Rome, March 18 - Italian Environment Minister Corrado Clini on Monday said reports that cleaning up the environmental damage caused by the Costa Concordia shipwreck would cost the public purse 150 million euros were false. "A smoky curtain of disinformation is being raised about the Concordia, (something) which is at the same time irresponsible and pathetic," Clini said in an open letter to Italian daily L'Unita' and posted on the ministry's website. In his letter Clini wrote that there were "facts and actions" which proved how "the smoke dissolves". The Concordia ran aground on reefs just off Giglio Island, off the coast of Tuscany, in January 2012. More than 30 passengers on the cruise liner were killed.