Consumers can reduce the amount of water through direct action - by applying a water-saving showerhead, shutting off the tap during teeth brushing, by not disposing of medicines, paints or other pollutants down the sink etc.

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You can watch the surrounding city from indoors and see a landscaped, energy-saving, water-collecting, "living" roof from one level above.

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This negative impact was modestly softened by our rollout of several water-saving initiatives, which we estimate will contribute a reduction of 1.4 percent annually starting this year.

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Developers are building in a more eco-conscious manner, constructing homes in areas where well water is available and incorporating water-saving plants into the landscape.

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Boiling the pasta and cauliflower in the same pot is not merely a work-saving measure, Ms. Bloomfield said, it also adds flavor to the salted pasta water.

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