According to the Dauphine Libere the summit of le Mont Blanc has lost 45cm over the last couple of years. The ice summit has also shifted location, 26 meters to the east, towards Italy.
The quantity of snow above 4 800 meters altitude is still more than 21,000 m³, that is 7,000 m3 more than during the 2003 heat wave but it has lost 2,500 m³ over the last couple of years. There is no risk of the summit melting in the foreseeable future, the average summit temperature is -17C.
In 2007 the height increase was attributed to global warming with warm westerlies bringing more moist snow at altitude. According to the weatherman the last couple of years haven’t seen so many of these air flows, hence the ice loss. There is always a logical explanation for everything if you try .
The rock summit is at 4792 meters, some 18 meters below the real summit. The rock summit is also growing, by 1mm a year due to land movements between the European continent and Africa.