> I find no reference to "aquifers" in that.

Ahh, I see your objection now. That is my bad. I was using my language too loosely. Here I was using 'aquifer' to mean 'any source of drinking water', but that is certainly different from the intended meaning.

> And again, I don't disagree that they're a problem, it's just that the "water" part of the problem is so low down the list of things to worry about as to be a rounding error.

I'm skeptical of the rounding error argument, and weary of relying on the logical framework of 'low down the list' when list items' effects stack interdependently.

> give up beef, dairy, cotton, rice, almonds, soy, biofuels, mining, paper, steel, cement, residential lawns, soft drinks, car washing, and hospitals

In part due to this reason, as well as others, I have stopped directly supporting the industries for: beef, dairy, rice, almonds, soy, biofuels, residential lawns, soft drinks, car washing