Photo taken with a mobile phone on April 24, 2021 shows a view of Mount Qungmknag in Nyemo County of Lhasa, southwest China`s Tibet Autonomous Region. (Xinhua/Shen Hongbing)

Photo taken with a mobile phone on April 24, 2021 shows glacier at the foot of Mount Qungmknag in Nyemo County of Lhasa, southwest China`s Tibet Autonomous Region. (Xinhua/Shen Hongbing)

Photo taken with a mobile phone on April 24, 2021 shows the glacial landform at the foot of Mount Qungmknag in Nyemo County of Lhasa, southwest China`s Tibet Autonomous Region. (Xinhua/Shen Hongbing)

Photo taken with a mobile phone on April 24, 2021 shows the glacial landform at the foot of Mount Qungmknag in Nyemo County of Lhasa, southwest China`s Tibet Autonomous Region. (Xinhua/Shen Hongbing)

Photo taken with a mobile phone on April 24, 2021 shows an icy lake at the foot of Mount Qungmknag in Nyemo County of Lhasa, southwest China`s Tibet Autonomous Region. (Xinhua/Shen Hongbing)

Photo taken with a mobile phone on April 24, 2021 shows the glacial landform at the foot of Mount Qungmknag in Nyemo County of Lhasa, southwest China`s Tibet Autonomous Region. (Xinhua/Shen Hongbing)

Photo taken on April 24, 2021 shows an icy lake at the foot of Mount Qungmknag in Nyemo County of Lhasa, southwest China`s Tibet Autonomous Region. (Xinhua/Zhang Zhaoji)