On Sun, 6 Nov 2005 17:31:23 +0000, Clive wrote:

In message , David Bradley
writes
Then I am one ofthe few because there is no such thing as a clean
diesel, only a less dirty one. Progress would have been served if the
route had been electrified with zero polluting,
Such a thing doesn't yet exist.

Please explain further. In my book a trolleybus IS zero polluting.

David Bradley