Estimate carbon footprint of the expedition ["needs-triage"] #266
Description
Describe the solution you'd like
We already have the estimated cost, I think it would be nice to have a general estimate of the carbon footprint.
Describe alternatives you've considered
No alternative. User could do it separately, but would be nice to have that along with the cost.
Additional context
Would be interesting for students to understand that it is not only the cost but the carbon footprint could also be taken into consideration while planning a cruise.