It is hard to imagine modern life without the iron, steel, cement, chemicals and everyday plastics produced by heavy industries. According to World Steel Association estimates, the iron and steel sector accounts for between 7 and 9 per cent of man-made CO₂ emissions globally. A further 8 per cent comes from cement making, and the chemicals sector is the third-largest for direct carbon emissions, the International Energy Agency has found.
人们很难想象没有重工业生产的钢铁、水泥、化学品和日常塑料的现代生活。根据世界钢铁协会(World Steel Association)的估计，钢铁行业占manbetx app苹果 人为二氧化碳排放量的7%至9%。国际能源署发现，还有8%来自水泥生产，而化工行业是直接碳排放的第三大行业。
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