This report offers the results of a survey of approximately 1,000 financial advisors in the United States regarding their ideas about “sustainable” investment, which involves aiming to generate a financial return while also creating social or environmental benefits. The survey examines: (1) the interest levels of investors in sustainable investing; (2) barriers to recommending sustainable investments and solutions to these barriers; and (3) the market potential for the incorporation of sustainable investments into client portfolios. The survey found that 21 percent of advisors surveyed showed high interest and engagement in sustainable investment, 16 percent of advisors showed interest and were relatively engaged, 25 percent were interested but not significantly engaged, 25 percent showed little interest and engagement and 13 percent demonstrated very little interest in such investment. Advisors saw three major barriers to sustainable investing: (1) perceptions of insufficient track records and weak financial performance; (2) perception of insufficient client demand; (3) lack of access to research and information; and (4) lack of comfort in advising clients on such investment. Overall, 69 percent of advisors saw such investment as an opportunity to expand their companies. One estimate of the sustainable investing market potential is USD 650 billion.