大象传媒

Andrew Barton, sitting in for a poorly Paul Hudson, meets the woman in charge of the Met Office's observation balloons, which beam information back to earth each day. ... Dr Faye McAnulla has just returned from the UN Climate summit in Peru, she tells Andrew about that ... and Dr Tracy Aze explains how the earth's atmosphere became oxygenated. ... As if that wasn't enough, there's the final part of the series, discovering what the land around mainland Britain was like at the end of the last Ice Age and Andrew reveals how many sides a snow flake has and when the coldest christmas day ever in the UK was.