Pacific Hydro generates carbon credits through projects recognised under the Kyoto Protocol’s Clean Development Mechanism (CDM). CDM recognises projects that reduce carbon emissions in developing countries and rewards them with tradable credits called Certified Emission Reductions (CER). As these developing countries do not have any Kyoto targets of their own, these CER’s can be sold on to countries that do, allowing those countries to meet their targets without actually having to make any cuts. Under the global Kyoto agreement, a CER is proof enough that the world’s net greenhouse gas has been reduced. One CER equates to an emission reduction of one tonne of CO2.