The world’s largest cruise ship, Royal Caribbean's Icon of the Seas, recently had its inaugural ceremony. Packed with exciting attractions like a giant water park and cutting-edge sustainability efforts, the ship has everyone talking. 

With room for almost 8,000 passengers, 20-deck, 1,198-foot-long vessel, this ship is the size of a small city and claims to be a sustainability trailblazer. It runs on liquefied natural gas (LNG), considered a cleaner option, but critics are skeptical due to concerns about methane emissions.

Expanding on its 30-year 'Save the Waves' initiative, Royal Caribbean introduces a groundbreaking waste management system aboard, converting waste into energy. Also, the ship features an advanced purification system designed to treat all onboard wastewater. 

Despite efforts to use shore power in ports and use of alternative energy sources, some argue that building such huge ships goes against the cruise industry's promise to be eco-friendly.