This figure shows the impact of the increase in mean sea level predicted for the year 2100, as a result of climate change. It is clear that a significant area of current land will be beneath the waves by 2100.

The calculations for the change in mean sea level are based on the predictions of the Intergovernmental Panel on Climate Change (IPCC), which at its 2007 meeting revised its estimate to suggest an increase of 0.47m in mean sea level over the century 2000-2100.

To this must be added a small component (approximately 0.6mm per year according to the UK Climate Impacts Programme) to allow for the continuing land subsidence along the south coast of England.

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