Cycle streets carbon saved

[mercalia]

Asus used to ( still do? ) provide power managment software with their motherboards that did the same thing, told you how much CO2 you had saved if u used certain power saving settings. silly really.

[meic]

Your maths implies that you have a requirement of 100g of butter to cycle 13 miles.
I dont believe that either or I could theoretically shift a Kg of "belly pork" by riding a 200K Audax.

All reputable data whether you believe it or not. Of course if you know better perhaps you would share your source. "I don't believe it" is not generally accepted as proof.

Oh bugger, for a second, when I typed that, I thought I was on a cycle forum rather than publishing a scientific paper.

[TonyR]

I now nothing about the subject, but if a person rode 200K without eating or drinking would they be 1Kg lighter?

The answer is no, just as if you ate 1kg of food, once its digested and the waste excreted, you will not weigh 1kg more. If you cycle the body draws on energy stored in things like glycogen. The digestion process that converts food like beef to glycogen for your muscles to burn is inefficient and beef is an inefficient energy storage vehicle (which is why we tend to eat energy bars, not burgers when cycling) - as you have probably noticed the body rejects and excretes a large amount of the mass of the food you eat as unusable waste and keeps only a small proportion as stored energy.