As COP27 approaches, Callum Roberts - Professor of Marine Conservation at the University of Exeter - talks about the Convex Seascape Survey, an ambitious five-year scientific research programme to fathom out how the ocean could be a vital asset in slowing planetary warming.

The seabed is the ultimate sink for carbon emissions but has been overlooked and undervalued because of insufficient and inconclusive data.

Working with BLUE Marine Foundation, scientists will gather and analyse accurate data to quantify how healthy seascapes thriving with life can absorb carbon, in a project which has never been more critical.