According to the World Health Organization : ” the WHO today classified diesel engine exhaust as carcinogenic to humans, based on sufficient evidence that exposure is associated with an increased risk for lung cancer.“
This is a bad news for me as I recently changed for a diesel car and I am amazed at how much money I am saving. Of course, diesel is not this popular in other countries, and the latest WHO findings won’t change this.
So if you are looking for an efficient car that doesn’t cause climate change or cancer, go for an electric one, and charge it with solar PV panels.