When I was living in London back in 1999, one of my friends was working on the Jubilee Line Extension (JLE) project, which was extending the tube/underground ou

When I was living in London back in 1999, one of my friends was working on the Jubilee Line Extension (JLE) project, which was extending the tube/underground out to the east. He told me that the bilge pumps running in many parts of the London underground are running 24/7, simply because the water table is so high (and the underground is very deep in some places). During normal weather, if those pumps go offline for more than 15 minutes they have a major flooding problem. Doubtless that situation has worsened over the past two decades. London is very flat and very low -- they're going to be an unfortunate poster child for coastal cities being slowly but inexorably wiped out by sea level rise.