CRUISE LINES INTERNATIONAL ASSOCIATION 21
75% of the
CLIA-member
fleet capable of
using sustainable
fuels once available
at scale
Up to 90%
of fresh water
produced onboard
Through state-of-the-art
systems and practices,
cruise lines are able to
conserve and repurpose
onboard rather than
drawing from areas where
resources are limited
88% of non-LNG new-build
ships specified for EGCS
Exhaust gas cleaning systems (EGCS)
• 98% reduction in sulfur oxide levels
• 50% reduction in typical total
particulate matter (including elemental
and organic carbon and black carbon)
• 12% reduction in nitrogen oxides
• 79% of global capacity utilizes EGCS
Cruise lines have
dedicated programs and
systems designed to
protect marine life
• Members agree to avoid or
voluntarily reduce vessel speed
in sensitive areas
• Underwater noise and vibration
reduction systems
• Onboard scientists to support
important ocean and marine
life research
Every CLIA-member ship
being built today, except expedition,
is specified to have shoreside
power capability
• 40% of the CLIA cruise line member fleet is
plug-in ready, 30% to be retrofitted
• Only 3% of the world’s ports have onshore power
Some ships
repurpose 100%
of waste
• Programs supporting
land-free ship operations
• Surplus heat transferred from
machinery to heat water for
showers and pools
• Bio-digesters reduce
food waste
THE STATE OF THE CRUISE INDUSTRY 2023
20
CRUISE LEADERSHIP IN
RESPONSIBLE TOURISM
CLIA-member cruise
ships and operations
become more
sustainable and
ecient every year
Cruise ships are subject to multiple
inspections each year –announced and
unannounced – for compliance with strict
environmental and safety regulations.
Source: CLIA Environmental Technologies and Practices
Report (October 2022) and individual cruise line
sustainability reports. Projections are for the CLIA-
member cruise line fleet, inclusive of current ships in
service plus new ships coming online from the date of
this report through 2028, and do not account for vessel
retirements during that period. Vessels most likely to be
retired first are those without, or unable to be retrofitted
with, advanced environmental technologies.
Average age of ships in the
CLIA-member fleet
is 14.1 years
38 LNG-powered ships
specified to be in service by 2028
• LNG reduces GHG more than 20%,
SOx (99%), soot particles (98%),
NOx (85%)
• LNG-fueled vessels can transition
to bioLNG and renewable synthetic
LNG once available at scale
96% of ships have low-
friction hull coatings
Air lubrication systems and
special hull coatings increase
fuel eciency by nearly 10%
100% of new ships specified
for Advanced Wastewater
Treatment Systems
• Advanced wastewater
treatment systems (AWTS)
rival land-based facilities
• 78% of CLIA-member ships
sailing fitted with AWTS
Using digital
technology to be
more energy ecient
• From tracking the energy use of
appliances in a ship’s galley to routing
ships optimally, digital technologies
oer a new energy-saving tool
• Each new class of ship that is
launched is around 20% more
ecient than the last