An Unusual Snack for Cows, a Powerful Fix for Climate

One of the most powerful weapons in the fight against climate change is washing up on shorelines around the world, unnoticed by most beachgoers. It’s seaweed.  In lab tests and field trials, adding a small proportion of this seaweed to a cow’s daily feed — about 0.2 of a percent of the total feed intake in a recent study — can reduce the amount of methane by 98%. That’s a stunning drop when most existing solutions cut methane by about 20 or 30%. - Seattle Times