Bob Brown led the Australian Greens from the party's foundation in 1992 until April 2012. Bob was elected to the Australian Senate in 1996. He was also the first openly gay member of the Parliament of Australia, and the first openly gay leader of an Australian political party. In 2012 Bob stepped down as Leader of the Australian Greens, and then retired from the Senate. Since then he has continued to campaign on conservation issues across Australia and the world. Bob discusses his life’s work and his new book Planet Earth with fellow environmental advocate Scott Ludlam. Bob’s words are a clear message on the issues facing our planet and his positive approach is an inspiration to us all.