and pledges.

We have written an open letter to the NZ PM and I spoke to the FT👇🧵

www.ft.com/content/2ea6...

Scientists accuse New Zealand and Ireland of trying to cover up livestock emissions

‘Accounting trick’ to support methane-emitting sectors undermines fight against climate change, say researchers

www.ft.com

Reposted by Rafael H. M. Pereira, David Leclère

Ketan Joshi @ketanjoshi.co · May 26

hey lovelies, I finally got around to publicly sharing my compilation of big tech energy and emissions data. I'll be using it in articles, posts etc but it's yours too, free to use (w/ attribution is nice)

ketanjoshi.co/2025/05/23/d...

a chart showing power consumption of big tech companies

Light upyour news

Sign in to Lightnews

Sign up to start reading

Connect Bluesky

Connect with Bluesky

Light up
your news