A new generation of state-level "green banks" is financing sustainable infrastructure and helping America build a low-carbon future. We are pleased to announce our new partnership with GreenBiz Group, a media and events company that accelerates the just transition to a clean economy. The following article originally appeared on GreenBiz.com. Quick, what do Alaska, Maine and South Carolina have in common? All three U.S. states are seriously evaluating the creation of green banks — financing institutions created with the explicit mission of combining public and private funds to invest in…