AGENDA 21

http://www.jornalnh.com.br/blogs/jornal-na-sala-de-aula/398394/alunos-abracam-a-causa-ambiental.html

http://www.youtube.com/watch?v=i7JDhRkkoBQ&list=UUjMbLpXQDFG8jsZ0Myo1OuQ&index=60&feature=plcp