Tibet vows to put ecology over growth

"Each climber is required to pick up 8 kilograms of litter and carry it out. Also, Tibetan climbers made a great effort and took down a metal ladder left by others at an altitude of about 8,000 meters," Wu said.

He added that reports saying Tibet had closed the reserve are inaccurate. The government only moved a tourism center previously in the core areas to the outside and tourists can still see Qomolangma from the new center, which is only 2 kilometers from the previous one.