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在全球范围内的温室气体排放量中,13%由交通运输业产生。研究显示,如果照这个速度发展下去,到2030年,这个数字将上升到57%。特别值得一提的是,这一预期增长的80%将发生在发展中国家。在因运输产生的二氧化碳中,公路交通运输的排放量占到了74%。所以,高效的运输系统是必要的,并且对经济的增长和社会的发展具有重要的影响。但运输领域的环境情况事实上并不令人满意,
Of the global greenhouse gas emissions, 13% are generated by the transport sector. Studies show that by this rate, by 2030, the figure will rise to 57%. In particular, it is worth noting that 80% of this expected increase will take place in developing countries. Of the carbon dioxide generated by transport, highway traffic accounted for 74% of emissions. Therefore, an efficient transport system is necessary and has a significant impact on economic growth and social development. However, the environmental situation in the transport field is in fact not satisfactory.