In an exclusive extract from his new book, World on the Edge, Lester Brown outlines fresh ways of thinking about water and land use in order to sustain the world's growing population
Environmental journalist Fred Pearce, author of the new book Peoplequake, on why overconsumption is the key issue, the need for relaxed immigration laws, and why men should look after children
Lester Brown, founder of the Earth Policy Institute and the WorldWatch Institute, on his fears for Copenhagen, genetically modified food and the failure of the media
