Most Polluting Cruise Ships (2026)

Cruise ships with the lowest environmental Green Scores. These vessels rank near the bottom for emissions intensity, advocacy grades, or compliance records.

All Ships Greenest Ships Most Polluting Best Emissions Best FOE Grades
# Ship Cruise Line Green Score ▲ Emissions (40%) FOE (35%) Compliance (25%)
1 Carnival Sunrise Carnival 53 N/A N/A N/A
2 Carnival Sunshine Carnival 53 N/A N/A N/A
3 Carnival Valor Carnival 53 N/A N/A N/A
4 Carnival Liberty Carnival 60 N/A N/A N/A
5 Carnival Glory Carnival 60 N/A N/A N/A
6 Carnival Conquest Carnival 60 N/A N/A N/A
7 Carnival Breeze Carnival 60 N/A N/A N/A
8 Carnival Pride Carnival 60 N/A N/A N/A
9 Carnival Elation Carnival 60 N/A N/A N/A
10 Carnival Paradise Carnival 60 N/A N/A N/A
11 Carnival Venezia Carnival 61 N/A N/A N/A
12 Carnival Horizon Carnival 61 N/A N/A N/A
13 Carnival Vista Oceania 61 N/A N/A N/A
14 Carnival Freedom Carnival 61 N/A N/A N/A
15 Carnival Magic Carnival 61 N/A N/A N/A
16 Carnival Radiance Carnival 63 N/A N/A N/A
17 Carnival Luminosa Carnival 63 N/A N/A N/A
18 Carnival Legend Carnival 63 N/A N/A N/A
19 Symphony of the Seas Royal Caribbean 64 N/A N/A N/A
20 Harmony of the Seas Royal Caribbean 64 N/A N/A N/A
21 Allure of the Seas Royal Caribbean 64 N/A N/A N/A
22 Oasis of the Seas Royal Caribbean 64 N/A N/A N/A
23 Spectrum of the Seas Royal Caribbean 64 N/A N/A N/A
24 Anthem of the Seas Royal Caribbean 64 N/A N/A N/A
25 Ovation of the Seas Royal Caribbean 64 N/A N/A N/A
26 Liberty of the Seas Royal Caribbean 64 N/A N/A N/A
27 Independence of the Seas Royal Caribbean 64 N/A N/A N/A
28 Navigator of the Seas Royal Caribbean 64 N/A N/A N/A
29 Explorer of the Seas Royal Caribbean 64 N/A N/A N/A
30 Adventure of the Seas Royal Caribbean 64 N/A N/A N/A
31 Celebrity Edge Celebrity 64 N/A N/A N/A
32 Norwegian Breakaway Norwegian 68 N/A N/A N/A
33 Norwegian Getaway Norwegian 68 N/A N/A N/A
34 Norwegian Gem Norwegian 68 N/A N/A N/A
35 Carnival Dream Carnival 68 N/A N/A N/A
36 Carnival Celebration Carnival 71 N/A N/A N/A
37 Carnival Jubilee Carnival 71 N/A N/A N/A
38 Carnival Panorama Carnival 71 N/A N/A N/A
39 Carnival Spirit Carnival 71 N/A N/A N/A
40 Carnival Miracle Carnival 71 N/A N/A N/A
41 Odyssey of the Seas Royal Caribbean 71 N/A N/A N/A
42 Mariner of the Seas Royal Caribbean 71 N/A N/A N/A
43 Disney Wish Disney 73 N/A N/A N/A
44 Utopia of the Seas Royal Caribbean 73 N/A N/A N/A
45 Wonder of the Seas Royal Caribbean 74 N/A N/A N/A
46 Quantum of the Seas Royal Caribbean 74 N/A N/A N/A
47 Freedom of the Seas Royal Caribbean 74 N/A N/A N/A
48 Celebrity Beyond Celebrity 74 N/A N/A N/A
49 Icon of the Seas Royal Caribbean 74 N/A N/A N/A
50 Serenade of the Seas Royal Caribbean 75 N/A N/A N/A
51 Norwegian Viva Norwegian 77 N/A N/A N/A
52 Norwegian Prima Norwegian 77 N/A N/A N/A
53 Norwegian Encore Norwegian 77 N/A N/A N/A
54 Norwegian Bliss Norwegian 77 N/A N/A N/A
55 Norwegian Joy Norwegian 77 N/A N/A N/A
56 Norwegian Escape Norwegian 77 N/A N/A N/A
57 Norwegian Epic Norwegian 77 N/A N/A N/A
58 MSC Meraviglia MSC 77 N/A N/A N/A
59 Disney Fantasy Disney 88 N/A N/A N/A
60 Disney Dream Disney 90 N/A N/A N/A

Showing 60 ships

Green Scores are calculated from EU THETIS-MRV emissions data (40%), Friends of the Earth grades (35%), and federal compliance records (25%).

View Individual Ship Environmental Profiles →