Investors continue to target the Pebble prospect, with the latest salvo coming from the trustees of pensions funds for California and New York City that hold “substantial” shares in Pebble investor Rio Tinto. In a short Dec. 19 letter expressing their personal views, John Chiang, controller for California, and John Liu, comptroller for New York City, tell Rio Tinto chief executive Sam Walsh they want London-based Rio Tinto to divest its 19 percent stake in the huge copper-and-gold prospect located in Southwest Alaska. LINK (via: Alaska Dispatch)