With climate change posing as one of the gravest threats to capital accumulation - not to mention humankind and our environment - in coming decades, it is little wonder that economists such as Sir Nick Stern, establishment politicians like Chancellor of the Exchequer Gordon Brown and US Democrat Al Gore, and financiers at the World Bank and in the City of London have begun warning the public and, in the process, birthing a market for carbon dioxide (CO2) emissions.