In the future, from about 2050 onward, the world shipping fleet will likely be powered by ammonia and hydrogen, says the International Energy Agency.
The IEA report, Technology Energy Perspectives 2020, notes that, “shipping is the least energy-intensive way to carry goods: despite the size of its share of total freight transport activity, it is responsible for about one fifth of the energy used for freight transport and just 8% of total transport energy use”.
