There was no highway in Tibet before its peaceful liberation. Now, a transportation network consisting of 24,000 km of highways, a dozen air routes and more than 1,000 km of pipelines has been completed.
Meteorological experts in southwest China's Tibet Autonomous Region have expressed concern that global warming is threatening the ecology of the region.
According to Xinhua News Agency, since Tibet Autonomous Region was founded, it has successfully combined economic development with environmental protection, and its natural environment quality remains one of the best in the world.
A Qinghai-Tibet Plateau expert said on Tuesday that the Qinghai-Tibet Railway will not be affected by global warming in at least 40 years.