Agence France-Presse: Runoff from ice caps in Antarctica and Greenland along with melting mountain glaciers have replaced expanding oceans as the main driver of rising sea levels, according to a new study. The rate at which the global ocean water mark rises could have a devastating impact on hundreds of millions of people living in low-lying areas around the world. Earlier research had shown that sea levels crept up and average of 3.1 millimetres (0.12 inches) per year from 1993 to 2003. More …