In the mid-fifteen-hundreds, a Swedish peasant named Nils lived on an island called Iggön in the Baltic Sea. He was known to his neighbors as Rich Nils, apparently because of the plenitude of fish in ...

For around 2,000 years, global sea levels varied little. That changed in the 20th century. They started rising and have not stopped since — and the pace is accelerating. Scientists are scrambling to ...