IPCC Projections & Sea Level Rise

Want to know more about the IPCC projections & planning for sea level rise

This event will present key statements on the sea-level rise from the Working Group I and II IPCC reports, including adaptation challenges. The authors of the report will present the latest projections, where to find the data and how to interpret it, and how practitioners can understand low-likelihood/high-impact sea-level rise projections and their use in adaptation. The event will conclude with the presentation of the joint policy brief from European Projects PROTECT, CoCliCo and SCORE, “When will a 2-metre rise in sea level occur, and how might we adapt?”

This event will be particularly useful for people working in coastal adaptation, integrated coastal zone management or at the interface between science and society, from journalists to science communicators.

PROTECT webinar: Monday 30 January – 3-5 pm CET

Speakers: Bob Kopp from Rutgers UniversityMarjolijn Haasnoot from Deltares and Utrecht UniversityKarina VON SCHUCKMANN from Mercator Ocean InternationalGonéri Le Cozannet from BRGMRoshanka Ranasinghe from Deltares, IHE Delft Institute for Water Education and University of Twente, Gaël Durand, Robert Nicholls from University of East AngliaA K M Saiful Islam from Drexel University,and Elham Ali from Suez University(TBC).

This event is free by registering in advance:

If you know someone working on sea level rise and coastal risk, tag them in the comments! It’s likely this event will be of interest to them. 

Information on the event: https://lnkd.in/ect–Aq6 

The policy brief: https://protect-slr.eu/policy-briefs/ 

Note d’orientation : à quelle échéance l’élévation du niveau de la mer dépassera-t-elle 2 mètres ? Comment s’y adapter ?

Tôt ou tard, l’élévation du niveau de la mer dépassera 2 mètres. Cet événement interviendra dans une fenêtre temporelle allant du prochain siècle à 2000 ans selon les émissions de gaz à effet de serre et la vitesse de fonte des calottes de glace polaires. Ceci modifiera drastiquement les côtes européennes.

L’Europe et les États peuvent dès aujourd’hui envisager l’adaptation côtière comme une démarche continue impliquant des actions à court terme, une planification à long terme et une réflexion stratégique.

Trois actions urgentes sont requises pour limiter les pertes, les dommages et limiter les effets de verrouillage des décisions actuelles:

  1. Une réduction massive et immédiate des émissions de gaz à effets de serre, afin de limiter la vitesse et l’amplitude de l’élévation du niveau de la mer, et ainsi donner du temps à l’adaptation.
  2. Initier une adaptation à plusieurs mètres d’élévation du niveau de la mer, en particulier en préparant les territoires à risques, en identifiant les enjeux de gestion, en effectuant un suivi de la démarche continue de transformation des zones côtières et en mettant en œuvre des options présentant des co-bénéfices immédiats importants. 
  3. Un soutien à la recherche et aux services climatiques pour réduire les incertitudes des projections d’élévation du niveau de la mer, pour évaluer les risques et lesoptions d’adaptation associées et fournir une information utile aux acteurs de l’adaptation.

Le climat se réchauffe rapidement. L’élévation du niveau de la mer accélère. L’adaptation côtière prend du temps. Il est urgent d’agir dès maintenant.

Cette note d’orientation est soutenue par les projets PROTECT, CoCliCo et SCORE, qui ont reçu des financements du programme de recherche et d’innovation Horizon2020 de l’Union Européenne (Conventions de subvention n°869304, 101003598 et101003534).  Elle représente la seule vue des auteurs et non une position officielle dela Commission Européenne ou de leurs organismes, qui ne sont pas responsables del’information qu’elle contient.

When will a 2 meter rise in sea level occur, and how might we adapt?

This is a joint policy brief between the PROTECT, CoCliCo and SCORE projects. Each has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement numbers 869304, 101003598 and 101003534.

Key Messages

2 meters of sea-level rise can not be realistically avoided sooner or later. This will fundamentally change European coastal zones in the decades to centuries to come.

Europe and National States can recognize that coastal adaptation is an ongoing process that involves short-term actions, long-term planning and strategic thinking.

Three actions are urgently needed to limit losses, damages and lock-ins:

  1. Massive and immediate reductions of greenhouse gas emissions in order to slow down sea-level rise, limit the amplitude of sea-level rise in the long term, thus giving more time and options for coastal adaptation.
  2. Engagement into adaptation planning for multiple meters of sea-level rise, including preparing for adaptation, identifying challenges and options, implementing and monitoring.
  3. Support to science and climate service development to reduce uncertainties in future sea-level rise, assess risks and associated adaptation options and provide useable information and climate services to coastal adaptation stakeholders

The climate is warming quickly, sea level rise is accelerating and coastal adaptation takes time. The imperative to act now is clear.


This material reflects the sole author’s view and does not represents an official position of their institutes or of the European Commission, which are not responsible for any use that may be made of the information it contains.

Lead authors: Gonéri Le Cozannet (BRGM), Gaël Durand (CNRS), Robert Nicholls (University of East Anglia

Extended drafting team & Figures: Aimée Slangen (NIOZ), Daniel Lincke (GCF), Anne Chapuis (CNRS)

Contributions & Reviews: Adina Creugny, Tamsin Edwards, Elena Marie Enseñado, Salem Gharbia, Heiko Goelzer, Geronimo Gussmann, Marjolijn Haasnoot, Klaus Keller, Emilio Laino, Daniel Lincke, Arjen Luijendijk, Angélique Melet, Luís Campos Rodrigues, Jeremy Rohmer, Paul Sayers, Aimée Slangen, Mar Riera Spiegelhader, Rémi Thiéblemont, Fiona Turner, Roderik Van De Wal

Editing: Gus Williams (Guerilla Creatives), Anne Chapuis (CNRS).

Video Release

The consequences of sea-level rise and coastal flooding cannot be underestimated. With 7% of Europe’s population living in highly exposed coastal areas, we need to plan now to protect lives and economies in the future. 

Authoritative data, based on the best available science, is needed now to support the decisions being made. All coastal European countries need access to accurate data and models and the ability to translate science into understandable, actionable knowledge to inform decision making:

  • Identifying priorities
  • Observing past trends
  • Exploring alternatives
  • Projecting the future

CoCliCo is a comprehensive system of coastal climate core services that is being developed to answer this pressing need. 

It is a Pan-European web-based platform that will allow access to guidance to help inform policies and investments to ensure better adaptation to the implications of coastal climate change. It forms part of a cluster of European funded projects addressing coastal adaptation, creating an “ecosystem” of climate services. 

Watch and share our new video now!

IPCC WG2 Climate Report

The IPCC WG2 Climate Report published today is the most precise and up to date global assessment of impacts, vulnerability and adaptation to climate change available at this time.  270 authors from 67 countries contributed to this assessment. 

Sea level rise represents a major threat for coastal communities, infrastructure and ecosystems during the 21st century and beyond. Thus, adaptation to sea level rise is one of the challenges addressed in this report. 

The sea-level projections delivered in July 2021 by WG1 are a major step forward. These projections are extended from 2100 to 2150 and they provide a quantitative estimate of a low-likelihood / high impact sea-level rise involving large ice mass losses in Antarctica and Greenland. Our sister project Protect Slr contributed to this assessment through new projections of ice mass losses.

Authoritative climate services will be needed to support adaptation: CoCliCo Services aims at developing a core service for coastal adaptation to sea level rise in Europe, in close cooperation with Copernicus Marine Service.

Adaptation alone will not be sufficient: urgent mitigation of climate change is needed to reduce sea level rise rates and give more time for adaptation planning and implementation, as well as to coastal ecosystems to migrate landward.

CoCliCo Services Stakeholders Workshop

By attending this workhop, we can collectively co-design CoCliCo