Hans Curtius and Tobias Vorlaufer examine the success of CDM projects in the biogas sector of China, where the majority of biogas projects are in the food processing industry. By September 2009, 34 projects were either registered or in validation process at the UNFCCC, which account for 2% of all projects. They conclude that these projects are not expected to meet the CDM goal of contributing to sustainable development because of low operation skills and inadequate technology due to low foreign technology and know-how transfer. Curtius and Vorlaufer point out that inadequacies in the international CDM framework and complications with national regulations and legal obstacles also hinder these biogas plants to operate for successful sustainable development. A new CDM framework or reform must be in place to improve biogas project operations in China.
Torn between countries demanding that Article 6 carbon markets be available with virtually no restrictions and countries insisting on upholding transparency, human rights, and climate ambition, negotiators at COP28 failed to break the deadlock. With all the unresolved problematic issues, the fact that they reached no deal was better than agreeing to a bad one that would torpedo the Paris Agreement.