Markus W. Gehring
EU & International Sustainable Development Lawyer; Professor of European & International Law @cambridgelaw.bsky.social Deputy Proctor @cam.ac.uk Fellow @eulegalstudies.bsky.social @hugheshall.bsky.social @lauterpachtcentre.bsky.social @cisdl.bsky.social.
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- Thank you @verfassungsblog.de for publishing our thoughts.
- Such a cool event TODAY - open to all. Join in person or online.
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- Such a wonderful event next Monday 9 Feb @lauterpachtcentre.bsky.social @cambridgelaw.bsky.social: A Conversation with Prof Philippe Sands KC www.lcil.cam.ac.uk/press/events...
- The five international court and tribunal decisions have embedded climate change law in the fabric of international law and reduced space for normative contestation says @kingscollegelondon.bsky.social and @esil-sedi.bsky.social’s Prof Christian Tams at the ITLOS Climate Conference
- Has the US breached international law by having withdrawn from the Paris Agreement last Tuesday? Perhaps not but by not cooperating and not addressing climate change it certainly violates customary international law as determined by 2025 ICJ AO. (US withdrawal took effect on 27 Jan 2026).
- The advisory proceedings were characterised by enhanced legitimacy through broad participation and contribute significantly to the international rule of law says Prof Laurence Boisson de Chazournes at the ITLOS Climate Conference
- Causation of harm does not have to be proven to establish breach of an international obligation if compensation is not the aim. This declaration which might still be useful for the applicant state says Dr Callisto Harris at the ITLOS
- An omission of a State may well be a cause of significant harm even if that state cause not all but a substantial part of the harm says @uvalawschool.bsky.social’s Prof André Nollkamper in his review of the ICJ AO at the ITLOS Climate Conference.
- Attribution science has greatly enhanced our understanding of international climate responsibility says Prof Patricia Galvao Teles at the ITLOS.
- Holding warming to 1.5c requires net negative emissions not just net-zero which would also future proof climate law over the long term says @iucnwcel.bsky.social’s Prof Christina Voigt at the ITLOS Climate Conference.
- The failure of the COPs lead to the creation of COSIS and its founding at COP26 says @src-rsc.bsky.social Fellow Prof Payam Akhavan at the ITLOS Conference on Climate Change. @masseycollege.bsky.social
- The ITLOS COSIS AO is a landmark decision for its comprehensive analysis of UNCLOS and other international law says @uni-kiel.de’s Prof. Dr. Nele Matz-Lück (Walther-Schücking-Institut für Internationales Recht)
- The irony is shocking 😮
- Daily Express: NOW YOU MUST GIVE BRITAIN A PROPER BREXIT #TomorrowsPapersToday
- Europe’s Climate Crisis Is a Rule-of-Law Crisis says @uvalawschool.bsky.social Prof Christina Eckes in her @verfassungsblog.de comment on current EU climate developments. verfassungsblog.de/europes-clim...
- Due diligence obligations apply to both public and private actors - the standard for due diligence is stringent due to the science of climate change says @nus-cil.bsky.social Director Prof Nulifer Oral quoting both the ITLOS and the ICJ AOs.
- Very cool new climate litigation podcast from @uvalawschool.bsky.social hosted by Prof Christina Eckes. open.spotify.com/episode/0CGD...
- Inspiring and thought-provoking event at the ITLOS in Hamburg on climate change with judges from ITLOS, ICJ, @echr.coe.int @corteidh.bsky.social @eftasecretariat.bsky.social Court.
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- Such an amazing opportunity - warmly recommended.
- Thank you again to Anne and Saida for the kind invitation to this excellent EXTREL Jean Monnet Conference @univ-paris8.fr - looking forward to sharing with @leaweimann.bsky.social our thoughts on the Rule of Law in External Relations through the Lens of Sustainable Development.
- Join us in person @cambridgelaw.bsky.social or online - open to all.
- New important Grand Chamber @eucourtofjustice.bsky.social decision forcefully reaffirming PFOS against Hungary- perhaps stronger action by @ec.europa.eu Judgment, 27/01/2026, Commission v Hungary (Reclassification du cannabis), C-271/23, ECLI:EU:C:2026:45 infocuria.curia.europa.eu/tabs/jurispr...
- International law can be confusing but do not worry, there is a new Spotify podcast series for the amazing @lauterpachtcentre.bsky.social Friday lectures @cambridgelaw.bsky.social - give it a listen open.spotify.com/show/4liuF30...
- Interested in international law in the UK? Do not miss the London Conference with contributions from the UK FCDO and @biicl.bsky.social thelondonconference.org
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- Delighted to contribute to this Conference with the amazing @leaweimann.bsky.social on the EU rule of law organised by the wonderful Prof Saïda El Boudouhi @univ-paris8.fr, CRJP8 and Prof Anne Thies @glasgow.ac.uk, School of Law. Thank you to @cambridgelaw.bsky.social and @hugheshall.bsky.social.
- Such as fantastic group of @lauterpachtcentre.bsky.social visitors - a warm welcome to @cambridgelaw.bsky.social and @cam.ac.uk.
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- Time for the world to come together and protect South Korea. The original Trump tariffs were adopted in complete violation of international law. These new tariffs are just as much a breach of international law. Donald Trump to increase tariffs on South Korea to 25% www.ft.com/content/9982...
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- Fantastic event by our wonderful colleague Dr Maria Varaki @warstudieskcl.bsky.social @kingscollegelondon.bsky.social - open to all online. www.kcl.ac.uk/events/esc-r...
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- Just to make it crystal clear - threatening 100% tariffs on your closest neighbouring country because that country made a trade deal with a third country, is breach of international law. Unless we start calling the utter lawlessness out, they will just continue. news.sky.com/story/trump-...
- Warmest congratulations to all @cambridgelaw.bsky.social on @timeshighered.bsky.social rank as 3rd in the world for law and 1st in the UK ranking.
- Reposted by Markus W. GehringGlobal challenges continue to put a spotlight on the realtionship between the UK & EU 🇬🇧🇪🇺 Join our experts @anandmenon.bsky.social, @jreland.bsky.social, @jannikewachowiak.bsky.social and Sir Ivan Rogers as they discuss the year ahead in UK-EU relations 📆 Fri 30 Jan 🔗 ukandeu.ac.uk/events/ukice...
- You guessed it, this also violates the US' international obligations. Utter lawlessness.
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- Fascinating new #Brexitlaw decision @eucourtofjustice.bsky.social - no direct effect of most EU-UK TCA: EU institutions ... are free to agree with the third States what effect the provisions of the agreement are to have in the internal legal order. infocuria.curia.europa.eu/tabs/documen...
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- Very thoughtful blog by our @eui-eu.bsky.social @cambridgelaw.bsky.social colleague Prof Sarah Nouwen.
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- Urgent time for @ec.europa.eu to start infringement proceedings against Hungary and Bulgaria for participating in an international organisation completely incompatible with EU and international law. www.cnbc.com/2026/01/22/w...
- Just before you jump to conclusions about US soveign basis in Greenland, please do not forget the Chagos case and the ius cogens right of self-determination. See this excellent article by Nasia Hadjigeorgiou in EJIL on Decolonizing Cyprus 60 Years after Independence academic.oup.com/ejil/article...
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- Is creating sovereign US bases in Greenland legal? Doubtful. As as Nasia Hadjigeorgiou in @mpil.de Encyclopaedia explains: 'There is considerable ambiguity... as to the legal nature of the SBA.' Creating them under threat of force definitely violates international law. www.bbc.co.uk/news/article...
- Perhaps it is time to think outside the box and have a referendum in Greenland too? Perhaps Greenland could rejoin the EU and when it becomes fully independent, automatically be a new Member State?
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- Quite a title - that's enough Donald...
- Thank you @financialtimes.com @soumayakeynes.ft.com for calling the attempt to buy a country repugnant and nauseating. I share the feeling. www.ft.com/content/3fb7...
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- Some say they need extra territory for national security reasons. The UK's DEFRA by contrast sees biodiversity loss as a national security issue. I greatly prefer the latter. www.gov.uk/government/p...
- Quite....
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- Admitting yet another violation of international law. Perhaps all countries should commission legal opinions on the international legal responsibility by the USA.
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- Iceland is also not for sale...
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- Another day and so many international law violations in the speech by the US Head of State - there is no right or duty to negotiate. It will be up to Denmark and Greenland to decide if they even wish to talk. Trump Assails Europe and Demands Control of Greenland www.nytimes.com/live/2026/01...
- The @eucourtofjustice.bsky.social will probably not issue a negative opinion, but I doubt it would decide under rapid procedure. The EU-Mercosur balancing mechanism will probably be seen as compatible with EU law. It is just the smaller sibling of more far-reaching mechanisms in the TCA and WA.
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- Such a tight vote on EU-Mercosur: @europarl.europa.eu MEPs just voted to request a legal opinion on EMCA and iTA conformity with the EU treaties www.europarl.europa.eu/news/en/pres...
- Very interesting @cam.ac.uk event today by the Centre for Geopolitics: After the seizure of Maduro: What it means for Venezuela, regional security, and the global order With @chathamhouse.org's Chris Sabatini 📅Today! 17:30 🗺️Bateman @caiuscollege.bsky.social www.cfg.cam.ac.uk/events/after...
