Several studies suggest farmers will be up against environmental limits by 2050, as industry and consumers compete for water.

几项研究证明，因为工业和消费者争夺水源，到2050年，农民将面临环境的限制。

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A new map of 151 countries has revealed exactly which parts of the globe deliver long and happy lives for their citizens, within the environmental limits of the planet.

在全球环境的限制下，世界上151个国家哪里为市民提供的生活最为幸福长乐呢——就由这张地图来告诉你。

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He shows that if we have strict environmental resource limits then we cannot have infinite expansion of the physical side of the economy.

FORBES: Biofuels: Policy Based Evidence Making

George Bush, the incumbent, wants Congress to let oil firms drill in areas of Alaska and coastal waters that are currently off-limits for environmental reasons.

ECONOMIST: Oil prices

It published on Monday, for the first time, environmental quality standards setting acceptable limits for contaminants in soil.

NPR: Peru Declares Amazon Oil Contamination Emergency