🌍⚖️ Sébastien Duyck
@duycks.bsky.social
Senior Attorney - #ClimateJustice & right to healthy environment at
the Center for International Environmental Law @ciel.org | demystifying international law, one emoji at a time | Focused on #ClimateJusticeAtTheICJ | Dad * Opinions my own
the Center for International Environmental Law @ciel.org | demystifying international law, one emoji at a time | Focused on #ClimateJusticeAtTheICJ | Dad * Opinions my own
⚡️⚖️ 🌍 European Court of Human Rights rules that, as a matter of legal obligations, States must assess & consider cumulative emissions resulting combustion of fossil fuel (scope 3 emissions) when validating new extraction projects.
🔍 Stay tuned for further analysis. #ClimateLitigation
🔍 Stay tuned for further analysis. #ClimateLitigation
October 28, 2025 at 9:24 AM
⚡️⚖️ 🌍 European Court of Human Rights rules that, as a matter of legal obligations, States must assess & consider cumulative emissions resulting combustion of fossil fuel (scope 3 emissions) when validating new extraction projects.
🔍 Stay tuned for further analysis. #ClimateLitigation
🔍 Stay tuned for further analysis. #ClimateLitigation
Reposted by 🌍⚖️ Sébastien Duyck
"Climate & environmental policies must not create new harms for vulnerable communities or be weaponized in the shift to a fossil-free world."
@duycks.bsky.social of @ciel.org stresses the need to advance a #JustTransition while remaining anchored in #HumanRights obligations.
@duycks.bsky.social of @ciel.org stresses the need to advance a #JustTransition while remaining anchored in #HumanRights obligations.
September 30, 2025 at 2:58 PM
"Climate & environmental policies must not create new harms for vulnerable communities or be weaponized in the shift to a fossil-free world."
@duycks.bsky.social of @ciel.org stresses the need to advance a #JustTransition while remaining anchored in #HumanRights obligations.
@duycks.bsky.social of @ciel.org stresses the need to advance a #JustTransition while remaining anchored in #HumanRights obligations.
Reposted by 🌍⚖️ Sébastien Duyck
Next Friday in Budapest, CIEL’s @duycks.bsky.social and @barnabypace.bsky.social join journalists and scientists at #ClimateArena2025 - an inspiring working conference by @journalismarena.eu to strengthen climate reporting across Europe.
📍 Corvinus University, Budapest
🗓️ October 10
📍 Corvinus University, Budapest
🗓️ October 10
October 3, 2025 at 6:53 AM
Next Friday in Budapest, CIEL’s @duycks.bsky.social and @barnabypace.bsky.social join journalists and scientists at #ClimateArena2025 - an inspiring working conference by @journalismarena.eu to strengthen climate reporting across Europe.
📍 Corvinus University, Budapest
🗓️ October 10
📍 Corvinus University, Budapest
🗓️ October 10
Reposted by 🌍⚖️ Sébastien Duyck
🌐 With #UNGA underway, States must uphold the international rule of law to prevent the continuation of genocide in Gaza.
There can be no environmental justice while the universal nature of human rights faces such grave and flagrant violations.
🔗 Read our statement: bit.ly/3Iy1Bwi
There can be no environmental justice while the universal nature of human rights faces such grave and flagrant violations.
🔗 Read our statement: bit.ly/3Iy1Bwi
UN General Assembly Opens with Ever Greater Urgency to Uphold the International Rule of Law - Center for International Environmental Law
At the 80th United Nations General Assembly, States must uphold the international rule of law and protect human rights.
bit.ly
September 22, 2025 at 6:00 PM
🌐 With #UNGA underway, States must uphold the international rule of law to prevent the continuation of genocide in Gaza.
There can be no environmental justice while the universal nature of human rights faces such grave and flagrant violations.
🔗 Read our statement: bit.ly/3Iy1Bwi
There can be no environmental justice while the universal nature of human rights faces such grave and flagrant violations.
🔗 Read our statement: bit.ly/3Iy1Bwi
Reposted by 🌍⚖️ Sébastien Duyck
Since the 2024 judgment, the Council of Europe has been overseeing Switzerland’s climate action.
Today’s decision points to ongoing gaps and calls on Swiss authorities to report back on further progress in 2026.
Today’s decision points to ongoing gaps and calls on Swiss authorities to report back on further progress in 2026.
September 18, 2025 at 10:58 AM
Since the 2024 judgment, the Council of Europe has been overseeing Switzerland’s climate action.
Today’s decision points to ongoing gaps and calls on Swiss authorities to report back on further progress in 2026.
Today’s decision points to ongoing gaps and calls on Swiss authorities to report back on further progress in 2026.
Reposted by 🌍⚖️ Sébastien Duyck
⚖️ #ClimateLitigation update: Switzerland’s implementation of its legal obligations under the European Court of Human Rights @echr.coe.int ruling remains insufficient, confirms @coe.int Council of Ministers in its latest decision.
🧵👇
🧵👇
September 18, 2025 at 10:58 AM
⚖️ #ClimateLitigation update: Switzerland’s implementation of its legal obligations under the European Court of Human Rights @echr.coe.int ruling remains insufficient, confirms @coe.int Council of Ministers in its latest decision.
🧵👇
🧵👇
Reposted by 🌍⚖️ Sébastien Duyck
📢 Join us TODAY at #HRC60 for the side event:
“States’ Duty to Regulate Corporations in the Face of the Triple Planetary Crisis”
⏰ 11:00–12:00 CEST
📍 Room VIII, Palais des Nations
Or watch LIVE: bit.ly/46vL0Co
With @ishr.ch, #FES, @fian-international.bsky.social, and #FranciscansInternational
“States’ Duty to Regulate Corporations in the Face of the Triple Planetary Crisis”
⏰ 11:00–12:00 CEST
📍 Room VIII, Palais des Nations
Or watch LIVE: bit.ly/46vL0Co
With @ishr.ch, #FES, @fian-international.bsky.social, and #FranciscansInternational
States’ duty to regulate corporations in the face of triple planetary crisis | HRC60 Side Event
This side event to the 60th session of the Human Rights Council (HRC60), organized by the Center for International Environmental Law (CIEL), the International Service for Human Rights (ISHR), FIAN Int...
bit.ly
September 10, 2025 at 6:47 AM
📢 Join us TODAY at #HRC60 for the side event:
“States’ Duty to Regulate Corporations in the Face of the Triple Planetary Crisis”
⏰ 11:00–12:00 CEST
📍 Room VIII, Palais des Nations
Or watch LIVE: bit.ly/46vL0Co
With @ishr.ch, #FES, @fian-international.bsky.social, and #FranciscansInternational
“States’ Duty to Regulate Corporations in the Face of the Triple Planetary Crisis”
⏰ 11:00–12:00 CEST
📍 Room VIII, Palais des Nations
Or watch LIVE: bit.ly/46vL0Co
With @ishr.ch, #FES, @fian-international.bsky.social, and #FranciscansInternational
Reposted by 🌍⚖️ Sébastien Duyck
The call comes from within – again!
Last Friday, the Committee on Social Affairs, Health & Sustainable Development of the @coe.int called for the legal protection of the right to a healthy environment! 🌍
pace.coe.int/en/news/9992...
1/5
Last Friday, the Committee on Social Affairs, Health & Sustainable Development of the @coe.int called for the legal protection of the right to a healthy environment! 🌍
pace.coe.int/en/news/9992...
1/5
Commitee calls on the Council of Europe to assume its role in addressing climate change and its impact on our fundamental rights
The Committee on Social Affairs, Health and Sustainable Development notes with grave concern that Europe has entered an era in which climate-related disasters are becoming structural: persistent droug...
https://pace.coe.int/en/news/9992/commitee-calls-on-the-council-of-europe-to-assume[%E2%80%A6]essing-climate-change-and-its-impact-on-our-fundamental-rights
September 9, 2025 at 12:09 PM
The call comes from within – again!
Last Friday, the Committee on Social Affairs, Health & Sustainable Development of the @coe.int called for the legal protection of the right to a healthy environment! 🌍
pace.coe.int/en/news/9992...
1/5
Last Friday, the Committee on Social Affairs, Health & Sustainable Development of the @coe.int called for the legal protection of the right to a healthy environment! 🌍
pace.coe.int/en/news/9992...
1/5
Reposted by 🌍⚖️ Sébastien Duyck
⚠️ More than half of all fertilizers are made from fossil fuels. 🛢️ The result? A system that harms our health, drives climate change, and threatens food security. 🍽️ It’s time to rethink what’s on our plates.
👇 Learn more about the frack-to-fork supply chain.
👇 Learn more about the frack-to-fork supply chain.
Frack to Fork: Fossil Fertilizers Harm Health, Climate, and Food Systems (Sept 2025) - Center for International Environmental Law
Fossil-fueled fertilizers drive climate change and threaten human health. Explore their hidden costs and learn proven solutions for resilient food systems.
www.ciel.org
September 8, 2025 at 3:35 PM
⚠️ More than half of all fertilizers are made from fossil fuels. 🛢️ The result? A system that harms our health, drives climate change, and threatens food security. 🍽️ It’s time to rethink what’s on our plates.
👇 Learn more about the frack-to-fork supply chain.
👇 Learn more about the frack-to-fork supply chain.
Reposted by 🌍⚖️ Sébastien Duyck
🌍 In the age of misinformation, what climate science 'counts'?
📆 The very first #ClimateArena 2025 session will see attorney @duycks.bsky.social and documentarist Mette Reitzel address (mis)use of climate science in litigation.
📅 Prog: climatearena2025.sched.com
🎟️ Tix: climatearena.eu/register/
📆 The very first #ClimateArena 2025 session will see attorney @duycks.bsky.social and documentarist Mette Reitzel address (mis)use of climate science in litigation.
📅 Prog: climatearena2025.sched.com
🎟️ Tix: climatearena.eu/register/
September 5, 2025 at 8:56 AM
🌍 In the age of misinformation, what climate science 'counts'?
📆 The very first #ClimateArena 2025 session will see attorney @duycks.bsky.social and documentarist Mette Reitzel address (mis)use of climate science in litigation.
📅 Prog: climatearena2025.sched.com
🎟️ Tix: climatearena.eu/register/
📆 The very first #ClimateArena 2025 session will see attorney @duycks.bsky.social and documentarist Mette Reitzel address (mis)use of climate science in litigation.
📅 Prog: climatearena2025.sched.com
🎟️ Tix: climatearena.eu/register/
Reposted by 🌍⚖️ Sébastien Duyck
Kann Holcim in der Schweiz wegen Klimaschäden aufgrund der Emissionen aus der Zementproduktion verklagt werden? Heute war Gerichtsverhandlung, eine Entscheidung ist noch nicht gefallen. Ein Thread des @ciel.org mit Hintergründen. #climatejustice #klimaklagen
35/ In conclusion, the presiding judge concludes this main hearing, indicating that the Court will communicate the timing of its decision on the case's admissibility through a public notice in the coming weeks.
September 3, 2025 at 7:32 PM
Kann Holcim in der Schweiz wegen Klimaschäden aufgrund der Emissionen aus der Zementproduktion verklagt werden? Heute war Gerichtsverhandlung, eine Entscheidung ist noch nicht gefallen. Ein Thread des @ciel.org mit Hintergründen. #climatejustice #klimaklagen
Reposted by 🌍⚖️ Sébastien Duyck
Residents of Pulau Pari, a small island in Indonesia, accuse Swiss cement giant Holcim of contributing to the climate crisis that threatens their existence. @ecchr.bsky.social @sabincenter.bsky.social
Climate crisis: Indonesian islanders sue Swiss company Holcim
Inhabitants of Indonesia's Pulau Pari island accuse Swiss cement giant Holcim of contributing to the climate crisis that threatens their existence.
www.swissinfo.ch
September 2, 2025 at 7:27 AM
Residents of Pulau Pari, a small island in Indonesia, accuse Swiss cement giant Holcim of contributing to the climate crisis that threatens their existence. @ecchr.bsky.social @sabincenter.bsky.social
Reposted by 🌍⚖️ Sébastien Duyck
🌍📢 Join us LIVE today at 15:00 CEST for the 2025 #GenevaDialogues on #HumanRights & #ClimateChange.
This year’s edition explores how Geneva-based institutions can build on historic climate advisory opinions from #ICJ, #ITLOS & #IACtHR.
#ClimateJustice
This year’s edition explores how Geneva-based institutions can build on historic climate advisory opinions from #ICJ, #ITLOS & #IACtHR.
#ClimateJustice
September 3, 2025 at 12:22 PM
🌍📢 Join us LIVE today at 15:00 CEST for the 2025 #GenevaDialogues on #HumanRights & #ClimateChange.
This year’s edition explores how Geneva-based institutions can build on historic climate advisory opinions from #ICJ, #ITLOS & #IACtHR.
#ClimateJustice
This year’s edition explores how Geneva-based institutions can build on historic climate advisory opinions from #ICJ, #ITLOS & #IACtHR.
#ClimateJustice
hey Lisbeth, thanks for the interest in this important case.
There won't be any developments later today. The tribunal is going to communicate via a notice on its webpage in the coming days/weeks to indicate when it will deliver its decision on the admissibility of the case.
There won't be any developments later today. The tribunal is going to communicate via a notice on its webpage in the coming days/weeks to indicate when it will deliver its decision on the admissibility of the case.
September 3, 2025 at 11:35 AM
hey Lisbeth, thanks for the interest in this important case.
There won't be any developments later today. The tribunal is going to communicate via a notice on its webpage in the coming days/weeks to indicate when it will deliver its decision on the admissibility of the case.
There won't be any developments later today. The tribunal is going to communicate via a notice on its webpage in the coming days/weeks to indicate when it will deliver its decision on the admissibility of the case.
40/ And it's a wrap.
The plaintiffs are now exiting the courthouse. Stay tuned for additional information on the case and the decision of the judges in this #ClimateLitigation case.
🌅Let the era of impunity come to an end and rule of law be upheld.
The plaintiffs are now exiting the courthouse. Stay tuned for additional information on the case and the decision of the judges in this #ClimateLitigation case.
🌅Let the era of impunity come to an end and rule of law be upheld.
September 3, 2025 at 9:58 AM
40/ And it's a wrap.
The plaintiffs are now exiting the courthouse. Stay tuned for additional information on the case and the decision of the judges in this #ClimateLitigation case.
🌅Let the era of impunity come to an end and rule of law be upheld.
The plaintiffs are now exiting the courthouse. Stay tuned for additional information on the case and the decision of the judges in this #ClimateLitigation case.
🌅Let the era of impunity come to an end and rule of law be upheld.
39/ This hearing made one thing clear: major polluters can only continue their reckless operations by seeking a licence to operate outside of the law - demanding to be dispensed from norms that apply to every other person.
#MakePollutersPay #LossAndDamage #CallForClimateJustice
#MakePollutersPay #LossAndDamage #CallForClimateJustice
September 3, 2025 at 9:51 AM
39/ This hearing made one thing clear: major polluters can only continue their reckless operations by seeking a licence to operate outside of the law - demanding to be dispensed from norms that apply to every other person.
#MakePollutersPay #LossAndDamage #CallForClimateJustice
#MakePollutersPay #LossAndDamage #CallForClimateJustice
38/ 🙉 🙈 on the other side, the lawyers supporting Holcim combined traditional legal arguments historically used by polluters and already repeatedly dismissed by other courts with direct attacks against NGOs supporting the case.
September 3, 2025 at 9:47 AM
38/ 🙉 🙈 on the other side, the lawyers supporting Holcim combined traditional legal arguments historically used by polluters and already repeatedly dismissed by other courts with direct attacks against NGOs supporting the case.
37/ ⚖️ today, the lawyers supporting the four plaintiffs who traveled from Indonesia to demand justice made a powerful case to the Swiss judges urging them to apply the law as it currently stands and to refuse to grant impunity to climate polluters...
September 3, 2025 at 9:45 AM
37/ ⚖️ today, the lawyers supporting the four plaintiffs who traveled from Indonesia to demand justice made a powerful case to the Swiss judges urging them to apply the law as it currently stands and to refuse to grant impunity to climate polluters...
36/ we have just vacated the room to let the three judges begin their deliberations... let me summarize below some of what we have learned today in this Cantonal Parliament of Zug in this historic hearing in #ClimateLitigation 𝐴𝑠𝑚𝑎𝑛𝑖𝑎 𝑣. 𝐻𝑜𝑙𝑐𝑖𝑚...
September 3, 2025 at 9:38 AM
36/ we have just vacated the room to let the three judges begin their deliberations... let me summarize below some of what we have learned today in this Cantonal Parliament of Zug in this historic hearing in #ClimateLitigation 𝐴𝑠𝑚𝑎𝑛𝑖𝑎 𝑣. 𝐻𝑜𝑙𝑐𝑖𝑚...
35/ In conclusion, the presiding judge concludes this main hearing, indicating that the Court will communicate the timing of its decision on the case's admissibility through a public notice in the coming weeks.
September 3, 2025 at 9:28 AM
35/ In conclusion, the presiding judge concludes this main hearing, indicating that the Court will communicate the timing of its decision on the case's admissibility through a public notice in the coming weeks.
34/ and back... Holcim's legal team wrapped up its argument after having made one last time the tired argument that if Holcim's was to act benevolently and to slash its emissions, other polluters would just replace it (the "I am a better evil" argument)...
September 3, 2025 at 9:25 AM
34/ and back... Holcim's legal team wrapped up its argument after having made one last time the tired argument that if Holcim's was to act benevolently and to slash its emissions, other polluters would just replace it (the "I am a better evil" argument)...
33/ 🐾 Alpine Groundhogs are true hibernators, sleeping deeply for approximately 200 days each year.
🐾 They use loud, shrill whistles to alert their colony to the presence of predators.
🐾 Their large incisors grow continuously, allowing them to process their diet.
📸 Photo credit: Estebandh
🐾 They use loud, shrill whistles to alert their colony to the presence of predators.
🐾 Their large incisors grow continuously, allowing them to process their diet.
📸 Photo credit: Estebandh
September 3, 2025 at 9:24 AM
33/ 🐾 Alpine Groundhogs are true hibernators, sleeping deeply for approximately 200 days each year.
🐾 They use loud, shrill whistles to alert their colony to the presence of predators.
🐾 Their large incisors grow continuously, allowing them to process their diet.
📸 Photo credit: Estebandh
🐾 They use loud, shrill whistles to alert their colony to the presence of predators.
🐾 Their large incisors grow continuously, allowing them to process their diet.
📸 Photo credit: Estebandh
32/ Rather than to summarise the ongoing litany of appalling arguments and to preserve your (and my) sanity, let us turn our attention to fascinating facts concerning Alpine Groundhogs, one of the national symbols of Switzerland...
📸 Photo credit: Niklas Jeromin
📸 Photo credit: Niklas Jeromin
September 3, 2025 at 9:24 AM
32/ Rather than to summarise the ongoing litany of appalling arguments and to preserve your (and my) sanity, let us turn our attention to fascinating facts concerning Alpine Groundhogs, one of the national symbols of Switzerland...
📸 Photo credit: Niklas Jeromin
📸 Photo credit: Niklas Jeromin
31/ When you know the commitment of both authorities to the rule of law and the importance of judicial remedies, one can only hope that the judges will see through the bad faith of these tactics.
September 3, 2025 at 9:09 AM
31/ When you know the commitment of both authorities to the rule of law and the importance of judicial remedies, one can only hope that the judges will see through the bad faith of these tactics.
30/ 🤬 Holcim's legal representative now relies on truncated quotes from the European Court of Human Rights & USA Supreme Court Ruth Bader Ginsburg to support its argument that inadequate governmental action shields polluters from accountability in the context of climate change.
September 3, 2025 at 9:07 AM
30/ 🤬 Holcim's legal representative now relies on truncated quotes from the European Court of Human Rights & USA Supreme Court Ruth Bader Ginsburg to support its argument that inadequate governmental action shields polluters from accountability in the context of climate change.