For an International Business class I took last semester I had to do this big project on India. One of their big problems is a lack of potable water. As more people crowd into the country, along with corporations (Coke for instance tried to put a plant in the country and totally screwed up that area in terms of water supply).
So heres an article I ran across today where basically 1500 farmers in a region had committed mass suicide because they were just so in the hole. Water used to be at 40 feet above sea level, now its 250 feet below.
Sad. Just sad.