The intersection of international environmental treaties, climate change, and public health is a crucial area of study and action in a transforming global landscape. The chapter underscores the complex relationship between these three fields, exploring the ways international agreements strive to safeguard the environmental impact on public health outcomes worldwide. Environmental treaties and public health are vastly studied in their respective areas of study. However, putting together these three fields serves as a crucial framework for addressing pressing issues such as climate change, land/air/water pollution, deforestation, and biodiversity loss. Through the establishment of global regulatory standards, collaborative mechanisms, and enforcement protocols, these treaties seek to mitigate the adverse effects of human activities on the environment. The ramifications of environmental degradation extend beyond ecological concerns to encompass profound implications for human health, and it has reached a tipping point of a global health catastrophe. By examining the myriad of literature and empirical research, this research paper highlights the direct and indirect pathways through which environmental degradation influences public health, including exposure to toxic substances, waterborne illnesses, respiratory diseases, and the exacerbation of climate-related health threats. Moreover, it emphasizes the role of international cooperation and policy interventions in addressing these challenges, with a need for integration of health inside climate policy. In conclusion, this research will underscore the urgent need for concerted action at the international level to promote environmental sustainability and protect public health in an increasingly interconnected world.