Comparison of life-cycle energy and emissions footprints of passenger transportation in metropolitan regions

Earth & Environmental Sciences

• footprint 100%
• life cycle 83%
• vehicle component 60%
• energy 49%
• automobile 46%
• comparison 42%
• infrastructure 37%
• travel 30%
• volatile organic compound 30%
• energy consumption 30%
• greenhouse gas 29%
• manufacturing 27%
• vehicle 26%
• transportation mode 25%
• electricity consumption 21%
• externality 20%
• fuel consumption 20%
• asphalt 19%
• electricity generation 19%
• city 19%
• energy use 18%
• health care 17%
• travel time 16%
• refining 16%
• diesel 16%
• greenhouse gas emissions 15%
• electricity 14%
• material 13%
• cement (construction material) 13%
• combustion 13%
• dust 12%
• public 11%
• services 10%
• cost 8%