http://youtu.be/hY7KoJsxcZg

You are invited to post a comment, both Michael Ham and St Mark´s students.

http://www.bbc.co.uk/news/science-environment-13469925

http://blog.longnow.org/2011/05/17/do-you-have-a-moment-for-pure-genius/

An interesting page so that you know many people are also recycling.

www.dondereciclo.org.ar

http://www.lanacion.com.ar/1370968-cont-recuperan-recuerdos-olvidados