Seaweed’s high CO2 uptake means that it is contributing significantly to climate rescue.
Still, Sargassum, a brown algae that spreads rapidly (see the 5,000 mile long slick in the Atlantic) has unwanted side effects. It deprives marine life of vital light and spreads harmful bacteria on beaches.
Enter a Glasgow startup which is working on a robot to scoop the weed from the water’s surface and drop it below 135 metres. At this depth, it loses the ability to swim and sinks to the bottom of the ocean.
Water fleas could also be useful in the fight against unwanted algae.