Ocean negative carbon emissions: A new UN Decade program
The logo of the Global ONCE UN Decade program
The Paris Agreement sets the target to limit increases in mean global temperature to well below 2°C, preferably to 1.5°C, compared with preindustrial levels. Carbon neutrality is the preferred route to reach this target.1 This requires primarily a reduction of CO2 emissions to the atmosphere but also an increase of carbon sinks or negative emissions (absorption of atmospheric CO2). The ocean is the largest active carbon pool on Earth, acting as the key regulator to global climate change, and thus has great potential for carbon negative emission.
