The Clean Development Mechanism (CDM) is part of the Kyoto Protocol aiming to reduce greenhouse gas emissions and promote sustainable development in developing countries. CDM projects must reduce emissions and improve sustainability, following predefined guidelines. These projects are helping countries worldwide cut emissions and develop better methods for tracking progress. By collaborating with both developed and developing nations, the CDM encourages the shift to cleaner energy sources, like renewables, enhancing energy efficiency, lowering costs, and directing investments to developing regions.