除非农村经济能够生产足够的额外粮食来养活更多的人，否则人口不可能增长。
Populations cannot grow unless the rural economy can produce enough additional food to feed more people.
但它们的间接影响：与粮食作物的竞争，额外开垦荒地种植的需要，还有在提炼过程中的消耗能源——所有都会造成影响。
But their indirect environmental "bads" -competition with food crops, the need to clear virgin land to grow them, and the energy costs of processing them-all cause anguish.
在其他的变化方面，用来计算批发价格指数的篮子中的粮食产品的额外补贴去年从26.9%减少到24.3%。
Among other changes, the weighting of food products in the basket used to calculate the WPI was reduced last year to 24.3% from 26.9%.
所有这些额外的粮食对环境也有害处。
没有这个突破，种更多的粮食便不可避免地意味着失去更多的水，因为每一棵额外的作物在光合作用过程中都会将水蒸气带入空气当中。
Without such a breakthrough, growing more crops inevitably means losing more water, since each extra plant transpires water vapour into the atmosphere during photosynthesis.
在730万人中，540万人突然需要额外的粮食援助。
Of the 7.3 million, 5.4 million suddenly needed extra food aid.
世界银行代表星期四在华盛顿称，世界银行将额外提供1.2亿美元拨款及贷款，以帮助克服全球性的粮食危机。
The World Bank said in Washington Thursday that it will provide extra 1.2 billion dollars in grants and loans to help overcome the global food crisis.
世界银行代表星期四在华盛顿称，世界银行将额外提供1.2亿美元拨款及贷款，以帮助克服全球性的粮食危机。
The World Bank said in Washington Thursday that it will provide extra 1.2 billion dollars in grants and loans to help overcome the global food crisis.
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