As the possibility of living in a carbon constrained world becomes more and more a reality, many companies are rethinking their business models and integrating sustainability factors into their business models to address the environmental and social risks they face. But companies are not the only ones that need to put sustainability at the top of their agenda. Investors are growing increasingly aware of the risks that climate change, water scarcity, workplace conditions and other sustainability issues present to companies’ bottom lines. Some of these investors, like the California State Teachers' Retirement System – the largest U.S. teacher’s retirement fund and second largest U.S. public pension fund – are not only telling companies to minimize these environmental and social risks in their business plans, but are actually taking proactive steps to ensure that their own investment practices embrace sustainability from the top down. in this episode we’re joined by Jack Ehnes Chief Executive Officer of CalSTRS to talk about the role investors play in creating sustainable companies – and how the recently released Ceres Roadmap for sustainability can be used by investors to help evaluate a company’s sustainability performance and move us closer to a more sustainable economy.

[Music: Galatic, "Tighten Your Wig," from Crazyhorse Mongoose (Volcano, 1998); Sunset Rubdown, "You Go On Ahead (Trumpet Trumpet II)," from Dragonslayer (Jagjaguwar, 2009)]