"Since the Rio 'Earth' Summit of 1992, sustainable development has become the major policy response to tackling global environmental degradation, from climate change to loss of biodiversity and deforestation. Market instruments such as emissions trading, payments for ecosystem services and timber certification have become the main mechanisms for financing the sustainable management of the earth's natural resources. Yet how effective are they -- and do they help the planet and developing countries, or merely uphold the economic status quo? This book investigates these important questions."