The world’s second largest producer of trucks, the Swedish automaker Volvo, has revealed another Volvo part, a truck engine lineup that can run on renewable fuels. The automaker also called for more efforts to be done to make these renewable fuel sources be commercially available.

These green engines can be powered with the use of seven types of fuel, which ranges from man-made diesel to a mixture of hydrogen and biogas. The automaker said that since these types of fuels are made from renewable raw materials, then they do not add carbon dioxide to the ecosystem. This rising emissions of carbon dioxides is said to be the major cause of the climate change.

The Volvo Chief Executive Leif Johansson said that these engines are not yet being produced for the auto market but manufacturing could begin in a few years once the fuel becomes available.

In a news conference Johansson said that politicians and energy firms needed to do more to ensure that renewable fuels are developed further and made more available to consumers. He said, “The message here today is that, had the fuels been available, we (Volvo vehicles) cold have been carbon dioxide-free within just a few years.”

“We have significant problems finding commercially sensible volumes of fuel.”

There are still lots of efforts needed in order to create European, or preferably global, standards for renewable fuels and to guarantee their distribution, according to Johansson. He added that making green truck fuels available widely do not need to take a long time.

He said, “We are not very far from there today. There have been two concerns from the fuel industry. One has been that there won’t be any vehicles ready if they develop these fuels. We have tried to address that worry today.”

He added that more public investment in research and development about these new fuels is needed and also these fuels need to be promoted.