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| == Calculation == | | == Calculation == |
| + | What do we want to calculate? Just the distances? Or also the CO<sub>2</sub>-impact? |
| + | |
| + | What distances do we take? By road? By boat? Or a mix? And if both are possible, when do we use one or the other? |
| + | |
| + | If we calculate the CO<sub>Subscript text</sub>2-impact we need to make additional assumptions. |
| + | |
| + | For the purpose of emphasising the (total) distance traveled by product and its ingredients, we should stay with the distances. We can use a 2000 km cutoff limit for transport by road, below we use road, above we use boat. |
| + | |
| + | === Formula === |
| + | |
| + | Distance<sub>total</sub> = Distance<sub>ingredients</sub> + Distance<sub>wholesale</sub> + Distance<sub>distribution</sub> |
| + | |
| + | The total distance formula consists of three parts: |
| + | * ingredients: the transportation of the ingredients to the production site; |
| + | * wholesale: the transportation of the finished product to the seller; |
| + | * distribution: the transportation from the reseller to the consumer; |