A critical economic sector for many countries around the world, tourism also has its share of drawbacks. One negative is that tourism is often a major source of pollution due to the transportation of tourists, construction of resorts, recreational activities and the waste generated by visitors. Tourism can also damage ecosystems by disrupting populations of both plants and animals, and it can create a cycle of dependency among the poor. Fortunately, responsible tourism is gaining ground – tourism that responds to the needs of both the people and the environment, tourism that benefits both visitors and their hosts. Architects of Change featured: * Bill Gallegos, U. S., social activist aims to ensure that the most vulnerable people in our society have a reasonable quality of life, free from pollution. * Jany Hansal founded DESA, an organization for Croatian women who had been driven from their homes during the war of independence in 1991. He helped them create traditional clothing encouraged people to showcase their culture and rebuild their country through tourism. * Jean-Francois Reumaux took up the challenge of protecting the forests of Laos, using tourism to generate the needed funds to protect this ancient, biodiverse forest. In 2004, he built a tree house for guests to observe gibbons in the Bokeo forest. He hired former poachers as forest guards and villagers installed zip-lines and built more guest houses, creating a sustainable economy for the forest and its inhabitants.