The world's largest cruise ship set sail last week from the port of Miami, heading for the Caribbean. Impressive with around twenty bridges, which earned it the nickname “human lasagna” But also the largest floating water park, with its multiple swimming pools, its artificial wave for surfing and even an indoor waterfall.

Heckled by environmental activists, the owner of the boat, Royal Caribbean, defends its “beautiful baby” powered by “green fuel” In fact LNG, a very controversial fuel.