Please select your home edition
Edition
Pantaenius Sail 2025 AUS Leaderboard

Celebrating Boyan Slat, The Ocean Cleanup, and the organization's 30 Cities Program

by David Schmidt 16 Jul 07:00 AEST July 15, 2025
Boyan Slat, CEO of The Ocean Cleanup, in Panama © The Ocean Cleanup

The old cliche goes that one should avoid meeting one's heroes, as there's always a chance that the flesh-and-blood person might not live up to expectations. While I've never met Boyan Slat, the almost-31-year-old Dutch CEO of The Ocean Cleanup, the nonprofit that he founded in 2013 to remove floating plastic from the world's oceans by developing and scaling technologies, I'd gladly take this risk to thank him for the great work that he's been doing for the planet.

For anyone who doesn't know, The Ocean Cleanup's stated goal is to remove 90 percent of all floating plastic from the world's oceans by 2040. If successful, the organization will effectively put itself out of business, however this is a career risk that Boyan and his organization are willing to accept.

The organization's approach to sequestering and removing floating plastic has long involved oceans and rivers, and The Ocean Cleanup has created technologies for both environments.

Recently, however, the organization has also decided to target entire cities.

In all cases, The Ocean Cleanup has developed technologies and tactics for sequestering, collecting, and recycling this mess, and as mentioned, they have learned to scale these technologies (and tactics) to best fit the problem(s).

On the offshore side of the equation, The Ocean Cleanup has created System 03 (AKA "Josh"), which is a 1.19 nautical mile floating barrier (picture a massive U-shaped device) that consists of two wings that are each four meters deep. The inboard ends of each wing are attached to a centralized detention zone, which is effectively a giant garbage bag where the plastic refuse is collected, while the outboard ends are attached to two slow-moving vessels that each sail at about 2.5 knots.

Fish can swim in and out of System 03, and onboard cameras allow operators to see what's happening in real time.

Once the centralized detention zone is full (this can take a few days), one vessel takes both wings in tow, while the other retrieves the garbage bag and dumps its contents onto its deck, where it's sorted for recycling by the vessel's crew based on the types of plastic involved. The centralized detention zone is then reattached to the wings, and the skimming effort resumes operations.

The Ocean Cleanup sails System 03 through so-called hotspots (Example A: The Great Pacific Garbage Patch), which constantly move based on circulating ocean currents. Here, the organization uses computer modeling to try and determine the real-time locations of these hotspots, which they then skim clean with System 03.

Rivers, of course, present different challenges than floating garbage patches.

According to Slatt, just 1 percent of all rivers are responsible for carrying about 80 percent of all plastics into the world's oceans. In real-world terms, this represents 1,000 rivers, globally.

Here, a 1.19 nautical mile wide floating barrier isn't practical, so The Ocean Cleanup has created a portfolio of five different Interceptors designs, which can be deployed to rivers of different depths, widths, and flow rates to best match localized conditions.

In all cases, The Ocean Cleanup works with local partners to ensure that the plastic garbage that they are collecting is fed into the proper recycling streams.

Last month, The Ocean Cleanup unveiled their 30 Cities Program at the UN Ocean Conference (June 9-13), which was held in Nice, France. This program will scale and employ different Interceptors at 30 different cities in Asia and the Americas, with the stated goal of eliminating 30 percent of all plastic that's flowing towards the world's oceans by the decade's end.

Instead of focusing on individual rivers, the 30 Cities Program will instead concentrate on entire cities using a data-driven approach involving drones, GPS tagging, and AI-powered analysis. The initiative will focus on removing plastic detritus from rivers, coastlines, mangroves, and coral reefs, thus shutting off the flow of new plastics into the oceans, while also removing legacy plastics.

The Ocean Cleanup is targeting Panama City, Panama as their first deployment, and Mumbai, India; Manila, Philippines; Montego Bay, Jamaica; Jakarta, Indonesia; Kuala Lumpur, Malaysia; Bangkok, Thailand, and Los Angeles are set to follow.

"When we take on an entire city, instead of individual rivers, we can scale faster, reduce costs, and maximize impact," said Slat in an official communication. "Our analysis shows that strategically deploying Interceptors across just 30 carefully chosen cities can stop up to a third of river plastic pollution worldwide. This is the next big leap toward our ultimate goal of a 90 percent reduction in global ocean plastic pollution."

If you were lucky enough to have raced (or be racing) to Hawaii in this month's Transpac Race and noticed less plastic in the water than during your last marathon push to Diamond Head, odds are good that Slatt and The Ocean Cleanup were involved.

Given my job as a journalist, I've had the chance to meet many of my sailing, climbing, and mountaineering heroes. While there's always a risk of not liking the cut of someone's jib once they are standing in front of you, this is a risk I'd gladly take to meet Slatt.

Afterall, Slatt has dedicated his life to physically improving the health of the world's oceans. What's not to like about that jib?

To learn more about The Ocean Cleanup or to support their efforts, navigate your web browser to www.theoceancleanup.com

May the four winds blow you safely home.

David Schmidt
Sail-World.com North American Editor

Related Articles

Don't miss our upcoming must-watch free Webinar
Tracking and Fleet Monitoring discussion on 22nd October 2025 Yacht tracking and fleet monitoring are essential, ye traditional tracking methods face significant challenges. On October 22nd we are hosting an exclusive and free webinar, with an in-depth exploration of the latest in tracking technology. Posted on 8 Oct
SailGP rolls through Cadiz, One Design racing news
F50s in Cadiz, Formula Kites, J/22s, Hobie 16s, and GL52s SailGP has enjoyed a fine tour of the United Kingdom and Europe of late. This wrapped up this past weekend in Cadiz, Spain, where the DP World Spain Sail Grand Prix was contested using the league's 24-meter wingsails and the light-air T-foils and rudders. Posted on 7 Oct
Opportunity knocks
Time with Keryn McMaster was on offer, so yeah, let's do this! Best grab it with both hands, then. Time with Keryn McMaster was on offer, so like, yeah, let's do this! She's a bit of ledge, so she fits in very well with the precursor piece we did on the Admiral's Cup, which was entitled: The call of the mighty. Posted on 6 Oct
Crossroads Moment for Olympic Sailing
Many changes to scoring over the last 20 years - it looks like it's all going to change again Perceived lack of attention span, confusing scoring systems, the need for TV to have an understandable format and grandstand' moment has led Olympic sailing to experiment with various formats over the past 20 years, and it is now looking to change again. Posted on 29 Sep
SailGP, TOR Europe, Women's Match Racing Worlds
Good things often happen when preparation meets opportunity Good things often happen when preparation meets opportunity. Such was the case for the Germany SailGP Team presented by Deutsche Bank squad when they notched their first-ever SailGP event win at last weekend's Rolex Switzerland Sail Grand Prix. Posted on 23 Sep
And so, it begins…
Grand Final not run yet, but our Hobart coverage begins with something very cool Maybe a tad earlier than last year, which I think was after the Grand Final, but the 100th entrant seemed like a good place to set things off. Now with that said, Sail-World's Hobart coverage begins. Posted on 21 Sep
Growing Female Participation in Sailing
Success Stories in the Flying Fifteen fleet It's been an incredible summer of sailing in the UK, and one of the highlights for me has been talking with competitors at major events, learning how they started sailing, what they love most about the sport, and their visions for the future. Posted on 16 Sep
Dr. Peter Puskic on TOC's Pacific Data Expedition
Dr. Peter Puskic discusses The Ocean Cleanup's Pacific Data Expedition This year, The Ocean Cleanup teamed up with some of the returning Transpac fleet to gather data on the Great Pacific Garbage Patch using innovative camera technology and AI that the organization developed. Posted on 16 Sep
Globe40 and La Solitaire du Figaro Paprec
A look at the Globe40 and the La Solitaire du Figaro Paprec It's always an encouraging sign when a round-the-world race begins its second edition, especially when the steeds in question are approachable boats for most serious sailors. Posted on 9 Sep
You just gotta love a good algorithm
So, I opened up YouTube, and there it was. Could not believe my luck, actually. So, I opened up YouTube, and there it was. Could not believe my luck, actually. The algorithm had coughed up something I really wanted to watch. Yes, I know it means Big Brother is watching and listening.Also, every key stroke is being recorded. Posted on 7 Sep
Cyclops Marine 2023 November - FOOTERB&G Zeus SR AUSV-DRY-X