Thanks for raising an important topic - we really did consider it and we are sure we will be asked it again and again as we journey. We didn't really want to get bogged down in this particular discussion on this forum - but to answer we have discussed it among our group and feel that the other aspects of narrowboating - slow pace, local, no-flying, enjoying the moment,often the canal is close to train stations so folk can join us without using a car, an attractive to the media event, opportunity to meet folk outsite of our usual lives.....out weighed the diesel consumption. We seriously considered a horse.....and as this is a one off event we were not in the position to look at PV cells, wind and solar as an alternative- should they exist.
Hope you can help us out in reducing our food miles by suggesting local grown and produced food within a brief walk of the canal. In june/july we are hoping to access at the very least fresh salad, early pots and carrots, possibly even some soft fruits - strawberries.....and would like to support local independant shops for milk and bread.
Look forward to your help.
Will be away now from computer until monday.