Source: China – South China Morning PostChinese workers building what would be the world’s longest tunnel have come up against an unexpected problem in one of the driest areas on Earth – gushing streams of water.That is according to engineers involved in the project in China’s far western Xinjiang region, more than half of which is made up of vast expanses of arid desert.“High groundwater levels have caused frequent water inrush accidents that seriously affected the construction schedule,” said Deng Mingjiang, a professor with the…Read More