Michael Berkeley 's guest today is the scientist
Professor James Lovelock , one of the foremost ideological leaders in the development of environmental awareness. He developed the Gaia theory, which regards the planet Earth as a self-regulated living being, capable of withstanding the assaults made on it by human activity, albeit with serious consequences for mankind. His love of music is a late passion that has blossomed since his second marriage and his choices today include Mozart, extracts from Verdi's Don Carlos and Wagner's Parsifal, a string quartet by Janacek, and Frank Sinatra singing Witchcraft.