Ironically, diesel has been promoted as green because it is more fuel efficient and emits less carbon dioxide. However, 91 percent of particulate - matter air pollution in that area comes from diesel vehicles.
Kuigi diislikütust on propageeritud keskkonnasõbraliku kütusena, sest see on tõhusam ja eraldab vähem süsihappegaasi, langeb 91 protsenti selle piirkonna õhusaastest paradoksaalsel kombel just diiselsõidukite arvele.