Hardtalk is in the heart of the English countryside, a habitat that is rich in wildlife but for how much longer? The impact of human beings here, as in so much of the world, is putting enormous pressure on natural ecosystems. Stephen Sackur speaks to Chris Packham, one of Britain’s best known naturalists and campaigners for wildlife protection. Is it time to radically rethink man’s relationship with the natural world?(Photo: Chris Packham)