For the first time, major institutional investors today called on S&P 500 companies to follow their European counterparts in using the Global Reporting Initiative (GRI) to improve their public disclosure to shareholders on pressing environmental and social issues. The announcement comes as GRI today unveiled new reporting guidelines, called G3, that elevate climate change as a key disclosure topic for companies to include in public reports...More than 1,000 companies are currently issuing GRI-based sustainability reports, but fewer than 100 of those companies are in the U.S...The New York City Comptroller's Office and other investors...have filed dozens of shareholders resolutions in recent years with electric power, oil and auto companies requesting reports on their potential exposure from new climate regulations and other climate-related risks. More than a dozen companies, including American Electric Power and Ford, have since published these reports. [also refers to GRI reporters Baxter, PPL]