Guzel Ramilevna, 13, Russia. 'In my picture the penguin is losing its family members as the ice suddenly broke. They cry to each other but they have drifted so far that their voices cannot be heard. The places which are considered suitable for polar animals to live are now losing inhabitants. People here in Russia all dream of owning big luxury cars, but just think about those little animals and you will know what to do'

Photograph: UNEP