This paper explores how climate change affects human health, agriculture, and biodiversity. By reviewing recent studies and data, it looks at how rising temperatures and harsh weather crisis, such as floods and droughts, impact species distribution, yield of crop, and diseases spread. The research shows that higher temperatures are causing many species to migrate, leading to biodiversity loss. It also highlights how extreme weather is reducing crop productivity and elevating the risk of diseases spread by insects. The paper calls for combined efforts to mitigate and adapt to these changes to conserve ecosystems, ensure security of food, and safeguard public health. The study delves into the specifics of how climate change disrupts natural habitats, forcing species to move to new areas where they might not survive. This migration leads to a decline in biodiversity; thus species fail to adapt to new environments. Additionally, the paper examines the climate change impacts on agriculture, noting that extreme weather catastrophes can devastate crops, leading to lower yields and threatening food security. For instance, prolonged droughts can dry up essential water sources, while intense floods can wash away fertile soil and crops. Moreover, the research highlights the elevated risk of diseases borne by vectors, such as dengue fever and malaria, which are becoming more prevalent as changing precipitation patterns and warmer temperatures create suitable conditions for disease-carrying insects. This shows a significant threat to public health, especially in already vulnerable regions. In conclusion, the paper emphasizes the need for integrated strategies that combine mitigation and adaptation efforts. By minimizing greenhouse gas emissions and implementing adaptive strategies, such as developing climate-resilient crops and improving public health infrastructure, we can better protect our ecosystems, ensure stable food supplies, and safeguard human health against the adverse consequences of climate change.