The report titled A Nordic Perspective on AMOC Tipping explores the current scientific understanding of the potential collapse of the Atlantic Meridional Overturning Circulation (AMOC) and outlines essential policy recommendations.
Published on February 5, 2026, on the Nordic Council’s website, the report can be accessed at: https://pub.norden.org/temanord2026-504.
The Atlantic Meridional Overturning Circulation (AMOC) plays a vital role in transporting heat to the North Atlantic, contributing to the relatively temperate climate of the Nordic nations. However, climate change is inadvertently slowing the AMOC, and while a complete shutdown is unlikely, it could occur at lower levels of global warming than previously thought. Such a shift would not only cool Northern Europe but could also disrupt food production, energy systems, and livelihoods, even as the rest of the globe continues to heat.
“The AMOC is a critical component of the climate system in the Nordic region,” explains Aleksi Nummelin, Research Professor at the Finnish Meteorological Institute. “While the future of the AMOC remains uncertain, the potential for its rapid weakening or collapse is a risk we must take seriously. This report consolidates current scientific knowledge and emphasizes practical steps for mitigation, monitoring, and preparedness.”
Key Messages from the Report
- It is essential to advocate for robust mitigation efforts aimed at achieving decarbonization and net-negative emission targets. Until we gain a clearer understanding of the likelihood of the AMOC crossing a critical threshold, a precautionary approach must be adopted. The risk of AMOC collapse escalates with any additional warming or extended periods exceeding a 1.5°C rise. Safeguarding against further warming is therefore imperative.
- Long-term funding is crucial for maintaining key observational networks and developing an early warning system for the AMOC. This system should seamlessly integrate Earth observations with model simulations, embedding itself in policy-making processes to enable swift responses. The new EU Ocean Act presents opportunities to coordinate these efforts effectively.
- While the future of the AMOC remains uncertain, its collapse could have severe and differing impacts on the Nordic countries compared to other regions. Developing adaptable climate change strategies is crucial to address the potential consequences of AMOC weakening, ensuring resilience across varied future scenarios. Furthermore, the possibility of AMOC’s collapse must be recognized as a genuine threat, warranting comprehensive risk management frameworks that span all levels of governance.
This report reflects a collaborative effort combining Nordic and international expertise.
Initiated during the Nordic Council of Ministers’ ‘Nordic Tipping Week’ workshop held from October 21-24, 2025, in Helsinki and Rovaniemi, Finland, this report embodies the theme of resilience emphasized during Finland’s Council Presidency. The workshop convened scientists from various fields, including physical oceanography and social sciences, to address the complexities of AMOC dynamics and its broader implications.
Coordinated by the Finnish Meteorological Institute, the report’s development drew upon insights from multiple Nordic and international research institutions. The initiative was partly inspired by an Open Letter from climate scientists to the Nordic Council of Ministers in 2024, highlighting that the risks associated with a potential AMOC collapse might have been underestimated.
