人造蜿蜒的鲍威尔湖(Man-made, meandering Lake Powell)

鲍威尔湖是科罗拉多河上的一座人工水库，横跨犹他州和内华达州的边界。它形成于20世纪60年代，当时美国建造了格伦峡谷大坝。尽管大坝通过水力发电发电发电，但由于湖面更宽区域的蒸发，也会造成水的损失。当2000年左右干旱开始时，该湖的水位开始暴跌，2005年的水量比1999年减少了近一半。我们这一代人高度依赖淡水。随着全球人口的增加，至关重要的是，我们都要尽自己的一份力量来保护淡水并保持其清洁。
原文：
Lake Powell is a man-made reservoir on the Colorado River, stretching across the Utah and Nevada border. It was formed in the 1960s after the US built the Glen Canyon Dam. Though the dam creates power through hydroelectricity, it also causes water loss due to evaporation from the broader surface area of the lake. When the drought took hold around 2000, the lake’s water levels began to plummet, and in 2005 it lost nearly half of its volume compared to 1999. Our generation has a high dependance on freshwater. As our global population increases, it’s crucial that we all do our part to conserve our freshwater and keep it clean.
《© Peter Schaefer/Alamy》