I was planning a route to a restaurant and saw this on Google. I don't recall any fire of this size being mentioned in the paper so I can only guess it must be a cloud
http://maps.google.com/maps?f=q&hl=en&q=wandsworth&ll=51.461173,-0.200844&spn=0.019546,0.053172&t=h
Trying to work out when the photo may have been taken is more difficult
Putney Wharf is completed
http://maps.google.com/maps?f=q&hl=en&q=wandsworth&t=h&ll=51.465351,-0.212965&spn=0.001221,0.003323&t=h
http://www.homedesignawards.com/homebuilder/homebuilder_2005/Category5/tower/tower.htm
Wikipedia says the photos are between a year and five old
http://en.wikipedia.org/wiki/Google_Maps
I originally thought that the reason that the resolution on the maps had been upgraded was because new photos had been taken - obviously not.
http://www.noelwatson.com/blog/PermaLink,guid,ed517dd5-120d-4fb7-9021-ab210b3ee7a3.aspx