We can become Earth Activitists if we would like to save our planet. We are studying sustainability this term so here is a starter...
Do the quiz [it has a cool flash animation] to see how many planets are required to support your lifestyle... you maybe shocked!
The concept of an ecological footprint is one you need to understand. :-)
Here is some extra info for brainiacs:
http://www.mfe.govt.nz/publications/ser/eco-footprint-sep03/index.html
http://www.footprintnetwork.org/en/index.php/GFN/
