Living on Earth: CURWOOD: Compared to the relatively gradual pace of warming in the Antarctic, the Arctic is warming rapidly – faster than any other place on earth. As part of our observance of Earth Day this month, we revisit some memorable stories from the Living on Earth archives, and check out what’s happened since. Today – a report from 20 miles south of the Arctic Circle – Shishmaref on Alaska’s north-west coast. Inupiat families have lived in the region for at least a thousand years – but …