CalSTRS Public Equity Internal passive funds exclude some specific securities based on their ESG profile in consideration of CalSTRS 21 Risk Factors. http://www.calstrs.com/sites/main/files/file-attachments/esg_policy_and_21_risk_factors.pdf
CalSTRS also ha a $2.5 commitment to a Low Carbon Index. https://www.calstrs.com/news-release/calstrs-commits-25-billion-low-carbon-index