port involve high greenhouse gas emissions. Aircraft are usually the most polluting. Trains are always the preferable option climate-wise and also time-wise

Flying is one of the most dominant topics when it comes to the villains of climate change, but looking at the sober facts, its overall contribution to global CO2 emissions is not striking. According to the WRI, about 1.5 % of global GHG emissions are generated by fl ying. But aviation is a fast-growing contributor to climate change. What counts is not only the CO2 emissions but also ozone generation through nitrogen oxide emissions and the formation of condensation trails, so-called contrails, from water vapour release which also have warming effects. The IPCC estimates the overall impact of an aircraft on the climate is about two to four times higher than the impact of its CO2 emissions alone and concludes that aviation is responsible for around 3.5% of anthropogenic climate change, a figure which includes both CO2
and non-CO2 induced effects. It is important to remember this when comparing the climate performance of planes and ground transport modes.

Do you really save time?
Schedules
Train versus plane in a busy world Train Plane
Selected routes New York Tokyo Paris Hamburg
Washington D.C. Osaka London Münich
Flying distance 330 km 405 km 340 km 610 km
Departure from city centre 7hr00m 7hr00m 7hr00m 7hr00m 7hr00m 7hr00m 7hr00m 7hr00m
Arrival at airport 7hr20m 7hr35m 7hr45m 7hr40m
Check-in 7hr30m 7hr45m 7hr00m 8hr00m 8hr00m
Take-off / Departure 9hr00m 8hr45m 7hr30m 9hr00m 9hr15m
Landing 10hr25m 10hr05m 10hr10m 10hr30m
Baggage claim 10hr40m 10hr20m 10hr25m 10hr45m
Arrival in city centre 9hr35 11hr05m 9hr36m 10hr50m 9hr45m 11hr00m 12hr40m 11hr15m
Total travel time 2hr35 4hr05m 2hr35m 3hr50m 2hr45m 3hr00m 5hr40m 4hr15m
CO2 emissions (kg) 29 109 20 119 5,5 107 33 150
White circles are proportional to emissions.
Eurostar (Channel Tunnel Train) plans to cut
emissions by 25% per traveller journey by 2012
Sources: nyctourist.com, eurostar.com; amtrak.com; Even in this case where flying is faster, myclimate.org; bahn.de; www.amadeus.net; these are 5hr40m during which you can relax,
japanrail.com; www.keikyu.co.jp; aeroportsdeparis.fr. work or sleep without interruption.

http://maps.grida.no/go/graphic/do-you-really-save-time1
120 KICK THE HABIT THE CYCLE – REDUCE