Caption: With the right combination of factors, the flooding of London is a very real possibility. There is a 1 in 1,000 chance that, during any given year, London will be flooded by a storm surge, a freak phenomenon caused by extreme weather conditions and a number of contributing factors. However, when we take into the consideration the influence of global warming, this risk and the effects of such a disaster become much greater. After 2030 the likelihood of the Thames flooding will increase anyway, but these chances will be further fuelled by the effects of global warming, which is just one of the reasons as to why this needs to be reduced.