subject: greenhouse gas

California’s Dairy Industry Has Grown Kinder to the Environment

California’s Dairy Industry Has Grown Kinder to the Environment

Milk is big business in California. It’s the agricultural product that brings in more farm revenue than any other in the state. It employs about 190,000 workers, and involves 1.78 million cows. Indeed, dairy has been important to California’s economy for decades, and over time innovations in animal husbandry, feeding and in growing crops that dairy cows eat have led to substantial changes in greenhouse gas emissions. Recently, Ermias Kebreab and his colleagues at the University of California, Davis, calculated exactly how much these emissions have changed in the 50 years from 1964 to 2014. Although the total emissions from the state’s dairy industry increased over that period, the state also produced much more milk, and the industry has become more efficient in terms of its emissions. Read More...

Cows May Go Green

Cows May Go Green

It’s a tough gig being a cow. Productivity expectations for meat and milk are high, and at the same time, the cow gets a bad rap for belching a potent greenhouse gas, methane, which is a by-product of its digestion. Some people say it’s like driving a car very hard on a winding mountain road and then complaining about the car’s increased exhaust gas emissions. Reducing emissions and fuel consumption while maintaining performance is the golden ambition of car manufacturers. A similar goal is also true for the cow. People in many government agricultural agencies and the Food and Agriculture Organization (FAO) want the beef and dairy industries to use more productive cattle emitting less methane and using less feed i.e., increasing industry production efficiency while decreasing its environmental footprint. It’s a tall order seemingly resisted by the realities of cow biology, however recent ground-breaking research may have opened new opportunities to meet these ambitious aims. Read More...

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