Lemoine’s chapter provides a model by which carbon pricing and trade systems may exists as a result of the Kyoto Protocol. More specifically, the perspective that cap and trade systems may aid in the progress desired by the signatories on the Kyoto Protocol is explored. The tool is named the Clean Development Mechanism (CDM), this is the only way that they are able to involve regulations of greenhouse gases (GHGs). Simply, there is the ability to fix a price on the act of emitting GHGs, and ideally there will be a cap on the amount of these gases. The market for the credits to do so, would in effect allow nations who need to do it to be able to, while those more developed nations are able to sell the credits for a gain. However, there are regionalities to the effectiveness of the CDM projects, with the vast majority of them being on the Asian continent. The Kyoto Protocol defines that CDMs must be able contribute to the sustainable development for the nation. Lemoine explores this definition and determines that there is not a succinct way to determine if in fact the CDMs are sustainable, and what the contributions may be. Little oversight is present to determine the answer to these questions, and these distinctions are increasingly necessary.