A while ago, I wrote a post on the SkySails system, intended to reduce the fuel use of cargo ships through the use of a massive kite. Today, Neal put a post on MetaFilter on the possible resurgence of sail.
A return to sail does have both ecological and romantic appeal. Forcing the fishing industry to use equipment from the 18th or 19th century (with better safety gear) might even maintain employment without utterly ravishing the sea as rapidly as we are doing now. It could spur the re-emergence of a wooden sailing ship industry, and it would probably attract some tourists as well.