Taking a seven-day cruise is more than three times as carbon-intensive as flying and staying abroad.
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Research shows that cruising emits up to four times more CO2 per passenger than flying. While air travel costs between 0,11 and 0,16 kg per passenger per kilometer – a significant amount -, taking a cruise ship adds up to a staggering 0,40 kilograms per kilometer.
Flights emit 500 grams of carbon dioxide/metric tons of cargo per kilometer of transportation. However, ships emit only between 10 to 40 grams of carbon dioxide per kilometer. The carbon footprint of airplanes is 20 to 30 times more than ships.
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.
Cruise Ship PollutionAlthough cruise ships make up only 1 percent of the global fleet, they account for 6 percent of black carbon (BC) emissions. This reveals how disproportionately bad for the environment cruise ships are, releasing the highest amount of black carbon per ship of any vessel.
A June study from sustainable transport campaigner The European Federation for Transport and Environment found that 63 cruise ships owned by parent company Carnival Corporation emitted 43% more sulfur oxides, a group of harmful air pollutants, than all the 291 million cars in Europe in 2022.
Trains. Besides walking and biking, traveling by train remains one of the greenest and most environment-friendly options when getting around. Regardless if electric or diesel-powered, trains emit between 66 and 75 percent fewer carbon emissions when compared to cars and airplanes.
How much pollution is caused by a cruise ship? As per the Bureau of Transportation Statistics, a 3000-passenger cruise ship generates one million gallons of gray water, 210,000 gallons of sewage and 25,000 gallons of oily bilge water in just 7 days.
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.
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.
Flights emit 500 grams of carbon dioxide/metric tons of cargo per kilometer of transportation. However, ships emit only between 10 to 40 grams of carbon dioxide per kilometer. The carbon footprint of airplanes is 20 to 30 times more than ships.
Just exactly how bad is flying really? Air travel accounts for 2.5% of global carbon emissions. In the US, flying accounted for 8% of transportation emissions, but less than 3% of total carbon emissions.
The aviation industry represents 7.8% of final oil consumption worldwide, while maritime shipping accounts for 6.7%. Consumption by the aviation industry is growing the most rapidly – in fact, up until the early 1980s, it was responsible for less energy use than shipping.