The presence of one of the world's pre-eminent environmentalists at Apple's shareholder meeting Thursday was the subject of much of the morning's pointed discussion. As expected, Apple's attitude on environmental and sustainability issues was one of the main concerns of the stockholders present Thursday, followed closely by the company's immense pile of cash. But early harsh comments about former Vice President Al Gore's record set the tone. Al Gore speaks about the smart grid last November at a VentureBeat green-tech conference. (Credit: Josh Lowensohn/CNET) Gore was seated in the first row, along with his six fellow board members, in Apple's...