California grants climate credits for fuel made from cow manure, but there’s a paradox: The state’s program encourages collection of methane yet promotes natural gas.

Biofuel experts say digesters can reduce air pollution. Home to about 1.7 million cows, California is the country's leading dairy producer and a large contributor of methane.

California is America’s dairy capital, with more than 1.7 million cows producing about $10 billion worth of milk last year — but these cows and other livestock in California also produced the ...

California has roughly 1,100 herds and 1.7 million cows and produces 20% of the milk produced in the country. Fortunately for dairy farms across the nation, milk prices are high, and feed costs ...

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 ...

A man from California who ran a multimillion-dollar fraud scheme where he claimed to turn cow manure into green energy has been sentenced to over six years in prison, the US attorney’s office ...

Bird flu outbreaks sent egg prices soaring in recent months, in some cases north of $9 per dozen. While the virus also spread to dairy cattle, the outbreaks didn’t seem to boost California milk ...

The drop in milk production for an individual cow or farm can be quite large — recent reports from California show that an infected cow can lose up to 100% over a few days, and later return to ...

By Alejandro Lazo As California seeks to lead the nation on battling climate change, perhaps no debate is more fraught than the one over climate credits for cow poop.