We just had a great webinar yesterday with Natalie Topa.  She went over her 13 years of experience working with NGO's and groups of refugees to pull off large scale environmental and social restoration projects.  Even among people who had nothing, with the right techniques they were able to dramatically restore their soil and water supplies and bring back social stability to their areas.  This was a pretty eye-opening, inspiring webinar because it shows what can be done in high need, conflict areas, even when resources are scare.  It's definitely worth a watch.