The oceans absorb 30 % of our emissions, driven by a giant carbon pump. Tiny marine animals are key to addressing their climate impacts

The ocean contains 60 times more carbon than the atmosphere and absorbs nearly 30 % of carbon dioxide (CO₂) emissions from human activity. This means that the ocean is key to understanding the global carbon cycle and thus our future climate. The Intergovernmental Panel on Climate Change (IPCC) uses Earth System Models to project climate change. These projections inform critical political, social and technological decisions. However, if we cannot accurately model the marine carbon cycle, then we cannot truly understand how Earth's climate will respond to different emission scenarios. ( Tyler Rohr, University of Tasmania, Anthony Richardson, The University of Queensland, Elizabeth Shadwick, CSIRO)

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