By Anna Ellis, CME Group Global ESG assets may soon surpass $41 trillion, while trading in futures on the S&P; 500 ESG Index have soared by more than 100%. S&P; Dow Jones Indices implemented new eligibility requirements for their ESG indices in May, which excluded companies involved in activities like oil sands and military contracting. As the Environmental, Social, and Governance (ESG) ecosystem evolves and the number of investors grows, ESG investments must keep pace. In the equity world, this evolution translates to index providers working to match rapidly developing ESG demands. Changing E…