Warren M Anderson, who was the chairman of the US-based Union Carbide Corporation when a poisonous gas leak at the company’s plant in Bhopal killed thousands, is dead...Nongovernmental organisation EarthRights International had filed the lawsuit in the Southern District of New York on behalf of residents of Bhopal, saying land and water of the citizens are being contaminated by waste from the plant..EarthRights said as per the court's ruling, Union Carbide could not be sued despite evidence that construction of the plant was managed by an employee of the company...EarthRights expressed confidence that there was enough evidence against Union Carbide that would lead to a reversal of the "erroneous decision on appeal".