Canada is proposing a cut in the amount of sulfur that cruise ships may have in their fuel for 2012, which could make cruising to Canada much more expensive for cruise lines. The current regulations stipulate cruise ships within 200 miles of the Canadian coast can use fuel that is 1.5 to 2.5 percent sulfur. The proposed cuts, set in an agreement with the United States, would demand sharp cuts in sulfur in the next five years with the first ones kicking in in 2012.