Climate change represents one of the most pressing global challenges of the 21st century, with its adverse impacts felt across all regions and sectors. International law plays a critical role in addressing this crisis by establishing legal frameworks, guiding cooperation among states, and ensuring accountability. This article examines the evolution of international climate law, its existing legal frameworks, and the mechanisms designed for enforcement. It highlights key treaties, agreements, and protocols, such as the Kyoto Protocol and the Paris Agreement, and evaluates their effectiveness in combating climate change. The article also identifies challenges in enforcement, including issues of sovereignty, economic disparities, and political reluctance, and provides recommendations for strengthening international cooperation. By exploring future directions in international law, the article underscores the need for innovative mechanisms, enhanced accountability, and collaborative approaches to ensure a sustainable future for all.