Globally, the negative impacts of future climate change on freshwater systems are expected to outweigh the benefits.

对全球而言，气候变化对淡水系统负面影响将超过收益；

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Research in the centre includes work in terrestrial, freshwater and marine systems.

研究中心包括陆地，淡水和海洋的系统工作。

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MICHAEL A. MALLIN is an aquatic ecologist who has extensively studied pollution in freshwater, estuarine and coastal marine systems.

马林是一位水域生态学家，广泛研究淡水、河口及沿海海域的生态系统。

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For example, freshwater systems polluted with excess agricultural fertiliser will suffocate with algae, killing off fish and making water unfit for human consumption.

BBC: Nature loss 'to damage economies'