California Gov. Jerry Brown kept up his assault on climate change Monday, pushing through a law meant to reduce greenhouse-gas emissions from dairy farms and landfills.

One of the main culprits: manure. Per the bill, dairy farmers have to cut methane emissions to 40 percent below 2013 levels by 2030.

"We're protecting people's lungs and their health," Brown said, by stopping "dangerous pollutants."

The state's Air Resources Board can also now regulate bovine flatulence, as long as there are practical ways to reduce the cows' belching and breaking wind. FULL STORY