On Thu, 27 May 2010 23:45:59 +0100, "
wrote:

What have they done with the line since its closure?

I must say that I am surprised that they closed it, especially as London
is trying to cut down on carbon emissions.


So the electricity used to power the railway was zero carbon, was it?
Didn't Britain have any coal, oil or gas fired power stations when the
Post Office Railway operated?


The Post Office railway skirts through traffic, emits no exhaust fumes
and could possibly carry much more than any lorrie -- or at least make
much more frequent runs.


The exhaust fumes are at the power stations. Lorries and vans are
needed to collect the mail and bring it to the railway, and then to
distribute it.

You would be deluded if you thought that the mail operation emitted no
exhaust fumes because one small component of it is electric - and
electricity means exhaust fumes from coal and gas fired power
stations.