Mode, Load, And Specific Climate Impact from Passenger Trips

作者：Borken Kleefeld Jens; Fuglestvedt Jan; Berntsen Terje^*

来源：Environmental Science & Technology, 2013, 47(14): 7608-7614.

DOI：10.1021/es4003718

The climate impact from a long-distance trip can easily vary by a factor of 10 per passenger depending on mode choice, vehicle efficiency, and occupancy. In this paper we compare the specific climate impact of long-distance car travel with coach, train, or air trips. We account for both, CO2 emissions and short-lived climate forcers. This particularly affects the ranking of aircrafts climate impact relative to other modes. We calculate the specific impact for the Global Warming Potential and the Global Temperature Change Potential, considering time horizons between 20 and 100 years, and compare with results accounting only for CO2 emissions. The cars fuel efficiency and occupancy are central whether the impact from a trip is as high as from air travel or as low as from train travel. These results can be used for carbon-offsetting schemes, mode choice and transportation planning for climate mitigation.

• 出版日期2013-7-16
• 单位国际应用系统分析学会(IIASA)