Ten Things You Should Know About Marine Debris

monksealMonkseal being rescued from marine debris

Entangled-harbor-seal NOAA Marine Debris
Our waterways are littered with stuff that doesn’t belong in them. Plastic bags, cigarette butts, fishing nets, sunken vessels, glass bottles, abandoned crab traps…the list is endless. Some of this marine debris comes from human activity at sea, and some of it makes its way into our waterways from land.
While we know that marine debris is bad for the environment, harms wildlife, and threatens human health and navigation, there is much we don’t know. How much marine debris is in our environment? How long does it last? How harmful is it to natural resources or human health and safety? How long does it take to break down in the water? The NOAA Marine Debris Program is finding answers to these questions.

1. It doesn’t stay put

While a lot of debris sinks, much also floats. Once this marine debris enters the ocean, it moves via oceanic currents and atmospheric winds. Factors that affect currents and winds (for example, El Niño and seasonal changes) also affect the movement of marine debris in the ocean. Debris is often carried far from its origin, which makes it difficult to determine exactly where an item came from.

2. It comes in many forms

Marine debris comes in many forms, ranging from small plastic cigarette butts to 4,000-pound derelict fishing nets. Plastic bags, glass, metal, Styrofoam, tires, derelict fishing gear, and abandoned vessels are all examples of debris that often ends up in our waterways.img_0510_ss-1

3. It’s your problem, too

Marine debris is a problem for all of us. It affects everything from the environment to the economy; from fishing and navigation to human health and safety; from the tiniest coral polyps to giant blue whales.

4. NOAA is fighting this problem

The NOAA Marine Debris Program works in the U.S. and around the world to research, reduce, and prevent debris in our oceans and coastal waterways. Much of this work is done in partnership with other agencies, non-governmental organizations, academia, industry, and private businesses.The Marine Debris Research, Prevention, and Reduction Act, signed into law in 2006, formally created the Marine Debris Program. The Act directs NOAA to map, identify, measure impacts of, remove, and prevent marine debris.


5. Some debris is being turned into energy

Abandoned and lost fishing gear is a big problem. It entangles and kills marine life and is a hazard to navigation. Based on a model program in Hawaii, the Fishing for Energy program was formed in 2008 to tackle this problem with creative new ideas. The program is a partnership between NOAA, Covanta Energy Corporation, National Fish and Wildlife Foundation, and Schnitzer Steel.This program offers the fishing community a no-cost way to dispose of old or derelict fishing gear. Once removed from the environment, the gear is transported to the nearest Covanta Energy-from-Waste facility. About one ton of derelict nets creates enough electricity to power one home for 25 days!

6. Marine debris can hurt or kill animals

Marine debris may be mistaken by some animals for food or eaten accidently. Often, larger items like nets, fishing line, and abandoned crab pots snare or trap animals. Entanglement can lead to injury, illness, suffocation, starvation, and even death. NOAA is working with many partners to tackle this problem by reducing and preventing marine debris in our oceans and waterways.

Sea turtle entangled in a ghost net

7. There’s a lot to learn about this problem

We know that marine debris is a big problem, but there’s much we need to learn. NOAA funds projects across the country and works with scientists and experts around the globe to better understand how marine debris moves, where it comes from, and how it affects the environment. This knowledge will help us find better ways to tackle the problem.

8. You can help us get the word out!

The NOAA Marine Debris Program offers a heap of creative products to get the word out about marine debris. Looking for brochures, posters, fact sheets, or guidebooks? We’ve got those. Like videos? We’ve got those, too. We even have a blog! You’ll find it all online.

9. This is a global problem.

Marine debris is a global problem that requires global solutions. NOAA experts work with scientists and organizations around the world to share lessons learned, discover what programs work best, and map out future strategies to fight this problem.


10. Small steps lead to big results

Fighting the marine debris problem begins at home.

  • – Try to cut back on the amount of trash you produce.
  • – Opt for reusable items instead of single-use products.
  • – Recycle as much of your trash as you can.
  • – Join local efforts to pick up trash.
  • – Keep streets, sidewalks, parking lots, and storm drains free of trash—they can empty into our oceans and waterways.


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Minorly adapted from an NOAA article, with added illustrative NOAA images


  1. It’s so sad to see this, people just don’t realize! I do because I clean up our own beach on Lake Michigan, so I imagine it’s so worse in the oceans and judging by the photos . . . will share


    • Each tide brings in more trash, I’m afraid, and more so with high winds and waves. It’s a constant battle. I’ve got another post on this soon. A supposedly pristine beach in the Bahamas is one thing but I really hate the photos of beaches in the wilderness e.g. Alaska covered in plastic. BTW do you get Kirtland’s Warblers in your part of Michigan? RH


  2. Reblogged this on Ecuador Galore and commented:
    Ecuador Galore is not a Public Service Announcement platform. HOWEVER, The subject of Rolling Harbour’s Marine Debris? post affects millions of people worldwide. What can you do to help?


    • Hi Garry, many thanks for kindly passing this one round. I’ll have another marine debris post soon, focussed on the ‘pristine’ white sand beaches of Abaco, Bahamas (population: small). All manner of wonderful objects turn up, some very large, most of them plastic… All the best, RH


    • Hi Nancy, many thanks for reblogging this piece. Aside from the wretched creatures, the NOAA images of trash in pristine environments are quite a shock. I’ll have another post soon about trash on Abaco beaches. We get some amazing stuff – including a booster rocket fairing from the Mars ‘Curiosity’ launch’. All the best, RH


  3. Hi RH! At the risk of sounding”Pro Flotsam and Jetsom”,there is a surprisingly beneficial side to this much despised activity. Many a shipwreck,or marooned seafarer have successfully survived their ordeal via the provisions of societies carelessness, or disregard. I myself have been often rewarded at the high tide lines in the Bahamas. Just sayin’! I have also freed Sea Cows, Sea Birds, Sea Turtles, etc from hooks,lines 6 pac rings, netting, and so forth.


    • I do see that there are two sides to this, Rick… and certainly some quite interesting / useful items wash up on the beach (e.g. the Curiosity launch rocket fairing at Delphi). But all the rope, netting etc and that tasty polystyrene… Mmmmmm, maybe best for the sea creatures if it wasn’t around in the first place? All the best, RH



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