Climate change is significantly impacting the cryosphere, which includes glaciers, ice caps, and permafrost, leading to the potential release of ancient pathogens. As global temperatures rise, these frozen environments are melting, releasing microorganisms that have been preserved for millennia. This phenomenon poses serious risks to human and animal health, as these pathogens may be unfamiliar to contemporary immune systems, potentially leading to new disease outbreaks. The melting of glaciers not only contributes to rising sea levels and alters ecosystems but also mobilizes pollutants and pathogens previously trapped in ice. The chapter discusses the mechanisms through which climate change facilitates the release of pathogens, including the accelerated melting of glaciers and thawing of permafrost. Historical cases, such as the anthrax outbreak in Siberia and the revival of ancient viruses, underscore the urgency of this issue. The environmental and economic impacts of these pathogens are profound, affecting biodiversity, ecosystem stability, and healthcare costs. Effective management strategies are essential to mitigate the risks posed by thawing pathogens. This includes robust monitoring systems, public health education, and international cooperation to address the transboundary nature of emerging diseases. The chapter emphasizes the need for sustainable practices to combat climate change, highlighting the importance of transitioning to renewable energy, preserving natural ecosystems, and fostering community awareness. Ultimately, addressing the challenges of climate change and its impact on the cryosphere is crucial for safeguarding public health and ensuring ecological resilience.