Are cruise ships worse for the environment than cars?

A medium-sized cruise ship spews greenhouse gas emissions equivalent to those of 12,000 cars, while environmentalists accuse big industry players of investing little in decarbonization, and of covering up endless delay tactics in a heavy coat of greenwash.



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A medium-sized cruise ship spews greenhouse gas emissions equivalent to those of 12,000 cars, while environmentalists accuse big industry players of investing little in decarbonization, and of covering up endless delay tactics in a heavy coat of greenwash.

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Cruise ships, huge compared to other vessels, end up burning more heavy fuel oil, one of the dirtiest fossil fuels on the market. This oil contains dangerous levels of sulfur and heavy metals etc. It is estimated that cruise ships use, on average, 150 tons of heavy fuel oil every day.

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Cruise ships emit more carbon per passenger kilometre than flying, even considering the extra damage that emissions cause at high altitude. It's thought that the Queen Mary II emits 0.43kg of CO2 per passenger mile – that's even worse than the 0.257kg for a long-haul flight.

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Taking a seven-day cruise is more than three times as carbon-intensive as flying and staying abroad.

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During a typical one-week voyage, a large cruise ship (with 3,000 passengers and crew) is estimated to generate 210,000 US gallons (790,000 L) of sewage; 1 million US gallons (3,800 m3) of graywater (wastewater from sinks, showers, and laundries); more than 130 US gallons (490 L) of hazardous wastes; 8 tons of solid ...

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Port pollution: Cruise ships generate plastic waste not only while at sea but also while in port. This can contribute to plastic pollution in the surrounding waters and on nearby beaches.

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1. The Norwegian company Hurtigruten. Among the most environmentally sustainable ships are certainly the ships of the Norwegian cruise line Hurtigruten. The company has already eliminated heavy fuel oil (HFO) for more than a decade and uses alternative and greener fuels such as marine diesel oil and biofuels.

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Hurtigruten. Hurtigruten was the world's first cruise company to phase out single-use plastics onboard. This 130-year-old Norwegian adventure travel company incorporates a sustainability ethos at its core.

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But just how severe is their impact on the climate? Unfortunately, taking a cruise takes a toll on the planet. Your trip will average anywhere from 700-1000 pounds of carbon emissions a day, which is much higher than flying, driving or a traditional 'land' vacation.

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Carrying more than 90% of the world's trade, ocean-going vessels produce just 3% of its greenhouse-gas emissions. But the industry is dirtier than that makes it sound. By burning heavy fuel oil, just 15 of the biggest ships emit more of the noxious oxides of nitrogen and sulphur than all the world's cars put together.

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Disney Dream and Disney Fantasy are currently not being sent to ports where shoreside power is offered. However, all of Disney's ships burn fuel with a 0.1% sulfur content worldwide which is lower than what is required internationally, earning the company an A- in the air pollution reduction category.

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Some residents in Juneau, Alaska are moving against cruises and want to put a limit on cruise ships that could have an impact on local business. As the pandemic keeps cruise ships grounded, many people are eagerly awaiting cruise ships' return to their hometowns.

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MSC Seaside had a disturbingly low score of 67, while Carnival Liberty, Carnival Pride, and Margaritaville at Sea Paradise squeezed by with scores two scores of 86 and a score of 87, respectively.

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U.S. law requires cruise ships to treat waste within about 3.5 miles of shore—but beyond that, there are no restrictions on dumping polluted sewage and graywater. Researchers have estimated that over a billion gallons of sludge made from excrement and food scraps are released into the ocean every year by cruise lines.

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The easiest way for ships to do this is to liquefy the leftover food in an industrial grinder. The food is blended with water until it's a smooth mixture and then either disposed of in port, incinerated, or pumped out to sea when the ship is deep water and away from the coastlines. Simple as that.

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Barcelona; Venice, Italy; and Key West, Florida; have each moved to limit large cruise ships in recent years for similar reasons. But as they say, a picture is worth a thousand words. Take a look at these striking photos and see for yourself why more cities are saying no to cruise ships.

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Augment this with no dumping solid waste at sea, (e.g. ground glass, cardboard and packing material, plastic), no discharges of hazardous chemicals or materials of unknown environmental impact (e.g., incinerator ash, sludge from smokestack scrubbers), and on all cruise ships have independent human monitors to observe ...

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If a storm is threatening the area a ship was scheduled to sail to, cruise lines will reroute the ships if the forecast is severe enough. While cruise ships can typically outrun most storms, passengers may still experience rough seas as their ship skirts the edges of a weather system.

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How bedbugs end up in cruise ships. Bed bugs usually arrive on ships due to other passengers. Even if you've signed up for a luxury cruise, you could be at risk of getting bed bugs in your room, as this pest is happy to explore, Cruise Critic noted.

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