英语翻译这是一篇关于废水影响城市供水抗旱的文章ThedeclineinColoradoRiverflowandLakeMeadvolumebetween2003and2007maybepartofalargertrendindecreasingriverflow,whichhasbeenlinkedtoclimatechange.Duringt

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英语翻译
这是一篇关于废水影响城市供水抗旱的文章
The decline in Colorado River flow and Lake Mead volume between 2003 and 2007 may be part of a larger trend in decreasing river flow,which has been linked to climate change.During the 20th century,the average flow of the Colorado River dropped by a factor of two,from approximately 1.9×10 13L (15 million acre-ft) in 1900,to approximately 8.6×10 12L (7 million acre-ft) in 2000 (USGS 2004).Barnett et al.(2008) concluded that 60% of the observable climate-related trends (included snow-pack on the western Rocky Mountains which serves as the source of the Colorado River) between 1950 and 1999 were attributed to human-induced climate change.Moreover,researchers predict that this trend will continue in the coming decades further straining water resources in the American Southwest (Barnett et al.,2004; Barnett and Pierce 2008; McCabe and Wolock 2007).The link between insufficient water supplies and slowing patterns of surface water flow partially attributed to climate change has been observed in the U.S.Great Plains (Brikowski,2008).This manuscript furthers this relationship by illustrating how water quality can also be adversely affected by this phenomenon.
Conclusions
As the volume of Lake Mead decline,partly as a result of drought,wastewater will have more of an impact on the source drinking water for Las Vegas and cities down-river likely resulting in higher concentrations of wastewater-derived contaminants.While treatment technologies exist to remove most classes of these contaminants,treatment would be most effective if it were implemented on the wastewater end,as if would mitigate some of the adverse effects that are observed in the environment (e.g.,endocrine disruption).However,implementation of additional treatment technologies will carry some energy cost.The irony here is that anthropogenically-driven climate change associated with use of fossil fuels may lead to drought,which may lead to increased concentrations of wastewater-derived contaminants in a water supply,which may necessitate the need for additional wastewater treatment requiring additional energy costs burning greater amounts of fossil fuels.
While the most significant threat to people relying on the Colorado River for water remains the availability of the resource itself,increasing concentrations of wastewater-derived contaminants and more impaired water quality may serve as an omen of what scientists and regulators might expect in areas predicted to have decreased precipitation and surface water flow as a result of global climate change.Moreover,the increasing trend in source water concentrations highlight the need for a better understanding of what risk,if any,pharmaceuticals and EDCs pose to drinking water and aquatic ecosystems.

Answer 1

而对靠科罗拉多河水生存的人们的最大威胁莫过于河水的保有量,生活污水有毒物质含量的不断增加和遭到破坏的水质可能只是科学家们预测的由于全球气候变化造成的该地区降水量的不断减少和地表水流速的降低的兆头,另外,水资源问题日益突出需要人们提高风险意识,如果这样,制药业和电子行业就要认真对待饮用水和水生态系统问题,