Yemen may be the first.

The first country to run out of water, that is. Yemen has always been a dry country that relied on wells for water. In the Sanaa basin water could once be found at 20 meters. Now a well must be 200 meters deep to find water. In the capital, which is also called Sanaa the authorities expect that the ground water will run out within 10 years. This problem is exacerbated by all the people who are moving into the city because they are running out of water in the country. Yemen also has one of the worlds highest population growth rates, 3.5% per year. Because Yemen is a poor country they can not afford a desalination plant to make fresh water from sea water. If Yemen cuts the amount of water that irrigation provides to crops the country will have to import more food. Yemen has some difficult choices to make in the years ahead.