BlackRock CEO Larry Fink recently made a splash by threatening to vote against corporate managers who don’t disclose an array of non-financial information as directed by the Sustainability Accounting Standards Board. But what is SASB, and where is this all going?

Jean Rogers founded SASB in 2011. Bloomberg Philanthropies made its first grant to SASB in 2012 and has been a major financial supporter. A former Bloomberg LP official, Curtis Ravenel, described Bloomberg as a “founding partner“ of SASB in an interview on the SASB...