The renowned primatologist and conservationist on the need for scientific empathy, the impact of economic development, and why children give her hope for the future
Vocal school food campaigner Jackie Schneider on parent power, the importance of cooking from scratch and why free school meals would be the most cost-effective solution
Anne Power, Professor of Social Policy Housing and Social Exclusion at the London School of Economics, on why nearly all homeowners can afford to insulate properly, and how to save energy on a budget
Former editor of New Scientist and author of After The Ice: Life, Death and Politics in the New Arctic on climategate, polar military activity and the icecap's chances
Former Director of the Tyndall Centre and a Professor at the University of East Anglia, Andrew Watkinson explains why 'a few loose sentences' in the IPCC report shouldn't change people's opinion of the science
Filmmaker Robert Kenner's documentary Food Inc has shocked audiences across the US with its stark portrayal of industrial agriculture. And that's just the bits the lawyers let you see...
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
Deutsche Bank economist Pavan Sukhdev is heading up the groundbreaking TEEB (The Economics of Ecosystems and Biodiversity) report and doing for nature what Sir Nicholas Stern did for climate change - valuing it
Former deputy editor of the Ecologist, Paul Kingsnorth, tells Matilda Lee why an obsession with CO2 has distracted environmentalists, and why we may already be beyond the point of no return...
Ecological campaigner Million Belay talks about why protecting Ethiopia's biodiversity is so important and why he opposes the intervention of philanthropists like Bill Gates
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