Trains are about 15 gCO2/(km*pax), cars are around 100, planes are around 280, and ships are around 250. [1] So ships (with their much greater friction) defini

Trains are about 15 gCO2/(km*pax), cars are around 100, planes are around 280, and ships are around 250. [1] So ships (with their much greater friction) definitely aren't the answer! [1] https://www.eea.europa.eu/media/infographics/co2-emissions-from-passenger-transport/view https://www.eea.europa.eu/media/infographics/co2-emissions-f...