00:55
On the Coast: Defining the Coast
There is no universally accepted definition of coast. It is essentially a boundary between the land and the sea, but it's a broad zone rather than a single line.
01:31
On the Coast: Human Impact on Coastlines
Like a sparkling ribbon pressed between land and ocean, the coast draws people to it the world over. In the United States, almost eighty percent of the population lives in coastal counties. Unfortunately, most human impact on coastlines is negative.