Ecological footprints

Year 9 are starting 'Ecosystems, Population and Resources: Can the earth cope?' this half term.
First watch the short film which explains what an 'ecological footprint is.



Then use one of the following sites to find out what your own ecological footprint is:
http://www.earthday.net/footprint/index.asp#

http://www.bestfootforward.com/carbonlife.htm

Or try this one...