The article discusses challenges and policies related to climate change, focusing on the Kyoto Protocol and future climate agreements. It covers topics like the EU's emissions trading system, legal issues, implementation challenges in various countries, and strategies for mitigating climate change post-2012. Key themes include the need for international cooperation, barriers to implementation in some regions, and the importance of involving developing countries in climate action. The research suggests that addressing climate change requires a global effort involving multiple stakeholders and innovative approaches beyond the Kyoto Protocol.