Hydrogen

Ganin cewa ya zama dole a rage matakan gurbatar yanayi, An sanya hydrogen a matsayin ɗayan mai mafi tsafta wanda ya riga ya kasance a cikin wasu motocin a manyan biranen. Babban fa'idar hydrogen shine ana samun sa daga ruwa saboda haka shi ne mai arha sosai wanda shima yana da tasirin gurɓataccen gurɓataccen yanayi ga muhalli idan aka kwatanta shi da burbushin gargajiya.