(FILES) In this file photo taken on July 4, 2022, shows the glacier that collapsed the day before on the mountain of Marmolada, the highest in the Dolomites, one day after a record-high temperature of 10 degrees Celsius (50 degrees Fahrenheit) was recorded at the glacier's summit. - UNESCO warned that a third of the world's glaciers, including Kilimanjaro, Yellowstone and Mont-Perdu will disappear near 2050,"whatever way the climate scenario develops", and called to "drastically reduce CO2 emissions" to conserve the other two thirds, as this spring's IPCC report says ice and snow melting is one of the ten major threats caused by climate change. (Photo by Pierre TEYSSOT / AFP)