Feeding Cows Seaweed Could Cut Methane Emissions and Diversify Maine’s Coastal Economy, but Can It Scale?

Ummm....that article says there was still a drastic methane cut, it was just ~20% after accounting for the longer life of the cattle due to unpredicted slower mass gain with the supplement. They had hoped for no changes to development of the cattle and around 80% or higher emissions cut. Article also makes it clear there were a lot of confounders in how they measured methane in the trial so this is realistically a great starting point and a strong show of the value proposition. Moreover, seaweed is good for water ecosystems so cultivating it at scale would be another value add. I don't eat farmed meat, but I don't expect that to ever be standard across the human species and this is certainly a strong improvement. You don't seem to understand what greenwashing is.