Peter Fretwell's study reveals high risk of no chick survival in four of five known colonies due to premature sea ice loss before feathers are waterproofed.

In the remainder of the century and if urgent measures are not taken to stop global warming, a minimum of 60% of the glaciers of the entire globe could disappear before 2100.

The results of this new study, published in the journal Geophysical Research Letters, completely change the conception of melting in this part of the world.

The average rate of retreat of the largest glacier in Uttarakhand, about 30 kilometres long, between 0.5 and 2.5 kilometres wide and with an area of ​​143 square kilometres, was 20 meters a year between 1935 and 1996