A new WWF report warns that the Greater Mekong subregion in Southeast Asia risks losing more than a third of its natural forest cover in the next two decades at current rates of deforestation. The region, which is host to vital freshwater systems and forests depended upon by iconic species and a huge human population, is threatened by dam development, poaching and timber theft. The local governments have also given away large concessions to mining companies and plantation owners in designated protected areas.