Water scarcity is a growing issue worldwide. There is a lot of water in the world, but issues of location, timing, quantity, quality, and use can lead to serious problems. Here are links to some recent articles that highlight the issue.
How will climate change impact on fresh water security? (Mcintyre, N., & Clark, D., Guardian, Nov. 30, 2012)
Scarcity of Water and Land Shifts Geography of Food Production and Irrigation Networks to China’s Northeast (Schneider, K., Circle of Blue, Nov. 9, 2012)