Urbanization is a major factor contributing to increased carbon emissions as cities expand and populations grow. Urban areas are responsible for more than 70% of global greenhouse gas emissions, primarily due to transportation, energy consumption, and waste generation. High-density living can lead to efficient public transport systems, which reduce individual car use, thereby lowering emissions. However, without effective planning, urban sprawl can exacerbate emissions through increased reliance on cars and energy-intensive infrastructure. To mitigate this impact, cities must prioritize sustainable development, invest in green spaces, enhance public transport, and promote energy-efficient buildings to create low-carbon urban environments for future generations.