03:38
Look Out Below: Impact of Rising Sea Level
Sea level is rising about two millimeters per year. For those people and structures located along shorelines, this could eventually be a serious problem.
01:39
Look Out Below: Sea Level and Global Warming
The precise role that global warming plays in determining sea level is a subject of considerable controversy. But many scientists believe there is a link.
01:25
Look Out Below: Monitoring Sea Level Changes
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...