Iron ore and steel production trends and material flows in the world: Is this really sustainable?

摘要: Abstract Material flow analysis is an of the a material into and out particular region. The also includes estimation energy expended environmental emissions at each stage life cycle, i.e . from extraction, processing, consumption recycling to disposal. This informs resource policy, planning, waste management. paper reports on historical world iron ore steel industry in which crude products are quantified for period 1950 2005. On basis this analysis, future production estimated. shows that increased 274 million tons (Mt) 1554 Mt 2005, whereas 207 1259 Mt. In addition, it found current level world's identified reserves containing 230 billion would last nearly 50 years. Global CO 2 different manufacturing routes estimated be 3169 Mt approximately 1781 Mt by 2020, specific 14.43 GJ/tcs. trends major producing countries indicates that, incidentally, not vice-versa. For example, Brazil's was 322 Mt its 10% production. same period, Japan's 124 Mt though; had no domestic flows clearly indicate weak end time, cost associated with sea borne transport materials. Further, substance model year 2006 indicating net ore, finished across continents demonstrates these materials environmentally sustainable, sector could do lot contribute sustainable development.