The Puget Sound study is one of several ongoing efforts to investigate the unexpected ingredients that find their way into the global water supply.

对皮吉特海峡的研究是一些正在进行的项目中的一个，这些项目是要研究各种调味料是如何进入全球水循环的。

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The chill also offers challenges. Ice swimming, for example, seems to be one with global appeal. A hole is cut in the ice to expose enough water for adrenaline junkies to dive into.

严寒也给予人们一些挑战。比如冬泳，这似乎是一项在全球范围内都极具魅力的运动。在冰面上凿开一个洞，为那些“冬泳迷”们开拓出足够的水域来畅游一番。

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GARY LAGERLOEF: "One of the big overarching questions in climate is, is the global water cycle changing?"

GARY LAGERLOEF：“关于气候的总体问题之一是：全球水循环是如何变化的？”

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Marubeni says it intends to become one of the top 10 players in the global water business, especially in emerging markets in Southeast Asia, Latin America, the Middle East and Africa.

WSJ: Japanese Firms Are Thirsty for Water Utilities

It also means that whereas population growth may not be a global problem, it could often be a very nasty local one, causing conflict over local resources, especially water, and privation when politics (frequently) or natural disaster (occasionally) cause local scarcity or epidemic disease even within a wider world of abundance and improving health.

ECONOMIST: A Survey of the 20th Century

Declared one of three wetlands of global importance by Unesco in 1971, the Everglades is also the source of drinking water for approximately five million people in south Florida.

BBC: Florida��s newest wildlife refuge