Calpers, Carlyle in ESG Data Push for $4 Trillion of Funds (1)

Investors overseeing more than $4 trillion are banding together to standardize data on environmental, social and governance performance of portfolio companies, in an effort led by the largest pension and one of the largest private-equity funds in the U.S.

The California Public Employees’ Retirement System and Carlyle Group Inc. helped rally a group of more than a dozen investors to share and privately aggregate information related to emissions, diversity and the treatment of employees across closely held companies. More firms and institutions are expected to join.

“We need to start a common language across all these participants so we can ...