The eco guide to cruises | Lucy Siegle

Before you embark on a cruise, there are serious ethical questions to ask"

Ahoy, my ageing hearties. Increasing numbers of mega liners are being built. These monster ships can carry, entertain and feed 5,000 passengers at a time. Meanwhile research from Tourism Concern shows that the older vessels are responsible for 36 times as many greenhouse gas emissions per passenger kilometre than Eurostar and three and a half times more than a long-haul flight. And this is just the start of a long ethical rap sheet.

So here are the questions to ask before setting sail that nobody does"