A couple of months ago I reviewed the book The Seaweed Revolution, which describes the mighty potential of ocean farming – something I’ve been talking about for several years now. One of the things the book points out is that seaweed farming is well established in certain countries, and almost completely unheard of in many others.
China, Indonesia, South Korea and other parts of Asia farm seaweed, in some cases with mechanised processes. In the whole of the West it is harvested wild. Outside of Asia, just one percent of seaweed is farmed. “Westerners have remained gatherers at sea,” says Vincent Doumeizel.
As this graph from a recent World Bank report shows, a small handful of places have embraced the idea of ocean farming. China and Indonesia are responsible for almost all the growth in recent years, with South Korea and the Philippines making up the remainder. The whole of the rest of the world is that tiny purple sliver at the top of that graph – ie not really involved.
I’ve written before about just how useful seaweed is, and how it uses no land or fresh water, and no chemicals. There’s a huge opportunity here, and not many have recognised it.
Britain is taking its first steps into ocean farming, including the first seaweed farm located on a wind farm. We have some catching up to do, but this is a major growth industry to keep an eye on.


It is surprising to learn how underutilized seaweed is in the Western world despite its potential benefits for both the environment and our diets. Seaweed farming has been a staple in many Asian countries for centuries, offering sustainable food sources and various applications. Embracing the seaweed revolution in the West could not only diversify our diets with nutritious options but also provide an eco-friendly alternative to some of our resource-intensive industries. It is a reminder of the importance of exploring traditional practices and integrating them into modern sustainability efforts.
Exactly, and it’s our loss if we miss this particular opportunity.