I can't help feeling that this piece in today's Grauniad was written by someone with a deadline to meet and no time or inclination to research it properly.
[url]http://blogs.guardian.co.uk/ethicalliving/2007/10/cycling_and_the_congestion_cha.html[/url]
Never mind, some of the comments make for interesting reading. Personally, I think riding in Big London is better after the congestion charge, but I would do it anyway - mainly because it's reliable and it helps me retain a zen-like air of contentment .