Top 1000 Funds puts a spotlight on Tim Crockford, the head of impact investing at Hermes Investment Management.
Crockford said that impact investing is about finding the companies that are solving the "un-met" needs through products and services they are offering.
Speaking at the Robert F. Kennedy Human Rights Compass Investor Conference, Crockford said that impact investors "need to start with a problem they are trying to solve, not an opportunity set."
Crockford adds that impact allows investors to have their cake and eat it by meeting objectives of returns and having a positive impact on the environment and society.
According to Crockford, "If you can sell a product or service that helps solve this issue, then that will be a massive opportunity."
He points out Hermes, which has already published a taxonomy which outlines why a company's products and services contribute to a solving a particular problem.
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Global companies like General Motors, Wal-Mart, Bloomberg, Facebook, Hewlett-Packard, Intel, Johnson & Johnson, Mars, Novelis, Sprint, Proctor and Gamble and REI are calling out for necessary market changes to make it easier to buy and access more renewable energy.