Guy Pe'er
@guypeer.bsky.social
Conservation biologist @idiv/UFZ. Focus on EU's Common Agricultural Policy & Nature Restoration Regulation. Agri EU Projects Agroecology-TRANSECT, LAFERIA.
Butterflies & citizen science projects: VielFalterGarten, UNP+, BMS-IL. Father of 2.
BUND, S4F, SCB
Butterflies & citizen science projects: VielFalterGarten, UNP+, BMS-IL. Father of 2.
BUND, S4F, SCB
Pinned
Guy Pe'er
@guypeer.bsky.social
· Oct 12
1/5 "Characterizing the Global Polycrisis: A Systematic Review of Recent Literature" - newly published in Annual Review of Env. & Resources (Rakowski & Schaan et al. 2025)!
We harvested all papers on the global polycrisis and analysed a) what it is, b) its components, c) drivers, and d) solutions.
We harvested all papers on the global polycrisis and analysed a) what it is, b) its components, c) drivers, and d) solutions.
What thoughts do you have when you see this picture?
My thoughts go on the direction of food security, income per ha or kg, food waste, and lack of labour in rural areas.
And you?
My thoughts go on the direction of food security, income per ha or kg, food waste, and lack of labour in rural areas.
And you?
November 25, 2025 at 5:53 PM
What thoughts do you have when you see this picture?
My thoughts go on the direction of food security, income per ha or kg, food waste, and lack of labour in rural areas.
And you?
My thoughts go on the direction of food security, income per ha or kg, food waste, and lack of labour in rural areas.
And you?
An impressive example of how climate oscillations look and feel like: a cold-spell in central Europe, an exceptional heat in the Middle East.
The two phenomena could be related, e.g. if a stronger Saharan (warm) system pushes itself up north and blocking the progress of a cold frontier.
The two phenomena could be related, e.g. if a stronger Saharan (warm) system pushes itself up north and blocking the progress of a cold frontier.
First and the last day this week it has crept into double figures in London.
The cold spell continues strongly in central Europe and separately exceptional cold wave in N Scandinavia. Far southeast is exceptionally warm in Turkey #Istanbul temperatures reached 21C (70F) this afternoon.
The cold spell continues strongly in central Europe and separately exceptional cold wave in N Scandinavia. Far southeast is exceptionally warm in Turkey #Istanbul temperatures reached 21C (70F) this afternoon.
November 24, 2025 at 7:41 AM
An impressive example of how climate oscillations look and feel like: a cold-spell in central Europe, an exceptional heat in the Middle East.
The two phenomena could be related, e.g. if a stronger Saharan (warm) system pushes itself up north and blocking the progress of a cold frontier.
The two phenomena could be related, e.g. if a stronger Saharan (warm) system pushes itself up north and blocking the progress of a cold frontier.
Hitting right to the point on a key issue: advertisements.
🚆 In 2019 Transport for London introduced a ban on junk food advertising.
Despite facing fierce lobbying, Sadiq Khan pushed ahead with the ban to protect public health. 🍎
So - why are harmful polluting industries still able to advertise across London? 🧐 🧵 1/5
Despite facing fierce lobbying, Sadiq Khan pushed ahead with the ban to protect public health. 🍎
So - why are harmful polluting industries still able to advertise across London? 🧐 🧵 1/5
Fossil Ads — Badvertising
www.badverts.org
November 19, 2025 at 11:31 AM
Hitting right to the point on a key issue: advertisements.
Last chance to register to our science-policy event on #agroecology tomorrow.
Speakers: Alexandra Waldman (Slovenia), Adrien Swartebroeckx (Belgium), Stephen Leitheiser (Netherlands), Sebastian Lakner (DE) and me.
I will talk about EU policies, the impact of politics, and the role(s) of science.
Speakers: Alexandra Waldman (Slovenia), Adrien Swartebroeckx (Belgium), Stephen Leitheiser (Netherlands), Sebastian Lakner (DE) and me.
I will talk about EU policies, the impact of politics, and the role(s) of science.
November 19, 2025 at 9:20 AM
Last chance to register to our science-policy event on #agroecology tomorrow.
Speakers: Alexandra Waldman (Slovenia), Adrien Swartebroeckx (Belgium), Stephen Leitheiser (Netherlands), Sebastian Lakner (DE) and me.
I will talk about EU policies, the impact of politics, and the role(s) of science.
Speakers: Alexandra Waldman (Slovenia), Adrien Swartebroeckx (Belgium), Stephen Leitheiser (Netherlands), Sebastian Lakner (DE) and me.
I will talk about EU policies, the impact of politics, and the role(s) of science.
Reposted by Guy Pe'er
This is interesting — a recent study of mode share (the % share of transportation trips by car, transit, walking, biking etc) relative to city size and income levels in almost 800 cities in 61 countries. Interesting results. HT @davidzipper.bsky.social
www.sciencedirect.com/science/arti...
www.sciencedirect.com/science/arti...
November 15, 2025 at 8:43 PM
This is interesting — a recent study of mode share (the % share of transportation trips by car, transit, walking, biking etc) relative to city size and income levels in almost 800 cities in 61 countries. Interesting results. HT @davidzipper.bsky.social
www.sciencedirect.com/science/arti...
www.sciencedirect.com/science/arti...
#agroecology offers a range of solutions for unhealthy agrifood systems.
Join us on 20.10 to hear and talk about...
How we facilitate innovation;
Why agroecology doesn't expand fast enough;
How can the CAP do better;
What can be the role of science; and
What we think of the CAP reform proposal. 👉
Join us on 20.10 to hear and talk about...
How we facilitate innovation;
Why agroecology doesn't expand fast enough;
How can the CAP do better;
What can be the role of science; and
What we think of the CAP reform proposal. 👉
Join us on 20 Nov to hear more about these policy briefs and to explore how #Agroecology can shape EU policy for resilient food systems 👇
www.eventbrite.co.uk/e/agroecolog...
www.eventbrite.co.uk/e/agroecolog...
November 14, 2025 at 1:52 PM
#agroecology offers a range of solutions for unhealthy agrifood systems.
Join us on 20.10 to hear and talk about...
How we facilitate innovation;
Why agroecology doesn't expand fast enough;
How can the CAP do better;
What can be the role of science; and
What we think of the CAP reform proposal. 👉
Join us on 20.10 to hear and talk about...
How we facilitate innovation;
Why agroecology doesn't expand fast enough;
How can the CAP do better;
What can be the role of science; and
What we think of the CAP reform proposal. 👉
Reposted by Guy Pe'er
"We’re looking at four more years of #deregulation [#simplification 💩]. They have accepted that rolling back much of the green deal is their mandate, and when you’re holding a hammer, everything looks like a nail” #Weber #EPP
EU conservatives join far-right to gut green rules
EU conservatives join far-right to gut green rules
The European Parliament’s biggest political group, the centre-right European People’s Party, has teamed up with the far right to roll back major parts of the EU’s green corporate rulebook.
euobserver.com
November 14, 2025 at 8:52 AM
"We’re looking at four more years of #deregulation [#simplification 💩]. They have accepted that rolling back much of the green deal is their mandate, and when you’re holding a hammer, everything looks like a nail” #Weber #EPP
Reposted by Guy Pe'er
We are hiring: 4 PhD Positions in Ecology / Data Science and one Ecological Data Scientist. For more information, see www.uni-regensburg.de/universitaet...
We are hiring: 4 PhD Positions in Ecology / Data Science and one Ecological Data Scientist
We are looking for 4 PhD Positions and one Scientific Programmer / Ecological Data Scientist to join the AG Hartig (Theoretical Ecology)
www.uni-regensburg.de
November 13, 2025 at 4:14 PM
We are hiring: 4 PhD Positions in Ecology / Data Science and one Ecological Data Scientist. For more information, see www.uni-regensburg.de/universitaet...
Science-policy webinar:
Join us on 20.10.2025 (10-12 CET) to hear policy-relevant results of @agtransect.bsky.social project:
What farmers plead for; barriers & levers 4 expanding agroecology; implications for CAP; evaluation of the CAP reform.
Register here:
www.eventbrite.co.uk/e/agroecolog...
Join us on 20.10.2025 (10-12 CET) to hear policy-relevant results of @agtransect.bsky.social project:
What farmers plead for; barriers & levers 4 expanding agroecology; implications for CAP; evaluation of the CAP reform.
Register here:
www.eventbrite.co.uk/e/agroecolog...
November 13, 2025 at 4:14 PM
Science-policy webinar:
Join us on 20.10.2025 (10-12 CET) to hear policy-relevant results of @agtransect.bsky.social project:
What farmers plead for; barriers & levers 4 expanding agroecology; implications for CAP; evaluation of the CAP reform.
Register here:
www.eventbrite.co.uk/e/agroecolog...
Join us on 20.10.2025 (10-12 CET) to hear policy-relevant results of @agtransect.bsky.social project:
What farmers plead for; barriers & levers 4 expanding agroecology; implications for CAP; evaluation of the CAP reform.
Register here:
www.eventbrite.co.uk/e/agroecolog...
Reposted by Guy Pe'er
justiceandconservation.com/so/abPfKR0nB...
A really well written blog post about the values people hold in relation to #grassland restoration. A key outcome of our Grassworks project, asking what leads to success in grassland restoration.
A really well written blog post about the values people hold in relation to #grassland restoration. A key outcome of our Grassworks project, asking what leads to success in grassland restoration.
New Blog Post
THREE WAYS OF LIVING WITH GRASSLANDS: WHAT A GERMAN “REAL-WORLD LAB” TEACHES US ABOUT RESTORATION
justiceandconservation.com
November 7, 2025 at 6:12 AM
justiceandconservation.com/so/abPfKR0nB...
A really well written blog post about the values people hold in relation to #grassland restoration. A key outcome of our Grassworks project, asking what leads to success in grassland restoration.
A really well written blog post about the values people hold in relation to #grassland restoration. A key outcome of our Grassworks project, asking what leads to success in grassland restoration.
Yesterday evening I left the EU Parliament at 19:30, after a very long day.
Good news is that members of 4 parties are unhappy about the CAP proposal, so there's a potential openness for discussion.
The bad news is that the overall spirit on environment is rather 'slash-and-burn'. Quite alarming.
Good news is that members of 4 parties are unhappy about the CAP proposal, so there's a potential openness for discussion.
The bad news is that the overall spirit on environment is rather 'slash-and-burn'. Quite alarming.
November 12, 2025 at 4:20 PM
Yesterday evening I left the EU Parliament at 19:30, after a very long day.
Good news is that members of 4 parties are unhappy about the CAP proposal, so there's a potential openness for discussion.
The bad news is that the overall spirit on environment is rather 'slash-and-burn'. Quite alarming.
Good news is that members of 4 parties are unhappy about the CAP proposal, so there's a potential openness for discussion.
The bad news is that the overall spirit on environment is rather 'slash-and-burn'. Quite alarming.
Farmers at the frontline of #climatechange:
Bogdan Cătălin Andrei, farmer from Romania:
"Without water, there Is no Life... Farmers don’t ask for privileges, only for the conditions to survive and protect nature".
Yet what looks like vast monocultures belong to hundreds of farmers. CAP doesn't help.
Bogdan Cătălin Andrei, farmer from Romania:
"Without water, there Is no Life... Farmers don’t ask for privileges, only for the conditions to survive and protect nature".
Yet what looks like vast monocultures belong to hundreds of farmers. CAP doesn't help.
November 12, 2025 at 12:59 PM
Farmers at the frontline of #climatechange:
Bogdan Cătălin Andrei, farmer from Romania:
"Without water, there Is no Life... Farmers don’t ask for privileges, only for the conditions to survive and protect nature".
Yet what looks like vast monocultures belong to hundreds of farmers. CAP doesn't help.
Bogdan Cătălin Andrei, farmer from Romania:
"Without water, there Is no Life... Farmers don’t ask for privileges, only for the conditions to survive and protect nature".
Yet what looks like vast monocultures belong to hundreds of farmers. CAP doesn't help.
Yesterday at @europarl.europa.eu we presented the voices of research & science from three projects: CAP4GI, Agroecology-TRANSECT & EuropeLand. Thank you @mariawalshmep.bsky.social (EPP), Maria Noichl (S&D) & Michal Wiezik (Renew) for hosting, and Elisabeth Werner (DG AGRI) for the discussion!
November 12, 2025 at 6:06 AM
Yesterday at @europarl.europa.eu we presented the voices of research & science from three projects: CAP4GI, Agroecology-TRANSECT & EuropeLand. Thank you @mariawalshmep.bsky.social (EPP), Maria Noichl (S&D) & Michal Wiezik (Renew) for hosting, and Elisabeth Werner (DG AGRI) for the discussion!
Master’s thesis: 'Optimising Farmland Biodiversity Monitoring with a Virtual Ecologist Modelling Approach'.
Do you know someone studying ecology, with good programming/modelling skills? Or a programmer interested in ecology? Please share with them!
recruitingapp-5128.de.umantis.com/Vacancies/32...
Do you know someone studying ecology, with good programming/modelling skills? Or a programmer interested in ecology? Please share with them!
recruitingapp-5128.de.umantis.com/Vacancies/32...
Master’s thesis: Optimising Farmland Biodiversity Monitoring with a Virtual Ecologist Modelling Approach
recruitingapp-5128.de.umantis.com
November 10, 2025 at 5:37 PM
Master’s thesis: 'Optimising Farmland Biodiversity Monitoring with a Virtual Ecologist Modelling Approach'.
Do you know someone studying ecology, with good programming/modelling skills? Or a programmer interested in ecology? Please share with them!
recruitingapp-5128.de.umantis.com/Vacancies/32...
Do you know someone studying ecology, with good programming/modelling skills? Or a programmer interested in ecology? Please share with them!
recruitingapp-5128.de.umantis.com/Vacancies/32...
Worried about the global polycrisis? About food security, public health, or the degradation of democracies?
Then you'll be interested in knowing that, as a matter of great urgency, the EU proposes a new package to enhance and simplify the production of...
wine.
Then you'll be interested in knowing that, as a matter of great urgency, the EU proposes a new package to enhance and simplify the production of...
wine.
“No meeting minutes have been shared, no stakeholder consultation has been opened [..]. For those who work to reduce alcohol-related harm, [..] the message it sends is unmistakable: the interests of producers matter more than the wellbeing of citizens.”
euobserver.com/eu-political...
euobserver.com/eu-political...
Lack of transparency of EU's new wine proposals will cause a hangover
The EU Wine Package — a broad reform of the rules for how wine should be produced, marketed, and labelled across the EU — is moving forward with unusual speed and limited transparency.
euobserver.com
November 10, 2025 at 10:02 AM
Worried about the global polycrisis? About food security, public health, or the degradation of democracies?
Then you'll be interested in knowing that, as a matter of great urgency, the EU proposes a new package to enhance and simplify the production of...
wine.
Then you'll be interested in knowing that, as a matter of great urgency, the EU proposes a new package to enhance and simplify the production of...
wine.
Preparing my presentation for tomorrow's event in the EU Parliament, bringing the joint views of science and farmers with regards to the Common Agricultural Policy. We'll present results from three projects, especially @agtransect.bsky.social.
November 10, 2025 at 7:49 AM
Preparing my presentation for tomorrow's event in the EU Parliament, bringing the joint views of science and farmers with regards to the Common Agricultural Policy. We'll present results from three projects, especially @agtransect.bsky.social.
What is agroecology, and why is it worth investing in it?
Watch our project's video here,
www.youtube.com/watch?v=CUlk...
...and join us for the upcoming online event 20.11.2025: "Cultivating Change - building policy from the ground up".
Register here:
www.agroecology-transect.net/events/virtu...
Watch our project's video here,
www.youtube.com/watch?v=CUlk...
...and join us for the upcoming online event 20.11.2025: "Cultivating Change - building policy from the ground up".
Register here:
www.agroecology-transect.net/events/virtu...
Innovation Hubs - Agroecology-TRANSECT
YouTube video by Agroecology-TRANSECT
www.youtube.com
November 8, 2025 at 11:27 PM
What is agroecology, and why is it worth investing in it?
Watch our project's video here,
www.youtube.com/watch?v=CUlk...
...and join us for the upcoming online event 20.11.2025: "Cultivating Change - building policy from the ground up".
Register here:
www.agroecology-transect.net/events/virtu...
Watch our project's video here,
www.youtube.com/watch?v=CUlk...
...and join us for the upcoming online event 20.11.2025: "Cultivating Change - building policy from the ground up".
Register here:
www.agroecology-transect.net/events/virtu...
I used to think that it's especially in the "developed" world (Europe, N America, Australia etc) that people have devestated nature. But the Andes all around Cusco have hardly any traces of natural vegetation, apparently since Inka times.
So it's not "colonialism", it's rather imperialism here.
So it's not "colonialism", it's rather imperialism here.
October 30, 2025 at 9:24 PM
I used to think that it's especially in the "developed" world (Europe, N America, Australia etc) that people have devestated nature. But the Andes all around Cusco have hardly any traces of natural vegetation, apparently since Inka times.
So it's not "colonialism", it's rather imperialism here.
So it's not "colonialism", it's rather imperialism here.
Reposted by Guy Pe'er
How NGOs die - Europe’s playbook for dismantling democracy.
This piece from @alemanno.bsky.social is chilling. Question is when will animal protection NGOs come under similar attack?
euobserver.com/EU%20Politic...
This piece from @alemanno.bsky.social is chilling. Question is when will animal protection NGOs come under similar attack?
euobserver.com/EU%20Politic...
How NGOs die — Europe's playbook for dismantling democracy
The playbook is brutally efficient: fabricate a scandal, delegitimise and defund organisations into dependency on philanthropic support, then criminalise their new funding as foreign influence — all w...
euobserver.com
October 29, 2025 at 6:43 AM
How NGOs die - Europe’s playbook for dismantling democracy.
This piece from @alemanno.bsky.social is chilling. Question is when will animal protection NGOs come under similar attack?
euobserver.com/EU%20Politic...
This piece from @alemanno.bsky.social is chilling. Question is when will animal protection NGOs come under similar attack?
euobserver.com/EU%20Politic...
I learn that last week the Council agreed on 90% minus 5% credits (so, de facto 85%) GHG emmission reduction by 2040. Not super ambitious but ok given the current political context.
BIG THANKS to all scientists who signed the open letter:
It seems our voices were heard, and not completely ignored.
BIG THANKS to all scientists who signed the open letter:
It seems our voices were heard, and not completely ignored.
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...
"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...
October 28, 2025 at 7:49 AM
I learn that last week the Council agreed on 90% minus 5% credits (so, de facto 85%) GHG emmission reduction by 2040. Not super ambitious but ok given the current political context.
BIG THANKS to all scientists who signed the open letter:
It seems our voices were heard, and not completely ignored.
BIG THANKS to all scientists who signed the open letter:
It seems our voices were heard, and not completely ignored.
Reposted by Guy Pe'er
💻 If you missed LAFERIA's stakeholder #webinar, don't worry - you can now watch it on our YouTube channel!
📽️ Read about the webinar and watch the recording: laferia-project.eu/news/laferia...
📽️ Read about the webinar and watch the recording: laferia-project.eu/news/laferia...
October 24, 2025 at 11:57 AM
💻 If you missed LAFERIA's stakeholder #webinar, don't worry - you can now watch it on our YouTube channel!
📽️ Read about the webinar and watch the recording: laferia-project.eu/news/laferia...
📽️ Read about the webinar and watch the recording: laferia-project.eu/news/laferia...
Reposted by Guy Pe'er
...offener Brief an die europäischen Staats- und Regierungschefs von mehr als 2000 europäischen Wissenschaftler:innen, darunter knapp 50 aus Deutschland:
»Die politische Diskussion bewegt sich von den wissenschaftlichen Erkenntnissen weg«
»Die politische Diskussion bewegt sich von den wissenschaftlichen Erkenntnissen weg«
October 21, 2025 at 4:49 PM
...offener Brief an die europäischen Staats- und Regierungschefs von mehr als 2000 europäischen Wissenschaftler:innen, darunter knapp 50 aus Deutschland:
»Die politische Diskussion bewegt sich von den wissenschaftlichen Erkenntnissen weg«
»Die politische Diskussion bewegt sich von den wissenschaftlichen Erkenntnissen weg«
Dear @eucopresident.consilium.europa.eu @vonderleyen.ec.europa.eu @pedrosanchezcas.bsky.social @donald-tusk.bsky.social @micheal-martin.bsky.social @kristenmichalpm.bsky.social: Ahead of 23.10, please see an open letter signed by 2,178 scientists, calling 4 ambitious 2040 climate targets.
Thank you.
Thank you.
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...
"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...
October 20, 2025 at 8:19 PM
Dear @eucopresident.consilium.europa.eu @vonderleyen.ec.europa.eu @pedrosanchezcas.bsky.social @donald-tusk.bsky.social @micheal-martin.bsky.social @kristenmichalpm.bsky.social: Ahead of 23.10, please see an open letter signed by 2,178 scientists, calling 4 ambitious 2040 climate targets.
Thank you.
Thank you.
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...
"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...
October 20, 2025 at 4:23 PM
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...
"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...