Boasting the latest in engineering technology, the new railway linking Tibet to Central China is the highest railway in the world. The line runs through an environment that is so unfriendly that many of workers fell critically ill during construction. Inside the carriages, however, an array of electronic sensors secure the safety of the passengers and monitor the air circulation and the levels of oxygen. The trains are also designed to cope with lightning strikes, since the probability of electrical storms is high on the mountain slopes. However, this new Himalayan railway development is highly controversial. Although most people agree that it will bring greater prosperity to the region, many worry that Tibet's unique culture will be lost. Moreove, ecologists are concerned about the effects on the Himalayan wildlife such as the Tibetan antelope, which is among the most endangered species in the world. The animals are extremely timid and easily disturbed by any human activity.
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