Summary:

- The article discusses how industrial fishing is damaging the world's greatest carbon sink - the ocean's seabed. Seabed ecosystems like coral reefs, mangroves, and seagrass beds play a crucial role in absorbing and storing carbon, but they are being destroyed by bottom trawling and other destructive fishing practices.

- The article highlights that the ocean's seabed is the world's largest carbon sink, storing more carbon than all the world's forests combined. However, industrial fishing is degrading these vital ecosystems, releasing stored carbon back into the atmosphere and contributing to climate change.

- The article calls for a shift towards more sustainable fishing practices, such as banning bottom trawling in sensitive areas and expanding protected marine areas, to safeguard the ocean's ability to mitigate climate change through carbon sequestration.