Freight shipping has a huge carbon footprint. It is true that the carbon footprint is far lower than freight carried by air, however this does not help.
However, it is also true that these ships do not travel particularly fast. With the new kite sails designs where a kite with roughly 100 square meters area, and the ability to be flown above 100m – an area where the wind speeds and directions are far more reliable.
Continue reading “Re-emergence of sails?”