 This study looks at the short and long-term effects of fossil fuels, renewable energy, and nuclear energy on CO2 emissions in the South Asian Association for Regional Cooperation, SARC, countries from 1982 to 2021. The results indicate that EKC does not hold in SARC, and a U-shaped quadratic link exists between GDP and environmental pollution. This article was authored by Leighton Chandravomik, Muhammad Iqbal Hossain, M.D. Hassan Aram and others.