Yup. If your boat is powered by fossil fuels, airplane still beats it because you need to haul around a miniature apartment instead of just a lightweight seat for each person. Folks under-estimate how efficient airplanes are and how inefficient humans are when you need to keep them sane for several weeks at sea. (At efficient speed, around 45 mpg per passenger for an ocean liner and 100mpg for a modern airliner.)
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Now factor in environmental costs, and add benefits of the journey?
Yup. If your boat is powered by fossil fuels, airplane still beats it because you need to haul around a miniature apartment instead of just a lightweight seat for each person. Folks under-estimate how efficient airplanes are and how inefficient humans are when you need to keep them sane for several weeks at sea. (At efficient speed, around 45 mpg per passenger for an ocean liner and 100mpg for a modern airliner.)
Sailing ships may be another matter.
Airplanes are actually fairly efficient, the “problem” is that it makes long distance travel convenient and affordable.
If airplanes were completely zero emissions, it wouldn’t be a problem. Here’s hoping...