Iceland's Climate Minister, Johann Pall Johannsson, has declared the potential collapse of the Atlantic Meridional Overturning Circulation (AMOC) a national security risk and an existential threat. This move allows the government to strategize for worst-case scenarios, as the AMOC's collapse could trigger a modern-day ice age, drastically changing Northern Europe's climate. The AMOC brings warm water from the tropics northward, keeping Europe's winters mild. However, rising temperatures and melting Arctic ice are causing a potential disruption to this current's flow. The collapse could lead to far more snow and ice in Northern Europe, as well as destabilize rainfall patterns in Africa, India, and South America, and accelerate warming in Antarctica. Scientists warn that the world is underestimating the threat of an AMOC collapse, which could happen within the next few decades. The Nordic Council of Ministers funded a workshop with experts to assess societal impacts, and many countries are funding more research and adapting their climate plans accordingly. Iceland's ministries will be on alert, coordinating a response, and assessing further research and policies needed. The risks span energy, food security, infrastructure, and international transportation. The pace of warming and rising greenhouse gas emissions are prompting Iceland to take action, as the AMOC's collapse could severely impact marine transport, agriculture, and fisheries, which are central to the country's economy and food systems.
