Currently, climate change is considered one of the most urgent global issues. Temperature and precipitation are two meteorological variables that have exhibited significant changes in long-term averages. Forecasts suggest that the global average temperature will persist in rising, with an anticipated increase of 2 °C by 2100, resulting in substantial economic losses worldwide. Increasing CO2 concentrations, a significant component of greenhouse gases, have facilitated plant growth and productivity via enhanced photosynthesis; conversely, elevated temperatures adversely affect these processes by reducing harvest durations, exacerbating pest infestations, altering weed species and elevating crop respiration and evapotranspiration rates. Climate change affects both soil bacteria and the enzymes they generate. This analysis examines the financial implications for the agricultural industry, emphasising the interrelated and consequential relationship between climate change and pesticide use. The study explores how shifting climatic conditions such as altered temperature and precipitation patterns which affect agricultural productivity, pest populations and the subsequent reliance on pesticides. Through a combination of economic modelling and empirical data, the research highlights how climate change drives changes in crop yields, pest dynamics and pesticide application rates, leading to significant economic consequences for farmers and the broader agricultural sector. The findings reveal the dual economic burden of climate change: reduced crop yields and increased costs associated with higher pesticide use. Additionally, the study examines the broader economic effects on food prices, market stability and farm profitability. Policy measures and adaptive strategies are discussed, focusing on mitigating adverse economic impacts while promoting sustainable agricultural practices. Policymakers, farmers and other stakeholders can use the analysis’s key findings to build more resilient and sustainable agricultural systems that can withstand the effects of climate change.