Group 1 - The introduction of international emissions trading at COP3 in 1997 aimed to help countries meet their emission reduction commitments through the purchase of carbon credits [1] - The carbon market is divided into mandatory and voluntary types, with Europe leading the establishment of emissions trading systems, followed by countries like China, South Korea, Japan, and Australia [1][3] - The lack of a unified international standard has hindered the establishment of a robust market, with the Paris Agreement's Article 6 still facing challenges in implementation due to verification method issues [1][8] Group 2 - The UN approved the "Paris Agreement Carbon Credit Mechanism" (PACM) in May 2025, providing guidance for evaluating the effectiveness of emission reduction projects [1] - The new standards include a baseline standard to estimate potential emissions without the mechanism and a leakage standard to account for unintended emissions increases [1][15] - The establishment of the "Development Carbon Market Alliance" by Singapore, Kenya, and the UK signifies a government-led initiative to advance carbon markets [2] Group 3 - Carbon markets help achieve emission reduction goals at lower costs, enhancing economic efficiency and promoting energy conservation awareness [3] - Major carbon markets include the EU carbon market and China's national carbon market, with the EU market being a mature example using an absolute cap-and-trade model [3][4] - China's carbon market, launched in July 2021, covers approximately 5.1 billion tons of CO2 emissions and includes 2,257 key emitting units [4] Group 4 - The Kyoto Protocol established the Clean Development Mechanism (CDM) in 2005, allowing developed countries to obtain certified emission reductions (CERs) through projects in developing countries [5] - The carbon market's core function is to create a carbon price signal that guides emission reduction actions, with the expectation that carbon prices will rise as emission caps tighten [5][6] Group 5 - The EU carbon market has seen a significant price increase, with expectations that prices will exceed €120 per ton by 2030 and €400 by 2040, reflecting the costs of advanced reduction measures [6] - The demand for carbon markets from countries is driven by the need to achieve climate goals cost-effectively, with different mechanisms in place across regions [6][7] Group 6 - The establishment of national carbon markets is crucial for countries to meet their Nationally Determined Contributions (NDCs) under the Paris Agreement [7][9] - The EU's carbon market has undergone structural reforms to recover carbon prices after a prolonged period of low prices due to oversupply [7][9] Group 7 - The challenges in creating a global carbon market include historical issues with previous mechanisms and differing national interests between developed and developing countries [9][11] - The complexity of mechanism design and the need for clarity in methodologies and standards are significant barriers to establishing a unified global carbon market [9][10] Group 8 - The implementation of new standards aims to enhance the quality of carbon credits and ensure the authenticity of emission reductions, promoting high-quality development in global carbon markets [15][16] - Future directions include improving verification processes, enhancing international cooperation, and integrating carbon markets with global climate actions [15][17] Group 9 - China's transition from a seller to a buyer in the international carbon market poses challenges in aligning domestic mechanisms with international standards [19][20] - The national carbon market's tightening control over emissions will support China's dual carbon goals while balancing domestic and international climate trade requirements [20][21]