With China's biggest freshwater lake reduced to just 25 per cent of its usual size by a severe drought, work crews are digging trenches to keep water flowing to one of the country's key rice-growing regions. The dramatic decline of Poyang Lake in the landlocked southeastern province of Jiangxi had otherwise cut off irrigation channels to nearby farmlands. The crews, using excavators to dig trenches, only work after dark because of the extreme daytime heat, the official Xinhua News Agency reported.
Our demand for sand is leading to a sustainability crisis: experts
Riverbed sand is preferred for construction materials, but this is where the greatest environmental and local human consequences of mining activities happen, according to the review study. Aggregate extraction of sand from rivers leads to pollution, flooding, lowering of water levels, undrinkable water, worsening drought occurrence, and threats to natural habitats.