The Atlantic Meridional Overturning Circulation (AMOC) is a vast system of ocean currents that plays a crucial role in regulating the global climate, and yet, it is under threat. The AMOC is a vital component of our planet's climate system, and its weakening or collapse could have catastrophic consequences for Europe and the world. The AMOC is responsible for moving heat from the south to the north in the Atlantic Ocean, and its changes can impact food security, coastal flooding, storms, energy demand, migration, infrastructure planning, and more. The current climate change is already causing the AMOC to weaken, and there is a risk that it could collapse, leading to a 10-fold increase in the rate of climate change in Europe. This is a stark reminder of the urgent need for sustained AMOC monitoring and understanding.
The AMOC monitoring is currently at risk due to funding cuts and the potential discontinuation of critical observing initiatives. The Trump administration has proposed budget cuts to NASA, NOAA, and NSF, which provide about 50% of the total AMOC monitoring budget. This is a concerning development, as the AMOC monitoring is essential for understanding the future of our climate and implementing adaptive strategies to reduce financial loss and impact on human lives. The recent assessment has confirmed that funding issues have already reduced AMOC observing capabilities, and several monitoring initiatives are at risk of being defunded.
The AMOC monitoring is a benchmark for climate models and has critically improved our understanding of the AMOC. However, the lack of long-term observations and the scarcity of data are hampering our ability to understand the AMOC and its future. The AMOC monitoring began only two decades ago, and yet, it is already under threat. The cost of all AMOC monitoring adds up to about €25 million a year, which is a small price to pay for maintaining one of the world's most important climate monitoring systems.
The AMOC monitoring is not just an academic pursuit; it is an urgent, global priority. The EU, the UK, and other international partners must step up and collaborate to assure long-term continuation of AMOC monitoring. The recently launched European OceanEye initiative is a great incentive to continue AMOC observations, but it is not enough. We need a robust, continuous, and open-access AMOC monitoring program to provide the knowledge to build a safer and more resilient world.
In my opinion, the AMOC monitoring is a critical component of our understanding of the climate system, and its weakening or collapse could have devastating consequences. We must act now to secure the long-term continuation of AMOC monitoring, and the cost is a small price to pay for the safety and resilience of our planet. The AMOC monitoring is not just a scientific pursuit; it is a global responsibility, and we must work together to protect our future.
