Frozen may be an enormously popular film, but several videos of ice-encrusted ships on the US Great Lakes represent a horror show for much of the steel industry.
Up to four-feet thick sections of solid ice have mired huge ships from delivering essential coal and iron ore to steel mills. One video, shot as recently as April 12, showed the lakes had a long way to go before thawing, with the ice still 15-20 inches thick in some spots — enough to stall a big ship. (We were shown that video privately, so can’t link to it. However, a CBS News story that captures a few of the icy images can be seen here.)