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, Gov. 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. "If we can reduce emissions of methane, we can really help to slow global warming," said Ryan McCarthy, a science advisor for the California Air Resources Board, which is drawing up rules to implement the new law. Livestock are responsible for 14.5 per cent of human-induced greenhouse gas emissions, with beef and dairy production accounting for the bulk of it, according to a 2013 United Nations report. Since the passage of its landmark global warming law in 2006, California has been reducing carbon emissions from cars, trucks, homes and factories, while boosting production of renewable energy. In the nation's largest milk-producing state, the new law requires dairies and other livestock operations to reduce methane emissions 40 percent below 2013 levels by 2030.
State officials are developing the regulations, which take effect in 2024. "We expect that this package ... And everything we're doing on climate, does show an effective model forward for others," McCarthy said. But dairy farmers say the new regulations will drive up costs when they're already struggling with five years of drought, low milk prices and rising labor costs. They're also concerned about a newly signed law that will boost overtime pay for farmworkers. "It just makes it more challenging. We're continuing to lose dairies. Dairies are moving out of state to places where these costs don't exist," said Paul Sousa, director of environmental services for Western United Dairymen. The dairy industry could be forced to move production to states and countries with fewer regulations, leading to higher emissions globally, Sousa said. "We think it's very foolish for the state of California to be taking this position," said Rob Vandenheuvel, general manager for the Milk Producers Council. "A single state like California is not going to make a meaningful impact on the climate.
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