Bon voyage Icon of the Seas, the world's largest cruise ship. 

With room for 7,600 passengers it's one gigantic floating party boat. The amenities are first-class with seven swimming pools, six water slides, and more than 40 restaurants, bars and lounges. 

However the ship is powered by liquefied natural gas (LNG) and some environmentalists are concerned it will leak harmful methane into the air. 

According to the United Nations Environment Programme (UNEP), "Methane is also a powerful greenhouse gas. Over a 20-year period, it is 80 times more potent at [global] warming than carbon dioxide. Methane has accounted for roughly 30 per cent of global warming since pre-industrial times and is proliferating faster than at any other time since record keeping began in the 1980s.”

At some point the YOLO crowd and the Save The Earth crowd have to get together and find common ground. Otherwise we're taking one step forward and two steps back.