There is no single, universally agreed upon system of classifying coastlines. Given the large number and variety of classification approaches, oceanographers often gravitate towards the method they consider to be most useful in studying coastal zone...
Sea level is rising about two millimeters per year. For those people and structures located along shorelines, this could eventually be a serious problem.
Monitoring sea level change has not been easy because of difficulties in measuring sea level in some places. Improvements in satellite technology, however, have enabled scientists to cover a much greater area than ever before as part of the measurem...