Vale a pena!!!!

 Vídeos e áudio com informações da Rio+20

http://www.youtube.com/watch?v=KPVqTotfqHU
http://www.youtube.com/watch?v=HKlOtliirvk
http://www.youtube.com/watch?v=Sm8TZhEBQqY&feature=relmfu
http://www.youtube.com/watch?v=jchTBzv6Pow&feature=related
http://www.youtube.com/watch?v=Vb92BqfjU14&feature=relmfu