The world’s largest cruise ship has set sail from Miami, Florida, on its maiden voyage, but there are concerns about the vessel’s methane emissions.

The 365m-long (1,197 ft) Icon of the Seas has 20 decks and can house a maximum of 7,600 passengers. It is owned by Royal Caribbean Group.

The vessel is going on a seven-day island-hopping voyage in the Caribbean.

Environmentalists have warned the liquefied natural gas-powered ship will leak harmful methane into the air.

Subscribe here: http://bit.ly/1rbfUog

For more news, analysis and features visit: www.bbc.com/news

#IconOfTheSeas #BBCNews