A very long time ago I sent a request to Coras Iompar Eireann, the operator of Dublin Bus, Iarnrod Eireann and Bus Eireann seeking information on how much fuel they consumed, its cost, and the estimated carbon footprint. They have replied, finally, to my request.
In the five years from 2005 to 2009, CIE consumed 546,257,128 litres of diesel. This equates to approximately 1.747 billion kilos of carbon (at 3.2kg per litre), or 1,747 metric kilotonnes. The numbers are broken down as follows:
Dublin Bus consumed 168,940,369 litres from 2005 to 2009 (31% of total)
Iarnrod Eireann consumed 234,874,458 litres from 2005 to 2009 (43% of total)
Bus Eireann consumed 142,442,301 litres from 2005 to 2009 (26% of total)
The carbon dioxide emissions amount to over five times the mass of the Empire State Building.
CIE refused to give costs information on the basis of commercial sensitivity. The process of getting this information was an interesting one in itself and I will write more on this and give a further analysis of the data soon.
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