[Shoh3pif]

From the article:

> All in all, super-powered seaweeds could sequester around 173 million metric tons (190 million tons) of carbon each year, about as much as the annual emissions of the state of New York.

It's not that much in comparison to the emissions of the entire industrialized world.

Every bit helps of course, but it's not a magical solution to our problems.

[DennisP]

That's how much is happening naturally, with a low percentage of seaweed sinking to the depths. Large-scale farming operations could do a lot more.

[Shoh3pif]

Intensive farming only happens when the material is used in a profitable way. Growing things only to dump them in the oceans is only profitable with subsidies or carbon taxes.

Extensive farming would likely have the natural rate of sequestration.