Frank McDonald's future Dublin: Prepare for floods. Lose the ugly bridge. Dig an underground – The Irish Times

Prepare for floods

Although estate agents selling desirable period homes in Clontarf or Sandymount may not wish to acknowledge it, one overwhelming fact that must be faced is that Dublin’s coastal location leaves the city vulnerable to rising sea levels as a result of climate change.

The mean sea level in Dublin Bay has risen by 120mm since 2000, or 7mm a year, which is double the global average. Dublin City Council was working on the assumption that sea level in the bay would rise 500mm – 50cm – over the next 50 years and that new flood defences “should cover us” for that extended period. But the alarming rate of Arctic melting suggests that it may not.

The United Nations Intergovernmental Panel on Climate Change, with thousands of scientists worldwide contributing to its work, has projected that sea levels will rise by at least 900mm and possibly as much as

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