But there is a feedback loop - the faster you take the water, the slower you can get it.

And the more water is returned the faster it ends up in the air. My estimate from wind speeds is that everything will stabilize within 2 days.

i.e. taking water from the air will have no impact. See: http://news.ycombinator.com/item?id=4816580 where I expanded on the topic a bit.