Glaciers are a form of existence of water, and are transformed through a series of changes by snow.

To form a glacier, there must first be a certain amount of solid precipitation, including snow, fog and hail.

The Antarctic and North Pole on the earth are extremely cold all year round.

The large and small grains of snow squeeze each other and are closely embedded, and the pores between them shrink and disappear.

[citation needed] In the 1950s, in order to develop and construct the Hexi Corridor, Gansu Province and the Chinese Academy of Sciences agreed to carry out large-scale investigations on the Qilian Mountain glaciers, and planned to use the semi-annual period to clarify the distribution and quantity of glacial resources in the Qilian Mountains.

The team consisted of hundreds of people and hired Glacier expert Dawl Gusin of the Soviet Union as a consultant.

The reporter captured the change in the July 1 glacier that is located in the hinterland of the Qilian mountains: compared with two years ago, the ice tongue had shrunk significantly.

[1] Content in this page is translated from the existing Language Wikipedia article at zh:七一冰川; see its history for attribution.