This raised doubts over whether SEC rules would survive a court challenge. An SEC spokesperson declined to comment on Scope 3 emissions and when the climate disclosure rules will be finalized. Even some advocates of climate action have expressed concerns about the logistical challenges of accurately calculating Scope 3 emissions. For many businesses, however, Scope 3 emissions represent more than 70% of their carbon footprint, according to consulting firm Deloitte. Some voluntary initiatives such as the International Sustainability Standards Board already specify that it is best practice to disclose Scope 3 emissions.

---

Persons: Rebecca Cook, Gary Gensler, Joe Biden's, Biden, Gensler, Jarrett Renshaw, Douglas Gillison, Isla Binnie, Chris Prentice, Ross Kerber, Simon Jessop, Michelle Price, Greg Roumeliotis, David Gregorio Our Organizations: REUTERS, U.S . Securities, Exchange Commission, SEC, Union, Republican, Commission, Democrat, Deloitte, Gensler, Republican SEC, Sustainability, U.S . Chamber, Commerce, Thomson Locations: Detroit , Michigan, U.S, CALIFORNIA, California, Washington, New York, Boston, London