Some of the biggest U.S. pension funds would be now $21 billion richer if they had divested from fossil fuels a decade ago, a new study by the University of Waterloo in partnership with environmental organization Stand.earth has shown. The study analyzed the 2013-2022 performance of eight U.S. pension funds, including California Public Employees' Retirement System, California State Teachers' Retirement System, and the New York State Teachers' Retirement System. Researchers found that the cumulative value of the public company equity portfolio of…