Glaciers can shrink many meters per year
| This image of the Franz Josef Glacier was taken in 1964 (courtesy World Data Center for Glaciology). See the previous image to see how far this glacier has retreated in just 13 years. |
Credit: World Data Center for Glaciology; National Snow and Ice Data Center
For more info: http://nsidc.org/glaciers/gallery/FJ1951_retreat.html