There are many different ways to measure agricultural performance besides food yield: energy use, environmental costs, water purity, carbon footprint and biodiversity.

除了粮食产量之外，还有许多不同的方法来衡量农业表现：能源使用、环境成本、水的纯度、碳足迹和生物多样性。

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Work directly with production to understand their needs for purified water, document water purity requirements.

直接与生产一起工作，了解生产对纯净水的需求，记录并保持水纯度的需求。

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The dosage of alum and chlorine could be reduced 33% and 50% respectively. Water purity and taste could be improved.

同时，使矾耗降低33%加氯量节约50%水质纯净度和口感得到提高。

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Governments should encourage the capture of rainwater for use in washing and lavatory flushing, without the need for all water to achieve drinking water purity.

BBC: Harrabin's Notes: Population overload?

Stick one end in a body of water near your home and it will upload water purity information to the web via a built-in ZigBee module.

ENGADGET: AirBot and WaterBot help localize pollution data collection (video)

Hiring people with the scientific training to regulate the preflight temperature and water purity and to control waste during transit is the only solution, say experts such as John Neo, who heads aquarium-gear supplier Ehaim Asia.

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