一、钢铁业发展节能减排是国民经济可持续发展的客观要求(一)国内资源的短缺我国是资源匮乏的国家。人均水资源拥有量为2250立方米/人年,不到世界平均水平的1/4。水资源的时空分布不均匀。600多个城市中,有300余座城市缺水,其中严重缺水城市有100余个,每年因缺水造成的经济损失约2000亿元。 First, the development of the steel industry Energy-saving emission reduction is the objective requirement of the sustainable development of the national economy (A) the shortage of domestic resources China is a resource-scarcer country. The per capita water resource ownership is 2,250 cubic meters per person year, less than 1/4 of the world average. The spatial and temporal distribution of water resources is uneven. More than 600 cities, there are more than 300 cities in the water shortage, of which there are more than 100 cities in severe water shortages, annual economic losses due to lack of water about 200 billion yuan.