Agence France-Presse: While a collapse of the West Antarctic ice sheet will have devastating impacts on global sea levels, a study published Thursday found the anticipated impact has been seriously overestimated. Using new measures of the ice sheet’s geometry, British and Dutch researchers predict its collapse would cause sea levels to rise by 3.2 meters (11 feet) rather than previous estimates of five to seven meters. However, the study published in the journal Science found that even a one meter …