Brett Bonfield writes: “When it comes to the ALA’s more than $66 million endowment, we trustees are mindful of the ethical impact of the Association’s investments. That’s where ESG, or environmental, social, and governance, investing comes in. ESG investing refers to the practice of incorporating environmental impact, social issues, and corporate governance into investing decisions. This column will answer the primary questions that endowment trustees are asked about ESG investments and how ALA approaches them.”