Arctic stress: melting ice in Greenland’s Karrat fjord may be down to climate changeMichelle Valberg/GettyBy Adam PopescuEarthquakes in Greenland are rare. At least, they’re supposed to be. But a few weeks ago, a 4.1 “quake” struck Nuugaatsiaq, a tiny island off Greenland’s west coast, triggering a massive tsunami that smashed homes, leaving at least...