So, bloke travels by ship from Europe to Canada, then train across to Vancouver. To, obviously, save carbon emissions.
Carbon emissions (according to weight of passenger)
Flight Frankfurt-Vancouver: 1.3 tonnes*
Cargo ship Hamburg-Halifax (via Antwerp & Liverpool): 5.3kg**
Trains Halifax-Vancouver: 204.2kg***
Total CO2 Hamburg to Vancouver: 209.5kg
Well, yes. Except the not-air route took 20 days. And Canadians emit 20 tonnes CO2 per annum. 20,000/365×20 would appear to entirely eat up those notional emissions savings.
Perhaps I’m not being entirely fair but still…..
It’s also vastly more expensive. Thus valuing a tonne of CO2 at something like $1,000 or more, which is grossly over the top.