在接下来的四分之一个世纪里，美国的供水设施 美国将面临一系列事态发展 将对他们的资源施加压力，促使他们 开发替代品，并需要新的 他们如何开展业务的方法。这篇文章， 系列文章的第二部分重点介绍了其中两种趋势——人口增长和气候变化。 美国人口预计将达到4.19亿 到2050年，增长了50%。需水量 压力会急剧上升，资源有限，需要 开发替代资源。此外，很多 其中大部分人口增长将发生在各个地区 已经在应对供水限制。此外 人口正在老龄化，在各个领域变得更加多样化 它的种族构成，以及获得更高的教育水平——所有这些因素都将影响公用事业公司的沟通方式 和他们的顾客在一起。 未来25年还将带来气候变化 这将进一步测试实用程序。多雨的年份很可能会下雨 变得更加湿润，干旱年份更加严重。 水流模式和水位的变化可能会导致 浊度峰值和污染物浓度增加 这威胁到了监管合规性。 全面水资源管理提供了一种 可以为公用事业公司配备处理两种预期发展的设备 以及不可预测的事件。而不是铲球 在地方层面，全面水资源管理鼓励 更广阔的世界观以及合作 以及社区、监管机构之间的沟通， 和机构。保护，新技术， 以及综合资源规划——所有这些都是 全面水资源管理——也将协助水资源管理 供应商应对不断增长的需求和气候变化的挑战。包括14个参考文献、图表。

Over the next quarter century, water utilities in the United States will face a number of developments that will put pressure on their resources, spur them to develop alternative supplies, and necessitate new approaches to how they conduct business. This article, the second in a series, highlights two of these trends - population growth and climate change. The US population is predicted to reach 419 million by the year 2050, an increase of 50%. Water demands will skyrocket, stressing limited resources and requiring development of alternative sources. Furthermore, much of this population growth will take place in regions already coping with water supply constraints. In addition, the population is aging, becoming more diverse in its ethnic makeup, and attaining higher levels of education - all factors that will affect how utilities communicate with their customers. The next 25 years will also bring climate change that will further test utilities. Wet years are likely to become wetter, and drought years more severe. Changes in flow patterns and stream levels could cause turbidity spikes and increases in contaminant concentrations that threaten regulatory compliance. Total water management offers an approach that can equip utilities to handle both expected developments and unpredictable events. Rather than tackle issues on a local level, total water management encourages a more expansive worldview as well as cooperation and communication among communities, regulators, and institutions. Conservation, new technologies, and integrated resources planning - all hallmarks of total water management - will also assist water providers in meeting the challenges of growing demand and climate shifts. Includes 14 references, figures.