Governor Gavin Newsom has a renewed interest in E15, a blend of ethanol and gasoline, as a means to lower fuel prices.

Petrobras is in talks with four or five firms in the ethanol business, Chief Executive Magda Chambriard told analysts on Friday during a call to present the company's $111-billion strategic plan ...

Nitrate is less of a problem in your aquarium than ammonia or nitrite, but it still shouldn't be ignored. Matt Clarke answers some of the most frequently asked questions on nitrate. Nitrate is less of ...

They focused on an 84-acre field in Yolo County, west of Sacramento, used to cultivate tomatoes and cucumbers — measuring nitrate levels during both growing and rainy seasons. Previous studies ...

"We found these extreme events, such as California's atmospheric rivers, are going to move nitrate more quickly." In this study, different methods were used to measure how much nitrate, a ...

UC Davis researchers insert a device that continuously collects water samples underground, providing real-time data on nitrate contaminant movement. (Isaya Kisekka / UC Davis) Extreme weather spurred ...