If you don't mind stretching things a bit, a horse or any other animal used to pull human-made vehicles is a sort of living engine. Our species has been using them forever, and we still do, despite ...

Car manufacturer Mazda has unveiled a microalgae-fuelled concept car that is designed to capture carbon dioxide emissions from exhaust fumes while it is being driven. It showcased the car at the Japan ...

Fuel that grows in the ocean could be the new thing that keeps the internal combustion engine kicking along, according to Mazda.