The Fietsberaad just published a story about how cycling plays a part in reducing CO2 emissions. What they report is as follows:
There look to be big differences between towns in the Netherlands as the CO2 emissions vary with the mobility of the resident. As a result, a resident from Almere (a new city which started being built in 1976 on reclaimed land) produces twice as much CO2 due to transport as a resident of Amsterdam. It is not just coincidence that bicycles are used for 27% of journeys in Almere vs. 38% of journeys in Amsterdam.
Cycle usage is an importing, but not the only, explanatory factor with regards to CO2 emissions per resident in relation to transport. Other important foctors are the spacial characteristics, the composition of the population and the travel habits of the population.
Bureau Goudappel Coffeng calculated the CO2 emissions per resident withy help from the travel statistics from the Mobiliteits Onderzoek Nederland (MON - Mobility Survey of the Netherlands) and the figures for CO2 emissions per passenger kilometre due to travel by car, bike, bus or train. That resulted in an oversight from the average CO2 emission per resident per city.
In greater than 100000 cities, Leiden (48% of journeys by bike), Amsterdam (38%), Haarlem (36%), Enschede (38%) and Rotterdam (26%) scored highly.
That cycle usage is not always the deciding factor is shown by Rotterdam. This city gains through a higher public transport usage and fewer journeys per person per day. And despite a high cycling mode share (48%), Zwolle did badly, as did Emmen, Amersfoort and Almere.
Amongst smaller towns, Vlaardingen, Delft, Schiedam, Gouda en Katwijk did well. In last place came Hardenberg, due to its high number of car journeys.
The investigators concluded that considerable differences exist in the use of public transport and bikes between different towns, and that there is space for these towns to make improvements.
I previously posted a story about how the most important ways of reducing CO2 emissions were those which increased cycling.
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