Investor groups have asked the US Securities and Exchange Commission to make corporations disclose risks related to social and environmental risks.

In a letter signed by some of the country's biggest pension funds, the group called on the regulator to issue guidance on materiality as it relates to climate change risks, and to enforce existing requirements related to the disclosure of climate and other risks.

The SEC has often been criticized in recent years for failing to enforce rules that should result in corporations disclosing material environmental risks.