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  • long-distance bus routes only). An interesting gimmick is the carbon dioxide emission comparisons for different train journeys. All major cities
    30 KB (4,375 words) - 18:36, 14 January 2016
  • 4.5 tonnes of carbon dioxide, or about half the average yearly emissions of a person in the U.K. Shorter flights have higher emissions than longer ones
    8 KB (1,018 words) - 16:19, 7 August 2015
  • or transport in general, is one of the biggest sources of global carbon emissions (26% of global CO2 in 2004), the cause of climate change. By choosing
    16 KB (2,388 words) - 02:53, 20 December 2015
  • were introduced. Today, the air quality is in much better. Ozone and carbon dioxide levels are falling. Although the smog layer is visible nearly every
    144 KB (19,971 words) - 08:09, 27 January 2016
  • tonnes of carbon dioxide per person, or about half the average yearly emissions of a person in the UK. Shorter flights have higher emissions than longer
    101 KB (16,269 words) - 11:54, 10 February 2016