Alexei Volkov
Plastic is everywhere, and it is a major global problem. Plastic pollution is most visible in developing Asian and African nations, but no country is immune. It is a significant threat to our environment, and by 2050, the amount of plastic in the ocean is predicted to outweigh the amount of fish. Plastic is harmful to animals, and it is also harmful to humans. It is virtually indestructible, and it does not break down. Instead, it breaks up into microplastics, which are spread throughout the water column and have been found in every corner of the globe, from food to air to drinking water to human organs.
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What You'll Learn
Plastic is not biodegradable
Plastic is a significant environmental problem. It is everywhere, and the ocean is awash with it. More than eight million tonnes of plastic enter the world's oceans each year, and it can take years to break down. It is thought that more than five trillion pieces of plastic are currently floating in the oceans, and by 2050, the amount of plastic in the ocean will weigh more than the fish.
The process of biodegradation usually occurs fastest in hot, wet environments with enough microorganisms, such as damp leaves on the ground in a warm tropical forest. However, the enzymes in the microorganisms that break down biodegradable materials do not recognize the bonds that hold polymers together. This is because polymers like polypropylene are not abundant in nature.
While there are now 'biodegradable' plastics, these are not a solution to the problem of plastic waste. These products are intended for short-lived use and often stay in the environment for a very long time before they degrade. They require specific conditions to biodegrade, such as in industrial composting plants with defined temperatures, microorganisms, oxygen, moisture, and time. In natural conditions, they may biodegrade slowly or not at all, or fragment into microplastics.
The only effective way to tackle the problem of plastics in the ocean is to reduce their use, boost reuse, and, as a last resort, recycle them.
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Plastic harms animals and the environment
Plastic is a man-made material produced from natural resources such as coal and oil. It is a popular material because it can be made into a variety of shapes, colours, and sizes. However, plastic is causing a big problem for our planet.
Firstly, plastic is not biodegradable. It does not rot like paper or food, and instead, it can remain in the environment for hundreds of years. Each year, 400 million tonnes of plastic are produced, and 40% of that is single-use plastic, such as carrier bags, drinks bottles, and crisp packets. More than eight million tonnes of plastic enter the world's oceans each year, and it can take years for it to break down.
Secondly, plastic waste in the oceans kills around 100,000 marine animals every year, including birds, fish, and shellfish. They often mistake plastic for food, which can lead to digestive tract blockage, pierced internal organs, and starvation. Plastic bags can also suffocate animals that get entangled in them. In addition, plastic waste can alter habitats and natural processes, reducing ecosystems' ability to adapt to climate change and directly affecting millions of people's livelihoods, food production capabilities, and social well-being.
Lastly, plastic pollution is not just a problem for wildlife but also for humans. Microplastics have been found in municipal drinking water systems, and studies have detected microplastics in human blood, lungs, and faeces. While the exact impact of microplastics on human health is still being studied, there are concerns about the potential harm they may cause.
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Plastic is a global problem
Plastic is a man-made material invented in the early 1900s to replace natural materials such as ivory and tortoiseshell. Its production has since escalated to extreme levels, surpassing all other man-made materials except steel and cement. The world produces around 350 million tonnes of plastic waste each year, and about eight million tonnes of this escapes into the oceans from coastal nations. This is the equivalent of setting five garbage bags full of trash on every foot of coastline worldwide.
The environmental impact of plastic is devastating. It can alter habitats and natural processes, reducing ecosystems' ability to adapt to climate change and directly affecting millions of people's livelihoods, food production capabilities, and social well-being. Plastic pollution is most visible in developing Asian and African nations, where garbage collection systems are often inefficient or non-existent. However, even in developed countries with low recycling rates, properly collecting discarded plastics can be challenging.
Plastic is virtually indestructible, and it does not rot or break down. Instead, it can remain in the environment for hundreds of years, continually fragmenting into smaller pieces called microplastics. These microplastics have been found in every corner of the globe, from Mount Everest to the Mariana Trench, and are spread throughout the water column. They are also present in municipal drinking water systems and drifting through the air. Studies have found microplastics in human blood, lungs, and even faeces, and scientists are urgently trying to determine the health impacts of this.
Animals are also severely impacted by plastic pollution. They can become entangled in plastic, inhibiting their ability to swim and feed, and it can be fatal. Additionally, birds, fish, and shellfish can mistake plastic for food, and it can fill their stomachs, leaving no room for actual nourishment. Each year, 100,000 marine animals are killed by plastic, and nearly 2,100 species, including endangered ones, are known to have been affected.
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Plastic production is increasing
Plastic is everywhere, and it is a major problem for our planet. It is in our clothing, crisp packets, bottles, buckets, and even in the new £5 and £10 notes. The versatility of plastic materials accounts for their continued popularity and production growth year after year. Plastic is produced from natural materials like coal and oil, and the first synthetic plastic was created over 100 years ago.
Plastic is a popular material because it can be made into all sorts of shapes, colours, and sizes. It is also cheap and lightweight, which is good for the environment in terms of fuel used. However, the problem with plastic is that most of it is not biodegradable. It does not rot like paper or food, so it can remain in the environment for hundreds of years, causing harm to animals and the environment.
The rapid growth in global plastic production started in the 1950s, and since then, annual production has increased nearly 230-fold to 460 million tonnes in 2019. Even in just the last two decades, global plastic production has doubled. The world produces around 350 million tonnes of plastic waste each year, and an estimated 1 to 2 million tonnes of plastic enters the oceans annually. Rich countries tend to produce the most plastic waste per person, but the mismanagement of waste is a more significant factor in plastic pollution.
Despite efforts to reduce, reuse, and recycle plastic, experts predict that plastic production will increase by 40% in the next ten years. Fossil fuel companies have invested heavily in building plastic production facilities, and this will lead to more plastic production in the next decade. Asia is the largest plastic producer in the world, with China alone accounting for 32% of global production in 2022. North America ranks second, with a 17% share in 2022.
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Plastic waste management is poor
Plastic waste management is a pressing global issue. The problem is twofold: the sheer volume of plastic waste generated and the challenges of effectively managing and disposing of this waste.
Firstly, the magnitude of the problem is staggering. Each year, approximately 400 million tonnes of plastic are produced, with 40% of this being single-use plastic designed for disposal after one use. This waste enters the environment through various pathways, including landfills, open burning, dumping, and leakage into waterways. More than eight million tonnes of plastic end up in the world's oceans annually, threatening marine life and ecosystems.
Secondly, plastic waste management is often inadequate. The challenges are multifaceted and vary across regions. In some cases, there is a lack of proper collection infrastructure and supporting arrangements, resulting in plastic littering the environment. Mismanagement after collection is also an issue, with practices such as open burning and poorly managed dumping sites contributing to environmental degradation.
The consequences of poor plastic waste management are severe. Plastic pollution has far-reaching impacts on the environment, altering habitats and natural processes. It affects the ability of ecosystems to adapt to climate change and has direct consequences for millions of people's livelihoods, food production, and social well-being. The indestructible nature of plastic exacerbates the problem, as it does not rot or fully biodegrade, persisting in the environment for hundreds of years and fragmenting into microplastics that infiltrate ecosystems and the food chain.
To address these issues, comprehensive solutions are required. This includes improving waste collection systems, enforcing stricter regulations on plastic disposal, promoting recycling and alternative waste treatment methods, and reducing the reliance on single-use plastics. By tackling these challenges, we can move towards more sustainable plastic waste management practices and mitigate the harmful impacts of plastic pollution on our planet.
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Frequently asked questions
It is estimated that more than eight million tonnes of plastic enter the world's oceans each year. This is the equivalent of five garbage bags of trash for every foot of coastline around the world. By 2050, the amount of plastic in the ocean is predicted to outweigh the amount of fish.
Plastic is harmful to the environment because it is not biodegradable. It can take hundreds of years to break down, and even then, it only breaks up into smaller pieces known as microplastics, which can be ingested by marine animals and birds, causing them to become trapped or starve. Microplastics have also been found in municipal drinking water systems, the air, and even in human blood, lungs, and faeces.
To reduce plastic pollution, waste management strategies must be improved, especially in poorer countries where most ocean plastics originate. Recycling practices should also be encouraged, and single-use plastics should be banned or limited.
