Legal controversy surrounds the largest ever “iron-seeding” experiment to geoengineer the climate as it sets sail from South Africa.
Within weeks, a team led by of the Alfred Wegner Institute in Bremerhaven, Germany, hopes to dump 20 tonnes of ferrous sulphate into the Southern Ocean. The aim is to trigger a plankton bloom that will suck carbon out of the air and lock it up at the bottom of the ocean.
After a company called Planktos sparked controversy in 2007 with plans to dump iron filings in the Galapagos, both the (IMO) and the …
