The findings of an official report come a month after a German court ruled in favor of banning diesel cars.

News reports reveal that Volkswagen, Daimler, and BMW funded the organization that conducted the studies.

By engineering the genome of E. coli with genes from several sources, scientists have coaxed the microbe to produce diesel-replica hydrocarbons.

The WHO has upgraded exhaust fumes from diesel engines from a “probable” carcinogen to a toxin that does cause cancer.