A huge storm in the North Atlantic brought storm surges as high as 20 feet yesterday to Europe and the UK. Barriers on the Thames were closed to protect London. This is the biggest surge since 1953. Fortunately no one was hurt and damage was minimal.

The issue here is that climate change doesn’t simply mean higher ocean levels. Even a slight rise in levels, combined with more violent weather due to warming, will mean more and more of these storms in regions where they have been very rare in the past. Because there was no historical record of major storm surges, these coastal areas are highly developed and support dense populations. The potential for future destruction is much higher because of this.

This is a classic environmental feedback loop. Warming generates storms, higher ocean levels mean higher surges. Interestingly, the same storm caused unstable snowpack conditions in Switzerland, creating dangerous avalanche conditions.