Cities can effectively integrate green infrastructure by incorporating a wide variety of nature – based solutions in to reduce urban air pollution and mitigate the heat island effect. Planting urban forests, green roofs, and walls can also significantly lower ambient temperatures by providing shade and facilitating evapotranspiration. Trees and vegetation also absorb pollutants like carbon dioxide, nitrogen oxides, and particulate matter, improving air quality. Expanding parks and green spaces allows for cooler microclimates and offers residents relief from heat, while permeable surfaces such as green pavements help manage stormwater, reducing runoff and cooling the air. Establishing green corridors, which connect the parks and other green areas, enhances biodiversity and encourages active transportation modes like walking and cycling, reducing vehicle emissions. To maximize the effectiveness, green infrastructure should be strategically placed in the pollution hotspots and areas most affected by the heat island effect. Policies that incentivize rooftop gardens, urban agriculture, and community – led greening projects can foster public participation. The integration of the green infrastructure into urban planning and zoning the regulations ensures long-term sustainability, while a continuous monitoring and maintenance ensure that the infrastructure remains effective. By combining these approaches, cities can create healthier, cooler, and more resilient urban environments.