Doesn't the account in the article run counter to the narrative that cows are massive greenhouse gas producers? Is there an alternative to grazing that would not require cows?
That said, even if grazing does result in a net capture if carbon, that doesn't mean that the problems associated with eating beef like we do go away. There's not enough pasture to produce the amounts of meat factory farming puts out.
https://www.independent.co.uk/environment/cows-seaweed-metha...