If these 1,200 tonnes of emissions are spread out over an estimated lifetime of 50 years, then theEcoClipper500would have a carbon footprint of about 2 grammes of CO2 per tonne-kilometre of cargo, concludes researcher Andrew Simons, who made the life cycle analysis for the ship. This is ...
Low flow rates are still often plenty to whip your feet out unexpectedly from under you (people keep forgetting that a cubic metre of water weighs a tonne, and even a mere cubic foot of water weighs more than 28 kilograms {62 pounds}...), and they also make rapids much rockier, and...