California is taking its fight against
global warming to the farm. The nation’s leading agricultural state is now
targeting greenhouse gases produced by dairy cows and other livestock. Despite strong
opposition from farmers, Governor Jerry Brown signed legislation in September
that for the first time regulates heat-trapping gases from livestock operations
and landfills. Cattle and other farm animals are major sources of methane, a
greenhouse gas many times more potent than carbon dioxide as a heat-trapping
gas. Methane is released when they belch, pass gas and make manure. The new law
requires dairies and other livestock operations to reduce methane emissions 40%
below 2013 levels by 2030. Officials are developing the regulations which take
effect in 2024.
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