> Feeding cattle grass will reduce the methane just as much as seaweed, I bet. From the article, it only takes a few percent of seaweed in the cow diet to redu

> Feeding cattle grass will reduce the methane just as much as seaweed, I bet. From the article, it only takes a few percent of seaweed in the cow diet to reduce methane. I'd guess the same doesn't hold for grass. Cows that get to go into a pasture probably get a few percent of grass.