Silversea Cruises

Silversea Cruises - Final Grade: "D-"

Silversea Cruises was founded in 1994 and in 2020 became a fully-owned subsidiary of Royal Caribbean Group (RCG) which is incorporated in Liberia. Headquartered in Monaco, Silversea describes itself as a luxury cruise line that operates 12 cruise ships worldwide. The Silversea cruise ship fleet consists of smaller ships with carrying capacities between 400 and 1,280 passengers and crew and one Galapagos expedition ship that carries 190 passengers and crew.

Of Silversea’s 12 ships, 11 have installed advanced sewage treatment systems, resulting in a grade of C- for the company’s 55% Sewage Treatment score.

Only 3 of Silversea’s ships have shorepower capability, and 2 (Silver Nova and Silver Ray) dock at ports with shoreside power hookups giving the company an F for Air Pollution Reduction. However, those same 2 ships (Silver Nova and Silver Ray) burn liquified natural gas fuel which unfortunately emits significantly more life-cycle greenhouse gas emissions over the short-term than low sulfur fuel. Their use of LNG on two ships lowered their overall Air Pollution Reduction grade but it remains an F.

Only one of Silversea’s ships has an exhaust gas scrubber installed giving Silversea an F for Water Quality/Scrubber Use since scrubber use merely converts air pollution into toxic water pollution.

Silversea was one of the cruise lines that responded to our inquiries about its environmental practices with specifics, but it didn’t fully respond despite multiple inquires. We awarded them a D for Transparency.

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Silversea Cruises - Cruise Ship Fleet

Ship Name Cruise Line Total Persons on Board Destinations Sewage Treatment

Sewage Treatment

Has the cruise line installed the most advanced sewage and wastewater treatment systems available instead of dumping minimally treated sewage directly into the water? In determining a cruise line’s Sewage Treatment grade, we compared the number of cruise ships in the cruise line that have installed advanced sewage treatment systems against the total number of ships in the cruise line. Ships with AWTS were downgraded in 2020 since no companies publicly report on the performance of those advanced systems.

 Air Pollution Reduction

Air Pollution Reduction

Has the cruise line installed shorepower or adopted cleaner fuel worldwide? In determining the Air Pollution Reduction grade for each ship in a cruise line, ships that dock at a port and plug in to available shoreside power hookups were graded. In addition, ships were given credit if they utilize low sulfur fuels continuously worldwide at levels lower than required by international law. Use of scrubbers is not considered since the scrubbers in use by the cruise industry simply convert air pollution emissions into water pollution through their scrubber wastewater discharges.

 Water Quality Compliance

Water Quality Compliance

To what degree did cruise ships violate water pollution standards designed to better protect the Alaskan coast? In determining the Water Quality Compliance grade for cruise ships, we used notices of violation issued for individual cruise ships to each cruise line by the Alaska Department of Environmental Conservation from 2010 to 2019. In addition, we downgraded ships for their use of scrubbers since scrubbers convert air pollution emissions into water pollution.

 Final Ship Grade
Curved Grading Scale
A 100-85 Excellent
B 84-70 Satisfactory
C 69-50 Needs Work
D 49-25 Poor
F 24-0 Unacceptable
N/A Not Graded No Discharge in Alaskan Waters or Scrubber Use

**For the 2021 Cruise Ship Report Card, we graded 18 cruise lines and 202 cruise ships of those 18 lines operating around the world. All cruise ships from each cruise line were included in this report card. Friends of the Earth relied on data gathered from the internet, government sources, the cruise line industry, and other public sources in order to determine the grades assigned to the cruise lines. Friends of the Earth did not independently verify that the technology graded in the report card was installed on the individual cruise ships.
Silver Moon Silversea Cruises 1,007 Alaska, Canada, Caribbean, Central America, East Asia, Europe, Hawaii, Mediterranean, North Africa, South Pacific, Southeast Asia, U.S. West Coast, Florida, Transatlantic 05 00 01
Silver Spirit Silversea Cruises 1,060 Africa, Caribbean, Europe, Mediterranean, Middle East, Southeast Asia 05 00 01
Silver Wind Silversea Cruises 533 Africa, Alaska, Antarctica, Arctic, Canada, Central America, Europe, South America 05 00 01
Silver Dawn Silversea Cruises 1,007 Africa, Arctic, Canada, Caribbean, Central America, East Asia, Europe, Hawaii, Mediterranean, Middle East, South America, South Pacific, Southeast Asia, U.S. East Coast, U.S. West Coast, Florida, Transatlantic 05 00 01
Silver Ray Silversea Cruises 1,272 Caribbean, Central America, Europe, Mediterranean, North Africa, South America, Florida, Transatlantic 05 02 03
Silver Muse Silversea Cruises 1,007 Africa, Alaska, Australia, Canada, East Asia, Europe, Mediterranean, Middle East, South Pacific, Southeast Asia 05 00 01
Silver Whisper Silversea Cruises 694 East Asia, Europe, Mediterranean, South America, South Pacific, Southeast Asia 00 00 00
Silver Cloud Silversea Cruises 518 Antarctica, Australia, South America, South Pacific, Southeast Asia 05 00 01
Silver Nova Silversea Cruises 1,284 Alaska, Canada, East Asia, South Pacific, Southeast Asia 05 02 03
Silver Endeavor Silversea Cruises 400 Antarctica, Arctic, Canada, Europe, New England, South America, U.S. East Coast 05 04 00 02
Silver Shadow Silversea Cruises 694 Arctic, Canada, Caribbean, Central America, Europe, Hawaii, New England, South America, South Pacific, U.S. East Coast, U.S. West Coast, Florida 05 00 01
Silver Origin Silversea Cruises 190 South America, Galapagos Islands 05 00 01

 

Grading Methodology For The 2024 Cruise Ship Report Card

Friends of the Earth’s Cruise Ship Report Card ranks 21 major cruise lines and 243 cruise ships — AIDA Cruises, Carnival Cruise Lines, Celebrity Cruises, Costa Cruises, Cunard Cruise Line, Disney Cruise Line, Holland America Line, Hurtigruten, HX|Hurtigruten Expeditions, MSC Cruises, Norwegian Cruise Lines, Oceania Cruises, P&O Cruises, P&O Australia, Princess Cruises, Regent Seven Seas Cruises, Royal Caribbean Int’l, Seabourn Cruise Line, Silversea Cruises, Viking Cruises, and Virgin Voyages—according to four environmental criteria: Sewage Treatment, Air Pollution Reduction, Water Quality/Scrubber Use and Transparency.

Sewage Treatment
To determine a cruise line’s Sewage Treatment grade, we compared the number of cruise ships in the cruise line that have installed advanced sewage treatment systems (AWTS) against the total number of ships in the cruise line. Ships with AWTS have been downgraded from As to Cs since 2020 because no companies publicly report on the performance of those advanced systems.

Air Pollution Reduction
To determine the Air Pollution Reduction grade for each ship in a cruise line, ships that dock at a port and plug in to available shoreside power hookups were graded. In addition, ships were given credit if they utilize low sulfur fuels continuously worldwide at levels lower than required by international law. Ships were downgraded if they have adopted the use of liquified natural gas which emits significantly more life-cycle greenhouse gas emissions over the short-term than low sulfur fuel. Use of scrubbers is not considered since the significant majority of scrubbers in use by the cruise industry simply convert air pollution emissions into water pollution through their scrubber wastewater discharges.

Water Quality Compliance
To determine the Water Quality/Scrubber Use grade we only grade cruise ships in the cruise line that have installed exhaust gas scrubbers. Many cruise ships have installed exhaust gas scrubbers to reduce smoke-stack emissions and comply with cleaner fuel rules in the US and worldwide. However, while scrubbers reduce some air pollution, most discharge contaminated, toxic wastewater–trading one dirty pollution source for another. We fail ships for their use of scrubbers since scrubbers convert air pollution emissions into wastewater pollution.

Transparency
To determine the Transparency grade for each cruise line we graded each cruise line based on whether it responded to our 2024 requests for information regarding their environmental practices. Companies that responded with full specifics were given As, those that didn’t received failing grades.

The grades for each of the four criteria were averaged to calculate the Final Grade for each cruise line.

Grades In Comparison: Report Cards From Previous Years

2024 Cruise Ship Report Card
2022 Cruise Ship Report Card
2021 Cruise Ship Report Card
2020 Cruise Ship Report Card
2019 Cruise Ship Report Card
2016 Cruise Ship Report Card
2014 Cruise Ship Report Card
2013 Cruise Ship Report Card
2012 Cruise Ship Report Card
2010 Cruise Ship Report Card
2009 Cruise Ship Report Card

**For the 2024 Cruise Ship Report Card, we graded cruise lines and 243 cruise ships of those 21 lines operating around the world. All cruise ships from each cruise line were included in this report card. Friends of the Earth relied on data gathered from the internet, government sources, the cruise line industry, and other public sources in order to determine the grades assigned to the cruise lines. Friends of the Earth did not independently verify that the technology graded in the report card was installed on the individual cruise ships. The grades are based on information understood to be accurate as of September 18, 2024. It is possible that changes in practices by a company since that date would warrant a different grade.