Perspective: Should you take a green cruise?
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No certification is required or has risen to the level of a universally accepted guarantee of good environmental citizenship., says travel advisers do their best to differentiate between truly green businesses and those that are all talk. When he vets a cruise partner, he always looks for conscious environmental choices, such as reducing energy consumption and waste or securing a Blue Flag marina certification.
There are no recent studies that suggest customers are demanding more environmentally conscious cruises. After conversations with several cruise passengers, I concluded that having a fleet of sustainable and less wasteful ships is a selling point, but not a primary consideration.