Trade is/was much easier in the coastal regions than other areas. This trade poured investment around the area which surmounted all other non-coastal areas. read more
To appreciate the coastal area at greatest risk of flooding, it is necessary to first analyse current heights above sea level. This is not easy because no reliable topographical maps yet exist for many coastal areas. At a rough estimate more than 200 million people worldwide live along coastlines less than 5 metres above sea level. read more