[dkga]

Yes, that is right. I didn't forget to mention it, just thought the Minas Gerais case was the most unique geologically as opposed to the far-too-common negative externality problem as is the agricultural excessive use of water + deforestation. But you are completely right. I actually live deep in the Cerrado region now, in Brasília, and I can see first-hand the negative effects of over exploration of water in the region.