Greenhouse emissions from beef cattle are dramatically reduced through adding seaweed to feed, says study

Methane emissions from beef cattle could be reduced by as much as 82% by adding seaweed to the cows' diet, according to a study by scientists at the University of California, Davis (UC Davis).

The effectiveness of this does not diminish with repeated applications. The use of seaweed to reduce methane emissions is significant because agriculture accounts for 10% of greenhouse gas emissions in the US, half of which is connected to cows and other ruminant animals.

The study was done by UC Davis through a collaboration with the Australian Commonwealth Scientific and Industrial Research Organisation, the James Cook University in northern Australia, Meat and Livestock Australia, and Blue Ocean Barns (a startup that sources seaweed-based additives).

News article - Select Science