So dairy farmers are seeking way to reduce them. A lot of government money gets spent at US, Davis and they come up with a bright idea – feed them seaweed!
The idea that seaweed might contribute to methane reduction in cows first came to light last year in Australia. Laboratory tests there indicated that cattle feed containing 2 percent seaweed could slash methane emissions by 99 percent.
To read the rest, shaking your head in wonderment, go to Seaweed may reduce cow burps and methane emissions | DW | 26.05.2018