Portland leaders may soon weigh whether to roll back parts of the city’s signature climate policy on replacing diesel with renewable fuels, a first-in-the-nation standard critical to reducing ...

Click to share on X (Opens in new window) X Click to share on Facebook (Opens in new window) Facebook Although it is similar to the smell of a busy kitchen at McDonald’s, bio-diesel fuel now being ...

The world is shifting toward clean energy, and that means diesel has become a dirty word. It’s no secret that diesel emissions are extremely harmful to the atmosphere, as are gasoline emissions, but ...