The mounting momentum behind carbon pricing provides one of humanity’s largest and most cost-effective hopes for squeezing the emissions out of large corporations and economies. Shifting this market force from a country-by-country approach to an international scale, however, will require oversight. The Organization for Economic Cooperation and Development (OECD) believes it is the right body to get things started, but its scope of control could simply slow down existing initiatives. Mathias Cormann, the head of the OECD – which encompasses 38 member states, mostly in Europe – pitched this idea to EU finance ministers behind closed doors in Slovenia this week. The Paris-based group, which has historically had success in forging transnational agreements on corporation tax, is aiming to move…