Is seaweed the solution to agriculture’s methane problem?

Ian Caldwell Fisheries & Aquaculture

Is seaweed the solution to agriculture’s methane problem?
Jean-Pascal Quod, CC BY-SA 3.0 , via Wikimedia Commons

Livestock have been eating seaweed for centuries in coastal areas, and using seaweed as a feed additive for extra protein and improved animal health is nothing new. However, adding seaweed to animals’ diet specifically to reduce their methane production is a relatively new idea.

Adding 0.2% of the seaweed Asparagopsis has been proven to reduce methane production in cows with 98%, simultaneously improving weight gain by 42%.

Sounds great. Is seaweed the solution to agriculture’s methane problem, or is there a catch? What are the threats and opportunities to the business model? And which companies are trying to take advantage?

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