New Scientist: Stopping the underwater carbon emissions time bomb could require widespread seagrass transplantation. Seagrass is up to 35 times more efficient at sequestering carbon than rainforests, and stores it for millennia in the sediment below. But over the past century 29 per cent of global seagrass has been destroyed and as a result it has been estimated that it is releasing carbon at a rate similar to the emissions of Australia and the UK combined. Now an analysis of a seagrass disturbance shows that...