The world is pretty complex - are we sure that causing less rainfall over oceans wouldn't have some weird knock on effect for the environment? Does fresh water falling on ocean surfaces contribute to the known stratification of salinity that allows some animals/plants/whatever to be able to survive in the top layer of water?

We have a problem: we're farming lettuce in Arizona. It feels a lot safer to just stop doing that then try to fix the issues with work arounds that might cause bigger issues.