Sunday 15 August 2010

From “Oh” to “Doh!”

A big thank you to Erik for putting me straight on the maths!  As he quite rightly pointed out, I’d under-valued the flying as I needed to calculate four flights for four people, but the ferry, as per the cited website, is per car.  So there we have it – my 2010 holiday had a lower footprint than last year’s flights.  Hurrah!
2009
Miles
CO2e (tonnes)
Flights1.32
Rail1670.08
Car (Eire)6200.16
Total1.56
2010
Miles
CO2e (tonnes)
Ferry0.904
Car (UK)6600.17
Car (Eire)6200.16
Total1.234

Although I feel much happier now, it does once again highlight the difficulties of making those tricky decisions with the best information available.  Luckily I had someone like Erik to help me out - other people may not be so fortunate.

(All sources as per yesterday’s post!)
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2 comments:

  1. Erik Buitenhuis16 August 2010 at 17:35

    Hi Jon,

    Sorry to have missed that "the ferry, as per the cited website, is per car", because then I shouldn't have multiplied that by four as well, so your 2010 number of yesterday was right: 0.556 tonnes, which then is 36% of flying.

    Best wishes,
    Erik.

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  2. Jon Curran18 August 2010 at 20:12

    Thanks Erik - I've amended that bit on the post! Thanks again for your help.

    J

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