Friends Of The Earth Grades Cruise Lines, Some Flunk

Friends of the Earth , a global network of activists from 76 different countries, has come out with its annual cruise ship score card that evaluates cruise lines based on three environmental factors – sewage treatment, air pollution reduction and water quality compliance.

Disney Cruise Line came away with top honors, an A minus, scoring high in all three areas.

Here's a look at how the cruise lines fared in each category:

Top three for sewage treatment:
Disney Cruise Line
Norwegian Cruise Lines
Celebrity Cruises

Bottom three for sewage treatment:
Carnival Cruise Lines
Silversea Cruises
Costa Cruises

Top three for air pollution reduction:
Princess Cruises
Disney Cruise Line
Holland America Line

Bottom three for air pollution reduction:
Silversea Cruises
Costa Cruises
Crystal Cruises

Top three for water quality compliance:
Silversea Cruises
Norwegian Cruise Line
Regent Seven Seas Cruises

Bottom two for water quality compliance:
Carnival Cruise Lines
Holland America Line

Click here for more complete details of the Cruise Ship Report Card.