Bronte Wells
Plastic pollution is the accumulation of plastic objects and particles in the environment, which has harmful effects on wildlife, humans, and their habitats. Plastic pollution is a pressing environmental issue, with plastic debris and microplastics found everywhere from Mount Everest to the Mariana Trench. Plastic waste is particularly prevalent in the oceans, with an estimated 1.1 to 8.8 million tons of plastic entering the ocean from coastal communities each year. The causes of plastic pollution are diverse, including poor waste management, irresponsible disposal of plastics, and the widespread use of single-use plastics. The consequences of plastic pollution are severe, including the entanglement and ingestion of plastic by marine life, the contamination of drinking water, and the release of toxic chemicals into the environment. Addressing plastic pollution requires a range of solutions, from improved waste management and recycling to reduced manufacturing of single-use plastics and the development of more sustainable alternatives.
| Characteristics | Values |
|---|---|
| Definition | Plastic pollution is the harmful accumulation of synthetic plastic products in the environment. |
| Plastic objects and particles | Plastic bottles, bags, microbeads, straws, containers, plastic wrap, etc. |
| Plastic production | From 2.3 million tons in 1950 to 448 million tons by 2015. Production is expected to double by 2050. |
| Plastic waste | About 300 million tons of plastic waste is produced annually. Only 9% of all plastic waste has been recycled, 12% incinerated, and 79% accumulated in landfills, dumps, or the natural environment. |
| Plastic waste in oceans | 1.5–4% of global plastic production ends up in the oceans each year. It is estimated that 1.1 to 8.8 million tons of plastic waste enters the ocean from coastal communities annually. |
| Plastic waste in drinking water | A 2017 study found that 83% of tap water samples taken globally contained plastic pollutants. |
| Plastic health impact | Plastic pollution has negatively impacted human health, with microplastics found in the blood of 80% of people tested in a 2022 study. |
| Plastic impact on wildlife | Plastic pollution has killed thousands of seabirds, sea turtles, seals, and other marine mammals through ingestion or entanglement. |
| Plastic solutions | Improved waste management systems, recycling, better product design, reduction in single-use plastics, and public awareness campaigns. |
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What You'll Learn
Plastic pollution in oceans
Plastic pollution is the accumulation of plastic objects and particles in the Earth's environment, which has harmful effects on humans, wildlife and their habitat. Plastic pollution has become one of the most pressing environmental issues, due to the overwhelming rise in the production of disposable plastic products. It is estimated that 1.5–4% of global plastic production ends up in the oceans each year, mainly due to poor waste management infrastructure and practices, combined with irresponsible attitudes towards the use and disposal of plastics.
Plastics are inexpensive and durable, making them very adaptable for different uses. As a result, manufacturers often choose to use plastic over other materials. However, the chemical structure of most plastics makes them resistant to many natural processes of degradation, meaning they are slow to degrade. This allows large volumes of plastic to enter the environment as mismanaged waste, which persists in the ecosystem and travels throughout food webs.
Plastic in the ocean comes from a variety of land and ocean-based sources and enters the water in many ways. Rivers are the main source of ocean plastic pollution, but there is another major source of plastic in the Great Pacific Garbage Patch—fishing gear. About 80% of the plastic in the GPGP comes from fishing activities at sea, including buoys, eel traps, crates, nets, and oyster spacers. Much of the plastic in the ocean is in the form of abandoned fishing nets, which can entangle and kill marine life.
Once in the ocean, sunlight, wind, and wave action break down marine plastic pollution into small particles, often less than one-fifth of an inch across. These so-called microplastics spread throughout the water column and have been found in every corner of the globe, from Mount Everest to the Mariana Trench. It is estimated that there are now 15–51 trillion pieces of plastic in the world's oceans, from the equator to the poles, and from Arctic ice sheets to the sea floor. Not one square mile of surface ocean anywhere on earth is free of plastic pollution.
The best way to reduce plastic pollution, according to many scientists and conservationists, is to prevent plastics from entering waterways in the first place. This can be achieved through improved waste management systems and recycling, better product design, and a reduction in the manufacturing of single-use plastics.
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Plastic's impact on human health
Plastic pollution is the harmful accumulation of plastic products and particles in the environment. Plastics are large-scale pollutants that persist in the environment for hundreds of years. They have been found in every corner of the globe, from Mount Everest to the Mariana Trench.
The production of plastic has increased exponentially, from 2.3 million tons in 1950 to 448 million tons by 2015, with half of all plastics ever manufactured being made in the last 20 years. This plastic ends up in our oceans, with estimates ranging from 1.1 to 8.8 million tons of plastic waste entering the ocean each year.
The chemical structure of plastics renders them resistant to degradation, allowing large volumes to enter the environment as mismanaged waste. Plastic pollution has been found to adversely affect human health, with vulnerable groups such as children, women, and marginalized communities being particularly at risk.
Plastics contain toxic chemical additives and pollutants that threaten human health. These chemicals are released during the production process and can be inhaled or ingested by humans. Studies have shown that microplastics can enter the human bloodstream and reside in the body indefinitely. They have been detected in human blood, the placenta, and various body parts. Inhalation of microplastics has been identified as a major contributor to their uptake in humans, with these particles entering the body in the form of dust.
The health effects of microplastics include cytotoxicity, allergic reactions, and tissue damage. They have also been linked to endocrine disruption, which can interfere with hormone activity and impact reproduction, growth, and cognitive function. The presence of microplastics in the body may also introduce pathogens, increasing the risk of disease.
While the long-term effects of plastic pollution on human health are not yet fully understood, the existing research highlights the urgent need to address this global crisis and mitigate the impact of plastics on human health and the environment.
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Plastic's impact on wildlife
Plastic pollution is the harmful accumulation of plastic products in the environment. It is a pressing environmental issue, with plastic waste being extremely pervasive and persistent. Plastic pollution is most visible in developing Asian and African nations, but it is a global issue that affects all life, from microscopic animals to large predators and humans.
Plastics are large-scale pollutants that do not biodegrade. Instead, they break down into smaller pieces called microplastics, which can last on Earth for centuries. These microplastics have been found in every corner of the globe, from Mount Everest to the Mariana Trench. They are also present in tap water, with 83% of tap water samples from around the world containing plastic pollutants.
The chemical structure of plastics makes them resistant to degradation, allowing large volumes to enter the environment as mismanaged waste. Plastic pollution can afflict land, waterways, and oceans, with an estimated 1.1 to 8.8 million tonnes of plastic waste entering the ocean from coastal communities each year. Marine plastic pollution can spread around the world, carried by ocean currents.
Plastic pollution has a detrimental impact on wildlife. It can cause entanglement, leading to immobility, suffocation, dehydration, starvation, and eventual death. Plastic can also cause deep cuts and wounds, and impede the ability of birds to fly and hunt. Additionally, wildlife can accidentally ingest plastic, mistaking it for food, which can lead to intestinal blockages, pierced internal organs, and internal bleeding. Microplastics have been found in hundreds of species, including sea turtles, seabirds, and marine mammals.
The presence of microplastics in the environment is a growing concern, as they can pass through the digestive systems of animals without being expelled. Tests have confirmed that microplastics can cause liver and cell damage, as well as disruptions to reproductive systems. The compounds used in manufacturing plastics, such as phthalates, bisphenol A (BPA), and polybrominated diphenyl ether (PBDE), might also be very harmful to wildlife.
To reduce the impact of plastic pollution on wildlife, it is crucial to prevent plastics from entering waterways and oceans through improved waste management systems, better product design, and a reduction in the use of single-use plastics.
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Plastic waste management
Plastic pollution is the harmful accumulation of plastic products and particles in the environment. It is a global problem, with plastic debris found everywhere from Mount Everest to the Mariana Trench. Plastic pollution is most visible in developing Asian and African nations, where garbage collection systems are often inefficient or non-existent. However, developed countries, particularly those with low recycling rates, also struggle to properly collect discarded plastics.
The best way to reduce plastic pollution is to prevent plastics from entering waterways and the ocean through improved waste management systems and recycling, better product design, and a reduction in the manufacturing and use of single-use plastics.
The Basel Convention provides guidance for better management of plastic waste. It is the first international agreement to directly address the issue of plastic pollution. At the 16th Conference of the Parties in May 2023, parties to the Basel Convention adopted technical guidelines on the environmentally sound management of plastic waste.
On an individual level, consumers can cut back on single-use plastics and ensure effective recycling by, for example, using reusable water bottles and straws and cleaning contaminated plastic.
At a systemic level, governments can implement policies to limit or ban the use of plastic bags and other single-use plastics.
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Reducing plastic pollution
Plastic pollution is the harmful accumulation of synthetic plastic products in the environment. Plastic debris and particulates have been found in many environmental niches, from Mount Everest to the bottom of the sea. Plastic is not biodegradable and can persist in the environment for hundreds of years.
To reduce plastic pollution, we must address the issue at its source by improving waste management systems and recycling practices, redesigning products, and reducing the manufacturing and use of single-use plastics. Here are some ways to achieve this:
Improve waste management systems
Better waste management systems can prevent plastics from entering waterways and the ocean, which is crucial as around 80% of marine plastic pollution originates on land. This includes improving garbage collection systems in developing nations and ensuring that recycling programs are effective and accessible.
Reduce single-use plastic manufacturing and usage
Single-use plastics account for 40% of the plastic produced annually, and their lifespan is often just minutes to hours. Governments can play a role by limiting or banning the use of single-use plastic items, such as plastic bags. Individuals can also reduce their consumption of single-use plastics by opting for reusable alternatives, such as water bottles or straws.
Improve product design
Product design can be improved to make plastics more recyclable or biodegradable. However, it is important to note that even biodegradable plastics require industrial composting, which is not widely available. Additionally, some "compostable" plastics are not intended for recycling and can contaminate the recycling stream if not properly disposed of.
Increase recycling and reuse
Recycling and reusing plastic items can help reduce plastic waste. Individuals can recycle plastic bags, wrap, and film through specialized programs, and purchase products made from recycled plastic materials. Reusing items such as water bottles and containers can also help reduce plastic waste.
Support global initiatives
Individuals can support global initiatives, such as the Global Plastics Treaty, which aims to address the lifecycle of plastics and reduce plastic pollution worldwide. Voting for green policies can also bring about systematic change to address plastic pollution.
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Frequently asked questions
Plastic pollution is the accumulation of plastic objects and particles in the Earth's environment, which has harmful effects on humans, wildlife and their habitats.
Plastic pollution has a direct and deadly effect on wildlife. Marine animals like whales, turtles, seals, birds and fish often ingest plastic or get entangled in it, leading to injury and death.
Plastic pollution has been found to contaminate drinking water sources and the food we eat. It is currently unclear what the impact of this is on human health, but scientists have warned that there could be adverse impacts on human well-being.
Scientists and conservationists say that the best way to reduce plastic pollution is to prevent plastics from entering waterways and the ocean in the first place. This can be achieved through improved waste management systems, better product design, and a reduction in the manufacturing and use of single-use plastics.
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