Climate change has emerged as a significant environmental issue affecting biodiversity across the globe, including insect populations that play crucial roles in ecosystem functioning. The present study investigates the impact of climate change on insect populations in Ghaziabad, Uttar Pradesh, using a reviewbased and analytical approach. The study focuses on variations in temperature, precipitation patterns, urbanization, and pollution levels and their effects on insect diversity, distribution, and population dynamics. Data were collected from scientific literature, regional environmental reports, and biodiversity studies relevant to northern India. The findings indicate that rising temperatures, habitat fragmentation, and changing seasonal cycles are leading to shifts in insect abundance, phenology, and species composition. Beneficial insects such as pollinators are declining, while certain pest species are increasing. The study highlights the urgent need for ecological monitoring and sustainable urban planning to protect insect biodiversity in rapidly developing regions like Ghaziabad.