Cow farts can now be regulated in California

Cow farts can now be regulated in California

In this Aug. 1, 2005, file photo, a pair of Holstein dairy cows are seen in San Joaquin County near Thornton, Calif.

In this Aug. 1, 2005, file photo, a pair of Holstein dairy cows are seen in San Joaquin County near Thornton, Calif.  (AP Photo/Rich Pedroncelli,File)

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.