OK, maybe I was being a bit naïve about removing diesel cars, but don't let's confuse their toxic emissions (which is what I was talking about) with CO2. CO2 is a major problem for the environment of course, but is not itself toxic.
QUOTE
You post as if petrol vehicles breath out fresh air!
No I don't, but their emissions are far less harmful. I suggest you take a look at
this article:
"Diesel exhaust is a Group 1 carcinogen, which causes lung cancer and has a positive association with bladder cancer. It contains several substances that are also listed individually as human carcinogens by the IARC."
"The primary products of petroleum fuel combustion are carbon dioxide, water, and nitrogen."