Negative carbon emissions are a promising approach to limiting global warming to 2.0°C or 1.5°C by the end of the century, as per the Paris Agreement. The ocean can store significant amounts of carbon and has absorbed about 25% of CO2 produced by fossil fuel combustion and cement production since the industrial revolution. Increasing ocean carbon sinks through anthropogenic processes (Ocean Negative Carbon Emissions, ONCE) could contribute to carbon neutrality if mechanisms and processes are understood. The Global-ONCE Programme, an international network of projects and experts, including PICES, ICES and SCOR, coordinates research on ocean-based solutions for climate mitigation.
The next years are crucial for climate action, and securing mitigation and adaptation to climate change is urgent. The ocean can store globally significant amounts of CO2, but approaches to enhance carbon sequestration require development and evaluation. The Global-ONCE Programme aims to provide data, knowledge, and best practice to enable society to develop mitigation and adaptation approaches to climate change.
The programme also contributes to several Ocean Decade Challenges, including Challenge 2: Protecting and restoring ecosystems and biodiversity, Challenge 5: Unlocking ocean-based solutions to climate change, and Challenge 10: Changing humanity’s relationship with the ocean.
– Global-ONCE Programme will develop an international network of instrumented marine field stations and research facilities, co-design and carry out interdisciplinary collaborative research, and develop an evaluation framework for mitigation and adaptation approaches.
Coordinate capacity building and promote equitable ocean governance of adaptation and mitigation approaches by engaging local, regional, and global industries, decision makers, and legislators.