Yes, though ocean ships are not the only source of sulfer (and even low sulfer fuels have some sulfer.) But the duration would be short, we've already been doi

Yes, though ocean ships are not the only source of sulfer (and even low sulfer fuels have some sulfer.) But the duration would be short, we've already been doing it for decades, and the data could be invaluable. Regardless of the politics and peoples perceptions, it seems like the right thing to do scientifically. If you're against tampering with the environment then consider that by switching to low sulfer fuels we have just tampered with the environment in a huge way, without any scientific study of the results or forethought as to what the consequences would be. Halting pollution is just as big an experiment in geoengineering as any other type of geoengineering. This is an opportunity to learn something about geoengineering at low cost and low risk. Best case may be that putting the sulfer back shows little effect. Worst case is it shows a big effect and then we have to very careful about when and how we end other sources of particulate pollution that may have an effect on warming. That would be terrible since it may mean we'd have to keeping putting poisons into the atmosphere to keep from cooking the planet for a while, but at least we'd have a better idea of what we're doing and what effects air pollution is currently causing.