World Wide Fund for Nature (WWF)
Global change poses enormous challenges to those responsible for managing the world's forests. There is perhaps no other ecosystem that is so closely linked to, and affected by, human induced changes to climate - being regarded simultaneously as a victim, a villain and a potential saviour. Concentrations of carbon dioxide methane and other greenhouse gases are rising at an accelerating rate in the atmosphere, largely as a result of emissions from human activities such as the burning of fossil fuels.