ESG (Environmental, Social and Governance) investing refers to a class of investing that is also known as “sustainable investing.” This is an umbrella term for investments that seek positive returns and long-term impact on society, environment and the performance of the business. There are several different categories of sustainable investing. They include impact investing, socially responsible investing (SRI), ESG and values-based investing. Another school of thought puts ESG under the umbrella term of SRI. Under SRI are ethical investing, ESG investing and impact investing.