Environmental issues

What are the three R's ? Reduce, reuse, recycle
http://www.recyclingconsortium.org.uk/secondary/info/defin.htm

Here is a guide to understand global warming, greenhouse effect, green energies, and find out solutions...
http://news.bbc.co.uk/cbbcnews/hi/find_out/guides/world/global_warming/newsid_1575000/1575441.stm

Watch this very interesting video on global warming. It is transcribed, so you can easily follow the commentary.
http://en.yappr.com/welcome/Video.action?videoGuid=1BCB2FB9-9D38-4F3B-84B3-7F426F95E5B1

Global warming (narrated by Leonardo DiCaprio)

51 things we can do to save the environment
http://www.time.com/time/specials/2007/0,28757,1602354,00.html

Some other interesting articles :
http://www.timeforkids.com/TFK/kids/news/story/0,28277,1691417,00.html
http://news.bbc.co.uk/2/hi/science/nature/7400911.stm

Songs
Songs for school