Some of Mexico’s glaciers may be gone by the year 2023. It’s tricky to estimate exactly when the massive chucks of ice will become extinct, but at least one glaciologist believes the glaciers of Iztaccihuatl, a dormant volcano and the country’s third tallest, could be gone within the next decade—or even sooner. Related: Archaeologists Race Melting…

Jakub Hejtmánek at Czech Wikipedia [GFDL (http://www.gnu.org/copyleft/fdl.html) or CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0/)], via Wikimedia Commons