International Coastal Cleanup Marks 41 Years with 3,291 Pounds Collected

The International Coastal Cleanup’s value comes from what volunteers remove and what they record. At two events marking the effort’s 41st year, 589 volunteers collected 3,291 pounds of trash. Their observations also add to a long-running record of marine debris that researchers and conservation groups use to track pollution and assess ways to reduce it.

Ocean Conservancy held the events at Alamitos Beach in Southern California and Anacostia Park beside the Anacostia River in Washington, D.C. The Long Beach-area cleanup took place on September 19, drawing more than 150 volunteers who removed 1,109 pounds. Team USA Artistic Swimming members and Olympic and Paralympic athletes joined them. In Washington, 439 volunteers gathered on September 26 and collected 2,182 pounds.

The totals offer a snapshot of activity at two locations, while the wider effort shows how community cleanups can produce information as well as immediate results. Over four decades, nearly 20 million volunteers have removed more than 405 million pounds of trash from shorelines and waterways around the world. Participants have also documented nearly 440 million individual items.

Cleanup records help show what reaches waterways

Volunteers record the items they find using Ocean Conservancy’s Clean Swell app or paper data sheets. Those entries feed an online, open-access database that the organization describes as the world’s largest repository of marine debris data. The record can help scientists and conservation groups see which kinds of trash appear, where they are found, and how patterns may change over time.

That information adds context to the weight collected at a single event. A total in pounds shows the scale of a cleanup, but item-by-item records can help distinguish common types of litter and identify recurring sources. Repeated observations across many locations can give researchers a broader basis for examining pollution trends and considering where prevention may have the greatest effect. The database does not, by itself, explain why an item reached a beach or prove that a particular intervention caused a change. It does provide a substantial body of field observations for further study.

Ocean Conservancy says the cleanup records have already informed research and action. Data from the effort were used in a peer-reviewed study that found plastic bag bans lead to reduced plastic bag pollution. The organization also cites the data in connection with measures in California and Florida and the Farewell to Foam Act. These examples illustrate how records gathered during local cleanups can contribute to wider efforts to reduce particular forms of plastic waste.

From collection to evidence

Allison Schutes, Ocean Conservancy’s senior director of conservation cleanups, thanked participants at the Long Beach event and the volunteers who have taken part over the past 41 years. She said collected plastic can help protect marine animals and habitats while contributing to research and advocacy.

That connection between action and information is the cleanup’s distinctive feature. Removing litter can reduce the material left on a shoreline, while careful documentation helps build a picture of the debris found there. Each volunteer’s record is only one observation; its wider usefulness comes from combining it with many others. Consistent reporting makes it easier to compare what volunteers find across places and over time.

Still, cleanup totals are not a full measure of the pollution entering an ecosystem. They count what participants encounter and collect during a defined activity. Items that are buried, carried elsewhere, or too small to identify may not appear in the tally. The records are most useful when understood as field data that can guide questions and support broader research, rather than as a complete inventory of all marine debris.

The two September gatherings show how an event can bring people together around a visible task while adding to that longer evidence base. The 1,109 pounds collected near Long Beach and 2,182 pounds gathered along the Anacostia River are local results within a much larger effort. The accumulated record also helps clarify which kinds of litter merit closer attention and whether efforts to reduce them are reflected in what volunteers find.

Taking part

People can join a nearby cleanup, log collected items through Clean Swell, or explore Ocean Conservancy’s other resources for reducing plastic pollution. Recording the debris matters: it turns a day of collection into information that can be compared and used after the event ends. For those who can’t attend, the organization also offers ways to support its work and estimate potential benefits for marine wildlife.

The 41-year record points to a practical takeaway: local cleanups can address litter at the water’s edge and contribute observations to a much broader effort. Continued participation and consistent records will help show what keeps appearing on shorelines—and whether actions to reduce that waste are making a difference.

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