Reuters: The U.N. Climate Panel says seas could rise by 18-59 cms (7-24 inches) by 2100, without taking account the possible acceleration of a melt of ice sheets in Antarctica or Greenland. Even a small thaw of Antarctica and Greenland would affect sea levels since together they lock up enough ice to raise sea levels by about 65 meters (215 feet) if they all melted. Following are responses to questions from Reuters by a leading glaciologist as part of an ad-hoc global series of top …