
ABOARD THE COAST GUARD CUTTER HEALY, IN THE ARCTIC–When you plow into a 4-foot-thick chunk of sea ice at 3 knots, even in a 16,000-ton state-of-the-art icebreaker like the U.S. Coast Guard cutterHealy, it’s hard not to notice. The whole ship shudders and seems to lurch sideways. Metal cabinets rattle. Californians swear it sounds and feels just like an earthquake, with deep rumbling booms and tremors. Others say it’s like hitting turbulence on a jetliner, the shivering and rattling accompanied by the overdrive whine of 30,000 horsepower. If you’re down in the galley, right on the waterline, what you hear is the nerve-wracking scraping of shattered ice along the side. Five stories up, on top of the bridge, you feel the bump of the collision over the strain of the engines pushing the ship through a sea of drifting white, blue, and dirty gray ice.