On 20 Feb, 11:18, "Kev" wrote:
On Feb 20, 10:33 am, wrote:





On 20 Feb, 09:39, "Kev" wrote:

On Feb 20, 8:36 am, wrote:

Assuming the electricity was generated using renewables like Wind the
pollution levels approach 0.

Nothing is zero emmisions, it still has to be manufactured, scrapped
at the end of its life, the power has to be distributed and
maintained.

Kevin

This depends on how power is produced.
It's an issue beyond the scope of this newsgroup, but as a matter of
scientific principle, all of the things you mention can be done
without producing any CO2 whatsoever.

As a matter of scientific principle perhaps that is correct but as a
matter of scientific fact zero emmissions are unobtainable. For a
start there will never be 100 % zero emmission generation and we still
come back to the question of CO2 produced during manufacture, since we
don't do it anymore it is out of our control.

kevin- Hide quoted text -

- Show quoted text -


"Calgary's CTrain is 100 percent emissions-free, the only light rail
transit system in North America to be powered by wind-generated
electricity."

http://www.calgarytransit.com/ctrain...k_25years.html

No figures on manufacture, but a diesel vehicle needs manufacturing
too.....