Can a song from Wales help the polar bears? It's not only the polar bears who are confused by some of the science behind global warming. Here is a quick guide to some of the terms used in the song.

Visit BBC Webwise for full instructions Tom Rugg, a biology teacher from Chepstow, has written The Polar Bear Song to raise awareness of climate change among children. In an exclusive video diary ...

Can a song from Wales help the polar bears? It's not only the polar bears who are confused by some of the science behind global warming. Here is a quick guide to some of the terms used in the song.