Scientists have found a way to use plastic trash to create a cleaner diesel-like fuel that could power vehicles, an advance that may turn landfills into potential energy sources in future. The researchers from the Chinese Academy of Sciences and University of California in the US hope to scale up the technique to allow for it to be used in actually reducing plastic trash. Plastics break down very slowly causing them to pile up in landfills and serving as the source material in artificial island creation in oceans. Scientists have been looking for ways to degrade plastics, particularly polyethylene, the most common kind produced, but until now have not been able to find inexpensive and scalable means.