For years Pima County officials have struggled with what to do about smelly sewer gas. Their newest potential solution - put it in their cars and drive it to work. That's right. County planners are ...

One of the biggest hurdles for cars powered by hydrogen is generating sufficient supplies of hydrogen in an environmentally friendly manner. Toyota is working with a company known as FuelCell Energy ...

Volvo Car’s Taizhou manufacturing plant has switched to biogas, the Geely-owned brand says. It is now the firm’s first plant in China to achieve climate-neutral status and will reportedly result in a ...