WATER
It is very easy to learn firsthand (in one day, even less) about hardship of water shortage. But nobody is happy to do it as a volunteer. The reason is very simple -- life on Earth is water-based; water is our constant daily necessity; and fear of lack of water is deep in our genes forever. if you live in Pacific Northwest, you belong to elite club of lucky few blessed with excessive water of the best quality (many Americans can only dream about water like that). Plan your next trip abroad to India, or Afghanistan, or Nepal, or Turkmenistan, or almost any place in Africa, and witness firsthand how majority of the world population lives in terms of water supply...