Greenland may be 3,000 miles from Charleston, South Carolina, but what's happening there will determine the city's fate. Lauren Petracca and I connected the dots in a project we called "The Greenland Connection." The main story features an Elvis impersonator and a shaman, among other things, and delves into an issue the national media hasn't really addressed in depth -- Greenland's powerful gravitational effect on ocean tides. Visit it here: https://www.postandcourier.com/greenland Here's how it begins: 1. Gravity So many things in Greenland are gigantic. Greenland is five times the size of California, and roughly 80 percent is covered with ice. Greenland’s ice sheet is a mile deep on average, but near the center of the country it rises 10,000 feet into the sky. Greenland’s ice sheet is so thick and heavy that it makes the Earth wobble a bit as it spins, like an unbalanced top. When the ice sheet meets the ocean, the ice sometimes cracks and falls wit