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 for the Green Wales season, follow Tom to Hudson Bay in Canada to meet Polar Bears International and ask questions on climate change from his pupils. The organisation will use the song to raise awareness of the impact of global warming in the Arctic. See how the sea ice is decreasing and the bears go hungry. Can a song help to save the bears?