Do Cruise Ships Dump Poop in the Ocean?

By Michael Ferguson

Cruise ships are a popular mode of travel for many individuals and families. They offer the opportunity to visit multiple destinations in one trip while enjoying all the amenities at sea.

However, there have been concerns about the environmental impact of these massive vessels, particularly when it comes to waste disposal. One question that often arises is whether or not cruise ships dump poop in the ocean. Let’s explore this topic further.

The Short Answer

Yes, some cruise ships do dump poop in the ocean. However, it’s important to note that this practice is heavily regulated and monitored by international laws and regulations.

The Long Answer

Cruise ships generate a significant amount of waste, including human waste (sewage), food waste, and other types of garbage. According to the Cruise Lines International Association (CLIA), an estimated 25,000 gallons of sewage is generated each day on a typical cruise ship carrying 3,000 passengers and crew members.

So what happens to all this waste? Most modern cruise ships are equipped with advanced wastewater treatment systems that treat sewage and other wastewater before discharging it into the ocean. These systems use a combination of physical, biological, and chemical processes to remove pollutants and bacteria from the wastewater.

However, not all cruise ships have these advanced treatment systems. Some older vessels may still use outdated methods such as “overboard discharge,” which involves dumping untreated sewage directly into the ocean. This practice is illegal in most parts of the world, including the United States and Europe.

Regulations on Poop Disposal

The international maritime community has taken steps to regulate wastewater discharges from cruise ships. In 1973, the International Convention for the Prevention of Pollution from Ships (MARPOL) was adopted by member countries of the International Maritime Organization (IMO). MARPOL sets limits on discharges of oil, chemicals, sewage, and garbage from ships.

Under MARPOL, cruise ships are required to discharge treated wastewater at least 12 nautical miles from shore. They are also prohibited from discharging untreated sewage within three nautical miles of shore.

In addition, the United States has its own regulations concerning wastewater discharges from cruise ships. The Clean Water Act (CWA) regulates discharges of pollutants into U.S. waters, including those generated by cruise ships. The Environmental Protection Agency (EPA) has established limits on the amount of pollutants that can be discharged, including fecal coliform bacteria.

Conclusion

In summary, while some cruise ships do dump poop in the ocean, it’s a heavily regulated practice that is monitored by international laws and regulations. Most modern vessels use advanced wastewater treatment systems to treat sewage before discharging it into the ocean. Passengers can also do their part to minimize their impact on the environment by practicing responsible waste disposal and supporting companies that prioritize sustainability efforts.