SPIEGEL ONLINE Interview with Former UNEP Head Klaus Töpfer 'Protecting Biodiversity Is Critical to Mankind's Survival'

Protecting endangered species is as important to the survival of mankind as protecting the climate, says Klaus Töpfer. In an interview with SPIEGEL ONLINE, the former head of the United Nations Environment Program talks about the value of nature, failed efforts to protect endangered species -- and whether mammoth conferences make any sense.
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