Cruise liners are a surprisingly large source of greenhouse gases and pollution, but Norwegian cruise operator Hurtigruten says it's on its way to carbon neutrality – and all thanks to dead fish.
By 2025, all buses in Amsterdam will be electric. In addition, the city's fleet of 150 sightseeing boats are all going to be going electric too.
A research team, led by Sandia National Laboratories, has discovered a way to power research ships with zero-emission hydrogen. The hydrogen-powered engine could effectively replace commonly used diesel.
