The Map That Grew, The Woolly Glacier, and Five Hundred Golden Dogs

Three stories in one episode. Polly and Trevor explain why the United Nations has voted to change the world map so Africa appears at its true size, how Swiss scientists are testing sheep's wool blankets to slow a melting glacier, and why hundreds of golden retrievers are heading to a Highland glen. A gentle introduction to geography, climate science and a very happy piece of dog history.