TOP SEVEN ENVIRONMENTAL CHALLENGES IN TIBET: 2 of 3 | Rukor: "GLOBAL CLIMATE CHANGE
Problem: The land of snows, surrounded by mountains, is melting, drying and heating fast. Only the Arctic and Antarctic are warming quicker. Much of the plateau soil is in a region of permafrost, which holds frozen water in cold months, which then melts in warmer months. Not only does the seasonal thawing and freezing make is difficult to build railways and highways, as ice expands and contracts, but the early melt in spring, before plant roots can reach down to the icemelt, means plants wither, and wetlands dry up in April, May and June, lacking the water they need before the monsoon rains come. The death of Tibetan wetlands is now major, even desertification of many areas in Amdo. This is well documented in scientific research reports. There are many wetlands in Tibet, home to migratory waterbirds, now disappearing, and releasing to the atmosphere the carbon they had long stored. The new trend of early spring is also hard for farmers, whose crops find no water near the surface."
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