Reducing global atmospheric greenhouse gases is becoming an urgent matter. The significance of greenhouse gas emission reduction credits is rising as the Kyoto Treaty has now entered into force and non-signatory countries are also developing various mechanisms to reduce greenhouse gases. This trend is also reflected in the activities of the Regional Greenhouse Gas Initiative (RGGI), the California Climate Registry (CCAR), the Canadian Domestic Emissions Trading System, the Chicago Climate Exchange (CCX), the European Union Greenhouse Gas Emission Trading Scheme (EU ETS) and many other national and international initiatives. Credits are generally created through the application of an emission reduction or avoidance methodology, which includes the specific technologies and protocols. The value of these credits can be determined in a market by supply and demand. However, methodologies, technologies and protocols may vary greatly. This variation can affect the overall quality and value of the credit being generated. The quality and value of a credit will directly affect its ability to shed corporate risk. Risk is shed when a credit is based on sound science coupled with correct implementation with third party validation and verification.