BBC News: Climate change: Can an enormous seaweed farm help curb it?

by David Reid & Justin Rowlatt; BBC News Climate and Science; 16 October 2022

“A scientist from Seafields measures the depth on beds of floating Sargassum. Imagine a huge seaweed farm the size of Croatia floating in the South Atlantic between Africa and South America. Spinning in a natural ocean eddy, it sucks a billion tonnes of carbon out of the atmosphere every year and sinks it to the ocean floor out of harm’s way. Far-fetched? Maybe. But a British businessman plans to have this up and running by 2026.”