> Also if we imagine some huge industrial process that dries the air, removes water vapor from the air, this wouldn't really decrease the amount of water vapor

> Also if we imagine some huge industrial process that dries the air, removes water vapor from the air, this wouldn't really decrease the amount of water vapor in the atmosphere, because the drier air would just suck up the water back when it next comes into contact with a water body, damp soil or vegetation. That's true on the macroest of macro scales, but in local climates, water vapor doesn't maintain a steady state. Otherwise every climate would be relatively green. In any case, if it's really so much better to capture methane and burn it for fuel than let it escape, then we should be forcing natural gas companies to figure out how to capture melting methane clathrates instead of taking them out of ground wells where they're relatively stable.