Climate change is increasingly recognized as one of the most critical challenges ever to face humankind. With the release of the Fourth Assessment Report of the Intergovernmental Panel on Climate Change (IPCC), the international scientific community has significantly advanced public understanding of climate change and its impacts. In this report, the IPCC concluded that “warming of the climate system is unequivocal, as is now evident from observations of increases in average global air and ocean temperatures, widespread melting of snow and ice and rising average global sea level”. The conclusions of the IPCC report made the case for action against climate change stronger than ever before. Climate change is a.