In fifty years 90 per cent of present-day marine fish, crustaceans, shellfish and other currently eaten species of seafood could vanish. And guess what, Global Warming's got nothing to do with it; its just straight-out over-fishing. You can actually see the effects when you go out to dinner. I don't know what bottom-dwelling monster you get when you order fish and chips these days, but it hasn't been cod for years.
Doom, baby, Doom! Better see if you can't rent a room at one of them L5 space stations.