Helena Joyce
Marine pollution is a pressing issue that poses a significant threat to the health and well-being of our planet. Oceans cover 70% of the Earth's surface and are vital to the health of our ecosystem, including humans and other land-dwelling creatures. Billions of pounds of trash and pollutants enter our oceans annually, with plastic pollution being a major contributor. This pollution originates primarily from land-based sources such as runoff, littering, industrial activities, and agriculture. To address this global issue, individuals can make small changes like reducing plastic use, choosing sustainable seafood, and disposing of chemicals properly. Additionally, organizations like the EPA are taking action by committing funds to improve recycling infrastructure and restore ecosystems. Treaties such as the London Protocol and global initiatives are also working towards reducing plastic production and implementing stricter regulations on disposable plastic items.
| Characteristics | Values |
|---|---|
| Marine pollution sources | Land-based sources (80%) – cars, boats, farms, construction sites, littering, industrial activities, tyre abrasion, stormwater runoff, etc. |
| Marine-based sources – paint shed from shipping, discarded fishing gear, etc. | |
| Types of pollution | Chemical contamination (e.g. nitrogen, phosphorus), nutrient pollution, trash (mainly plastic) |
| Impact of pollution | Damage to the environment, health of organisms, and economic structures worldwide |
| Negative health outcomes for humans and marine life | |
| Biodiversity loss, ecosystem degradation, and contribution to climate change | |
| Impact on economies, including income declines in sectors such as tourism, fisheries, and agriculture | |
| Solutions | Reduce, reuse, and recycle plastics and other materials |
| Choose sustainable seafood, fertilizers, and energy-efficient options | |
| Improve waste management practices and promote marine protected areas | |
| Foster a sustainable blue economy and support maritime security | |
| Address sewage and agricultural non-point source pollution | |
| Implement international agreements and regulations, such as the London Protocol and bans on disposable plastic items |
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What You'll Learn
Reduce plastic use and opt for reusable alternatives
Plastic pollution is one of the greatest threats to ocean health, with billions of pounds of trash and other pollutants entering our oceans annually. Eighty per cent of marine plastic pollution originates on land, carried by rainfall runoff, wind, or rivers into the sea. To control plastic pollution in the marine environment, it is essential to reduce plastic use and opt for reusable alternatives.
One of the most effective ways to achieve this is to refuse single-use plastics and choose reusable options instead. Single-use plastics, such as plastic bags, straws, disposable cutlery, takeout containers, and plastic bottles, are significant contributors to ocean pollution. By refusing these items and carrying reusable alternatives, such as reusable grocery bags, produce bags, bottles, utensils, and coffee cups, you can significantly reduce your plastic footprint. Many governments and organizations are also taking steps to phase out single-use plastics, with over 500 cities and states introducing legislation to discourage plastic bag use.
Another way to reduce plastic pollution is to be mindful of product packaging. Opt for products with minimal or no plastic packaging, and consider buying in bulk to reduce the amount of packaging needed per unit of product. Avoid products containing plastic microbeads or microplastics, often found in cosmetics and personal care items like facial scrubs, toothpaste, and body washes. These tiny plastic particles can slip through water treatment plants and are often mistaken for food by marine animals.
Water bottle filling stations are also being prioritized in many places, encouraging the use of reusable bottles and providing easy access to refills. By carrying a reusable bottle, you can save money and reduce the number of single-use plastic bottles that end up in the trash each year, which is close to 20 billion.
In addition to individual actions, it is important to advocate for legislation that reduces plastic production and improves waste management. Support local, national, and international initiatives that aim to address plastic pollution and hold plastic producers accountable for the waste they generate. By combining individual behaviour changes with systemic efforts, we can make a significant impact in reducing plastic pollution in our marine environment.
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Dispose of toxic chemicals and waste properly
The improper disposal of toxic chemicals and waste has a devastating impact on marine life and ecosystems. When toxic waste harms one organism, it can end up destroying an entire food chain of aquatic life. For example, when fish eat affected marine life, they can be harmed, and then in turn, sea birds that eat those fish can be harmed. This is known as biomagnification, where animals higher in the food chain accumulate harmful toxins in high concentrations.
To prevent this, it is imperative that toxic chemicals and waste are disposed of properly. This means not dumping them down the drain or into water sources, where they can easily enter the ocean and harm marine life. In most cases, dumping chemicals is illegal, and it is best practice to use a hazardous waste disposal company. These companies are skilled and trained to properly dispose of harmful chemicals according to state and federal legislation.
At an individual level, people can choose non-toxic chemicals and dispose of herbicides, pesticides, and cleaning products properly. For example, opting for organic fertilizers over chemical fertilizers can help, as excess chemical fertilizer eventually makes its way into the oceans. Additionally, people can reduce their use of single-use plastics, which are a significant source of ocean pollution, and instead opt for reusable bottles and utensils.
On a larger scale, governments and organizations play a crucial role in controlling marine pollution. The Marine Protection, Research, and Sanctuaries Act (MPRSA) in the United States, enacted in 1972, regulates the transportation and disposition of materials in the ocean that could adversely affect human health, the environment, and marine life. The London Convention, of which the US is a member, is an international treaty organization with the aim to protect the ocean from the deliberate disposal of wastes. The US Environmental Protection Agency (EPA) has committed significant funding towards improving recycling infrastructure and restoring ecosystems to reduce land-based sources of plastic waste and pollution in the marine environment.
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Cut down on water usage to reduce runoff
Water is essential for various human activities, but excessive water usage can contribute to runoff pollution, which ultimately affects our marine environment. Here are some ways to cut down on water usage and, consequently, reduce runoff pollution:
Reduce Water Consumption
- One of the most direct ways to reduce water usage is to simply use less water in your daily life. This can include shortening your shower time, turning off the faucet while brushing your teeth or washing dishes, and fixing any leaking faucets or pipes.
- Encourage your local community and authorities to invest in water-saving infrastructure. For example, the EPA committed USD 140 million to improve recycling infrastructure and reduce plastic waste in the marine environment.
Implement Efficient Irrigation Practices
- If you have a garden or lawn, consider using water-efficient irrigation methods, such as drip irrigation or water-conserving sprinklers. Avoid overwatering your plants and adjust your watering schedule according to the weather.
- Reduce the amount of water lost to evaporation by watering during the early morning or late evening hours when temperatures are cooler.
Maintain Septic Systems
- If you have a septic system, proper maintenance is crucial. Regularly inspect and pump your septic tank to prevent overflow and potential pollution of nearby water bodies.
- Direct your downspouts towards vegetated areas instead of storm drains to reduce the volume of water entering the drainage system.
Practice Regenerative Agriculture
- For farmers, implementing regenerative agriculture practices can help reduce polluted runoff. These practices include crop rotation, cover cropping, and reducing tillage.
- Adopting organic fertilizers and reducing the use of chemical fertilizers can also decrease the amount of excess fertilizer that ends up in water bodies.
Create "Green Infrastructure" in Urban Areas
- Urban and suburban areas can benefit from creating "green infrastructure" to reduce runoff pollution. This includes planting rain gardens and other natural spaces in low-lying areas to absorb and filter stormwater.
- Replacing impervious surfaces, such as old pavement, with pervious alternatives can also help reduce runoff by allowing water to infiltrate the ground.
By following these measures, we can reduce our water usage and, in turn, minimize runoff pollution, contributing to a healthier marine environment.
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Choose sustainable seafood and agricultural products
Marine pollution is a pressing issue that poses a significant threat to the health and well-being of our planet. Oceans make up 70% of the Earth's surface and are crucial for the health of our ecosystem, including human health. Thus, it is essential to take steps to control marine pollution and protect our oceans. One important way to achieve this is by choosing sustainable seafood and agricultural products.
The seafood industry has had a significant impact on the environment. The United Nations Food and Agricultural Organization estimates that 85% of marine fish stocks are either fully exploited or overfished. Unsustainable fishing practices, such as IUU fishing, where businesses circumvent conservation and management measures, contribute to the deterioration of coastal habitats and biodiversity loss. By choosing sustainable seafood, consumers can play a crucial role in encouraging improvements in fishing and fish farming practices.
Sustainable seafood is wild-caught or farmed seafood that is harvested or produced in ways that protect the long-term health of species populations and ecosystems. Reputable organizations like the Marine Stewardship Council (MSC) for wild-caught seafood and the Aquaculture Stewardship Council (ASC) for farmed seafood offer certification programs to verify the sustainability of seafood products. These certifications ensure that seafood is sourced from responsibly managed fisheries and farms, helping to minimize damage to vulnerable habitats and species.
When choosing seafood, consumers can look for the MSC and ASC labels to make informed and sustainable choices. Additionally, diversifying seafood choices and opting for more sustainable local options can support local fishers and reduce pressure on wild populations. Seafood profiles and guides, such as those provided by NOAA Fisheries and the Marine Conservation Society, offer valuable information on the sustainability of various seafood options.
Agricultural practices can also contribute to marine pollution through non-point source pollution, where chemicals and fertilizers from farms eventually make their way into oceans via runoff. To address this, individuals can choose organic fertilizers, which tend to be lower in nutrients, and use them sparingly. Supporting sustainable agricultural practices and purchasing sustainable agricultural products can help reduce the impact of agriculture on marine environments.
In conclusion, choosing sustainable seafood and agricultural products is a direct and effective way for individuals to play their part in controlling marine pollution. By being mindful of the environmental impact of the seafood and agricultural products we consume, we can collectively make a significant difference in protecting our marine environment.
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Support recycling and waste management initiatives
Recycling and waste management initiatives are crucial in the fight against marine pollution. Marine pollution is predominantly caused by human activities, with 80% of ocean pollution originating on land. Therefore, it is essential to implement effective waste management strategies and encourage recycling to reduce the amount of pollution entering our oceans.
One way to support recycling initiatives is to promote the reduction of single-use plastic products. Single-use plastic items such as bottles, straws, utensils, and shopping bags are significant contributors to marine pollution. These items are often used just once and then discarded, ending up in our oceans and causing harm to marine life. By encouraging the use of reusable alternatives, we can significantly reduce the amount of plastic waste that enters our marine environment. Governments and organizations can play a role by enacting regulations and bans on single-use plastic items, as seen in over sixty countries according to a 2018 United Nations report.
Individuals can also support recycling initiatives by properly disposing of waste and choosing sustainable alternatives. This includes recycling and properly disposing of items like herbicides, pesticides, and cleaning products, which can contain toxic chemicals that harm marine life if they enter the ocean. Additionally, individuals can reduce their plastic consumption by opting for reusable bags, bottles, and utensils, and supporting products made from recycled materials. Supporting recycling initiatives also involves buying less plastic and choosing products with minimal packaging to reduce the amount of plastic waste generated.
Waste management initiatives are crucial in preventing marine pollution. Proper waste disposal and treatment are essential to ensuring that pollutants do not enter our oceans. This includes the responsible management of landfills and the implementation of best practices to divert recyclable and reusable materials from landfills. For example, the Texas Disposal Systems company in the United States diverts approximately 440,100 tons of reusable and recyclable materials from landfills annually through their Material Recovery Facilities.
Furthermore, waste management initiatives can focus on improving recycling infrastructure to reduce land-based sources of plastic waste. The United States Environmental Protection Agency (EPA) committed USD 140 million to improving recycling infrastructure to combat marine pollution. Additionally, the EPA works to regulate ocean dumping and provide technical support to ensure that ocean disposal is appropriately managed to safeguard human health and the marine environment. This includes designating ocean disposal sites and implementing controls, conditions, and requirements to minimize potential impacts on the marine environment.
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Frequently asked questions
Marine pollution is caused by a combination of chemicals and trash, most of which comes from land sources. This includes littering, storm winds, poor waste management, runoff from farms, roads, and construction sites, and industrial activities.
Plastic waste is a significant contributor to marine pollution. Plastic items can take hundreds of years to decompose, and during this time, they can pose dangers to marine life and humans. Plastic waste can entangle and injure fish, be ingested by animals, and break down into microplastics that are consumed by small organisms and absorbed into the food chain.
To control marine pollution, individuals can reduce their use of single-use plastics, properly dispose of chemicals and waste, cut down on water usage, choose sustainable seafood, and volunteer for beach and community cleanups. On a larger scale, countries are enacting regulations to limit or ban disposable plastic items, and organizations like the EPA are committing funds to improve recycling infrastructure and restore ecosystems.
