G20 countries have a critical role to play in leading efforts to combat climate change, as they account for 79% of global greenhouse gas emissions. In 2009, they committed to phasing out fossil fuel subsidies in the medium term, and since then many have played an important part in driving...

Biofuels have gone from being hailed as a greenalternative to fossil fuels to being accusedof increasing global warming, causing loss offorests and other valuable habitats, and ofincreasing poverty in the developing world. This brief examines some of the key issues surrounding biofuels and...