Around the world seas are rising. Fed by human warming, the great waters have been pushed to thermally expand. The added heat is melting the glaciers as well. And from the high mountains to the Arctic and on into the Antarctic there are few ice masses now that have been untouched by the rising temperatures.

The rise in ocean heights began as human fossil fuel emissions spread into the airs of the early 20th Century — warming both the atmosphere and the waters. The rate of rise was, at first, slow — less than 1 mm per year. But as the greenhouse gasses built up and rates of global heating increased, so did the annual rate of sea level rise. By the end of the 20th Century, sea level rise had more than tripled to about 2.9 mm per year. And by today that annual rate of increase has accelerated…