Climate change has emerged as one of the greatest environmental and socio-economic challenges of the 21st century, reshaping the dynamics of global geography at multiple scales. Driven primarily by anthropogenic greenhouse gas emissions, its manifestations include rising global temperatures, shifting precipitation patterns, melting glaciers, and intensifying extreme weather events. These changes are not only transforming the physical landscape of the Earth but also profoundly influencing ecological systems, human societies, and economic activities. From a physical geography perspective, climate change has accelerated sea-level rise, increased desertification, altered hydrological cycles, and led to the retreat of polar ice caps and mountain glaciers. These shifts directly impact landforms, ecosystems, and natural processes, producing long-term geographical transformations. Similarly, the biogeographical impacts are visible in changing species distribution, biodiversity loss, and ecosystem disruptions, which threaten the stability of forests, coral reefs, and wetlands. Such changes challenge the resilience of both flora and fauna, reshaping ecological balances and habitat networks globally. The human geography dimension highlights climate change as a socio-spatial phenomenon that influences patterns of settlement, agriculture, urbanization, migration, and health. Vulnerable communities in low-lying coastal regions, small island states, and drought-prone areas face heightened risks, leading to displacement, food insecurity, and resource-based conflicts. Moreover, climate change exacerbates existing socio-economic inequalities, raising critical questions of climate justice—where those least responsible for emissions often suffer the most severe impacts. Adaptation and policy responses are central to addressing these challenges. Initiatives such as the Paris Agreement, National Adaptation Plans (NAPs), renewable energy transitions, and sustainable urban planning represent coordinated efforts to mitigate risks and foster resilience. Localized strategies, including climate-smart agriculture, coastal defenses, and community-based adaptation, also play a vital role in reducing vulnerability. Yet, gaps in financing, governance, and global cooperation remain significant obstacles. In conclusion, climate change is not merely an environmental concern but a transformative force that intersects with physical, biogeographical, and human geography, reshaping the spatial organization of life on Earth. Understanding its impacts requires an integrated, interdisciplinary approach that combines scientific knowledge with equitable policy-making. Only through collective action, informed adaptation, and global cooperation can humanity safeguard its future and ensure a sustainable, just, and resilient world.