Apollo Global Management Inc, Ares Management Corp. and Oaktree Capital Management are among firms that have agreed to collect data on greenhouse emissions, workplace fatalities and women in board seats of portfolio companies. They join a group convened by Carlyle Group Inc. and the California Public Employees’ Retirement System, according to a statement Friday.

The group’s growing heft  — $8.7 trillion in total assets — gives it new sway over the debate in Washington over whether the industry needs new environmental, social and governance reporting rules. In March, then-acting Securities and Exchange Commission Chair Allison Herren Lee asked the industry about what climate disclosures privately-listed companies were making.

The group has agreed to collect information on ESG metrics, including specific kinds of emissions. A third party will aggregate the data and produce benchmarks. The group has also come up with a template so investors can request that information from their asset managers. Bloomberg LP, parent of Bloomberg News, is a provider of ESG data. 

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