This special report on renewable energy sources and climate change mitigation (SRREN) of the IPCC working group III provides an assessment and thorough analysis of renewable energy technologies and their current and potential role in the mitigation of greenhouse gas emissions.

As co-chair of Working Group III of the Intergovernmental Panel on Climate Change (IPCC), I would like to clarify your misleading implication that I recommend geoengineering as an option for attaining ambitious climate targets (Nature 468, 13

Developed countries are largely responsible for the climate change to date, but future responsibility is shared by developed and developing countries alike. Rapidly developing countries such as China with steeply rising emission curves must also

The long-term trends in global damage statistics leave no doubt that weather disasters have increased dramatically

In their Commentary 'Dangerous assumptions' (Nature 452, 531