Researchers have introduced an innovative approach to address climate change by integrating solar thermal energy-assisted direct air capture (DAC) technology with green methanol production. Climate change, caused by human activities like burning fossil fuels, has detrimental effects on the environment. DAC technology, specifically solid sorbent-based DAC using metal-organic frameworks (MOFs), offers efficient CO2 capture with low energy consumption. The study combines CO2 capture using solar thermal energy-assisted DAC with converting CO2 into liquid methanol, emphasizing MOFs as the solid sorbent. The research evaluates the environmental impact across the system's life cycle, showcasing improved CO2 capture efficiency and reduced energy consumption compared to conventional DAC methods. Conversion of captured CO2 into methanol using renewable hydrogen significantly reduces greenhouse gas emissions. The integrated system has the potential to substantially decrease global warming potential per unit of methanol produced, serving as a sustainable alternative to fossil fuels. The technology's applications span clean-burning fuel for transportation and feedstock for the chemical industry, contributing to global efforts in combating greenhouse gas emissions and promoting energy security. The study highlights the need for further research and development to enhance this integrated system's performance and environmental impact, potentially revolutionizing traditional CO2 capture methods and advancing towards a more sustainable future.