New research suggests that a third of the total productivity in the Arctic Ocean is supported by nutrients supplied by river discharge and coastal erosion, highlighting their crucial role for the marine ecosystem.

The world is not on track to keep warming below 1.5°C, and immediate action is needed, according to the 4C Carbon Outlook, just released.

4C researchers present the latest climate research at the 26th Conference of the Parties (COP26) in support of the need for urgent climate action.

The increase in CO₂-induced global warming will only stop when humans stop adding CO₂ to the atmosphere, according to a recent report published by the 4C project. The report discusses the latest science on zero CO₂ emissions, and touches on the importance of zero vs. net-zero emissions for policymaking.

Four new datasets developed as part of 4C project are now available.

The Southern Ocean is the largest oceanic sink for human-made carbon dioxide. New research supported by 4C reduces the uncertainty about how much human-made carbon dioxide can be absorbed by the Southern Ocean, by 50 percent.

The global carbon cycle involves complex processes and interactions within the Earth system, and understanding these is crucial for climate change mitigation and adaptation. This classroom explains the most important aspects of the carbon cycle and how it is affected by changes in CO₂ concentrations.