(born 1961 in Brazil) is a German expert in environmental politics. From 2001 to 2006 he was Director General of the International Union for Conservation of Nature and Natural Resources (IUCN). Since June 2006 he has been Executive Director of the United Nations Environment Programme (UNEP).
Restoration of peatlands is a low hanging fruit, and among the most cost-effective options for mitigating climate change. - IUCN UK Commission of Inquiry on Peatlands Full Report, IUCN UK Peatland Programme October 2011 page 8