Richard Hollingham presents the cutting-edge science programme. He reports from Antarctica, where scientists first discovered the ozone hole and warned of the effects of global warming. The ice sheets there provide us with important clues about climate change. With the coldest seas in the world and some of the most fascinating and hardy plants and animals anywhere on the planet, there is plenty for scientists to examine. Producer Alexandra Feachem. E-MAIL: scirad@bbc.co.uk