Environmental, social, and governance (ESG) investing has become increasingly popular in recent years, as investors seek to align their financial goals with their values and support companies that are committed to sustainability and responsible business practices. ESG funds, which invest in companies that meet certain ESG criteria, have emerged as a popular option for socially conscious investors. This research article aims to provide a comprehensive review of the growth and performance of ESG funds, and to assess the impact of ESG investing on portfolio risk and returns.