David Shukman was the BBC's first Science Editor and led its coverage of the environment for nearly twenty years. Now working as a speaker and consultant, he's publishing a new book in early May. The Response: A Story of Fire and Flood in Britain's New World of Extremes reveals how climate impacts are far more severe than many realise but also explains what we can do to make ourselves safer. David is a Visiting Professor in Practice at the LSE's Grantham Research Institute.