This was made painfully, tragically clear when last week, six workers — five adults and one teenager — were killed at a ...

Liquified cow manure commonly is stored in a covered digester where microbes from the animals’ digestive systems produce gas.

Liquified cow manure commonly is stored in a covered digester where microbes from the animals' digestive systems produce gas.

California-based startup, Circularity Fuels, hopes to accelerate the production of sustainable aviation fuel (SAF) ...

California is a leader in curbing methane emissions from dairy farms, a major source of greenhouse gases. But it may come at the cost of some residents' health.

In southern Idaho’s sprawling dairy country, cow manure has long been a costly headache for farmers and a growing ...

In recent decades, digesters that convert cow manure and other organic waste into biomethane to create electricity or to fuel vehicles have spread nationally, and the number is expected to grow.

Liquified cow manure commonly is stored in a covered digester where microbes from the animals' digestive systems produce gas.

Converting cow manure to fuel is a growing climate solution, but critics say communities are put at risk.