Scientists predict that sea levels could rise as much as 5m by the year 2200. How will this affect the coastline of the South-East? The key urban areas at risk are Portsmouth, Bognor Regis, and to some extent Southampton. There is also a large amount of rural land and other smaller rural settlements. Is it therefore feasible to protect the coastline from the threat of flooding? This study proposes that this is the case, benefiting the area by an estimated £26 billion.