Came across this story (http://www.smh.com.au/news/world/mum-to-14--at-just-21/2007/08/25/1187462583449.html) today in the Sydney Morning Herald, and thought you might be interested. This seems much more the way to go about saving the world (or at least, a small part of it). And a pretty impressive thing for a 21-year-old to do (well, when I think back to what I was doing at 21...).

They have a website, Cambodian Children's Trust (http://www.cambodianchildrenstrust.org/).

Hope your trip is going well! It sounds amazing.