Supplementing the diets of grazing beef cows with seaweed in pellet form could cut their methane emissions by almost 40 percent, a new study has found.

The seaweed pellets led to this plunge in emissions without affecting the health or weight of the cows, according to the study, published on Monday in the Proceedings of the National Academy of Sciences.

Livestock are responsible for 14.5 percent of global greenhouse gas emissions, with the largest chunk stemming from the methane released by cattle when they burp, the study authors noted.

Grazing cows produce more methane than their feedlot or dairy peers........

© The Hill