coastal

Over time, small-scale attacks on vulnerable coastal communities evolved into sieges on cities; temporary camps grew into permanent communities; and trade networks spread even farther.

Everyday high tide comes and waves flood coastal cities.

Moving from familiar coastal waters into deeper, more remote waters, we eventually reach the edge of the continental shelf, where we're confronted with the continental slope, the long descent down to the deep sea.

We recently did some experiments in the lab to see how long Lego would last in the marine or coastal environments, and the scientists that did the experiments worked out that it could last up to 1300 years.