英語翻譯
接上：enough for one person for one day ,or about a litre for each calorie .Demand for water will grow as the world's population increases and as people eat more and more meat in particulr.Raising livestock requires more water,per calorie ,than growing crops.So the assessment suggests that,by 2050,agriculture will consume twice as much water as it does today.Industrial and domestic use,which now accouunt for only a small fraction of water consumption,are also growing quickly .Global warming adds another layer of uncertainty and rsk.知道的同事們,