More than
200 cruise ships operate worldwide, stopping in over 1800 ports across the
seas. In 2009, in excess of 13.5 million
people around the globe took an ocean cruise.
In less than 2 weeks my family will be among the cruisers of the
world! Before we set sail, I thought it
would be interesting to look at some of the behind the scenes happenings on
these ships to see how these floating cities are becoming more environmentally friendly.
As the
world’s largest cruise operator, Carnival Cruise Lines understands the
company’s future depends upon the health of the world’s oceans. The cruise line is aggressively seeking both
high- and low-tech solutions to manage the environmental impact of its fleet
and preserve important natural resources.
Carnival
recycles, incinerates or offloads all waste materials for disposal on
land. Guests are also involved in the
recycling program. Specially marked
containers are placed throughout the ships to encourage them to recycle. Cooking oil and grease are stored in special
holding tanks after use and then reused onboard as alternative fuel. Carnival’s environmental efforts are not just
limited to recycling and waste disposal.
The line is also researching the development of several options for the
treatment of gray water (wastewater from sinks, showers and kitchens). They currently have two ships with advanced
waste water treatment systems. After
treatment this water can be used for toilet flushing, laundry and deck
washing. In addition, all shipboard
employees are required to attend a course which provides instruction on waste
management.
Other cruise
lines are also working to improve their environmental impact. Many have also invested millions of dollars
on high-tech wastewater treatment and onboard recycling. Newer ships are being equipped with
state-of-the-art solid waste grinding and incineration equipment, in addition
to the installation of cleaner gas and diesel engines. On Disney Cruise Lines, the laundry
facilities use water that is generated from the air conditioning
system—specifically 280 tons a day of water.
Excess heat is used to power evaporators that turn 1,200 tons of
seawater into potable water each day.
Norwegian Cruise Lines was the first to install an eco-ballast system to
ensure that water leaving the ship does not send out toxins or other invasive
species. The elevators on the Celebrity
Cruise Lines Solstice-class ships are designed to run on solar power, which is
an industry first.
As you can
see, the cruise industry has come a long way from the days of birds following
the path of a cruise ship to feast on the discarded garbage. Today’s ships are designed for fun,
exploration and the creation of vacation memories--not at the expense of future
generations! What are other cruise companies
doing to improve their environmental impact?