March 22 is international world water day highlighting the need for clean drinking water. In the United States we take clean water for granted. Bad water and lack of sanitation cause 80% of diseases and kill more people every year than all forms of violence, including war. Some suggested reading on the topic:

It’s World Water Day! What’s your source of water? – USA Today

On World Water Day, Fighting the battle for clean water – Washington Post

World Water Day 2011: Which Nations Are Most At Risk?
How can you improve your water stewardship?