However, as a result of unenlightened management means and methods, the water use efficiencies are universally low, and the waste of water is serious in irrigation areas.

然而，由于管理手段和方法的落后，我国灌区普遍存在水资源利用率低下，水资源浪费严重的现象。

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China is a country with severe water shortage. The main problems of the water resources management are water pollution, low efficiency of water using, water waste and behind the management level.

中国是水资源严重短缺的国家，水环境污染、用水效率低、用水浪费和管理水平落后是我国水资源管理中存在的主要问题。

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While the source of water currently received by the Hubli-Dharwad Municipal Corporation is filtered, sewage leakage and the poor management of waste often contaminates drinking water on its way into the homes.

CNN: Students work to improve water quality in India

Among those that do, the definition varies: 55% define sustainability as the management of issues related to the environment (for example, greenhouse gas emissions, energy efficiency, waste management, green-product development, and water conservation).

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