Chloe Zhang
Plastic is everywhere, and it's shocking how much we're all paying for it. Humans have created around 11 billion metric tons of plastic to date, and it's a rapidly growing segment of municipal solid waste. While most plastics are theoretically recyclable, only a small percentage is recycled due to the complex nature of the process. The recycling rate for plastic varies across the world, with the US recycling only around 5% of its plastic waste in 2021 and the UK recycling 29.1% of PET bottles in 2018. Overall, the US recycled 8.7% of its plastic waste in 2018, with landfills receiving 27 million tons of plastic that year.
| Characteristics | Values |
|---|---|
| Percentage of annual plastic waste recycled | 9% |
| Percentage of plastic packaging that ends up in landfills | 85% |
| Percentage of plastic waste recycled in the US in 2021 | 5% |
| Percentage of plastic waste recycled in the US in 2018 | 8.7% |
| Percentage of plastic waste sent to landfills in the US in 2018 | 18.5% |
| Percentage of PET bottles recycled in the US in 2018 | 29.1% |
| Percentage of PET bottles recycled in the UK | 22% |
| Percentage of PET bottles recycled in Maine and Oregon | 80% |
| Percentage of PET bottles recycled in some Southern US states | <10% |
| Percentage of PET bottles recycled in the US nationally | 30% |
| Percentage of PS containers and packaging recycled in the US in 2018 | 3.6% |
| Percentage of PS containers and packaging recycled in the UK | 1-2% |
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What You'll Learn
Plastic recycling rates vary across the world
OECD countries in the European Union, India, and China have been leaders in increasing plastic recycling rates over the last two decades. By 2019, these countries achieved recycling rates of 12–13%. Non-OECD Asian countries and Latin America have also made progress, albeit at a slower pace.
In contrast, the United States, the world's biggest plastic polluter, lags in its recycling efforts. According to Greenpeace, only around 5% of over 50 million tons of plastic waste from US households was recycled in 2021. The Middle East and North Africa region have also seen sluggish advancements, with the US reaching a mere 4.5% recycling rate by 2019, according to OECD data.
The recycling rates vary due to different regional strategies and capacities for plastic waste management. For example, flexible packaging, such as lightweight packets for snacks and food, are convenient but incredibly difficult to recycle due to contamination and complex composition. Additionally, most plastics are incompatible, making sorting a costly and inefficient process. Only PET (#1) and HDPE (#2) are widely recycled.
Some regions have taken steps to reduce plastic waste. The EU has banned 10 types of single-use plastic products, aiming for all disposable plastics in the EU to be reusable or recyclable by 2030. More than 30 African countries have banned or partially banned lightweight plastic bags. However, these bans have limited the amount of feed material for recycling, raising the price of recycled materials.
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Plastic recycling is not economical
Plastic recycling is not a viable economic option due to several reasons. Firstly, the variety of plastic types poses a significant challenge. There are thousands of different types of plastic, and they cannot be melted down together. Sorting through the various types of plastic to separate them for recycling is a costly and time-intensive process. The value of the raw material obtained from harder plastics is often lower than the cost of recycling them, making it economically unviable.
Additionally, the recycling process itself is complex and expensive. Mechanical recycling, the most common method, involves grinding, melting, and reforming plastic. However, this process requires proper sorting and cleaning of materials, which can be time-consuming and expensive. Furthermore, many types of plastic cannot be recycled multiple times without acquiring defects and contaminants, reducing their recyclability and market value.
The market for recycled plastics is also limited. Recycled plastic resin faces competition from cheaper virgin plastic, which is produced from subsidized fossil fuels. This drives down the demand for recycled plastic and makes it less economically attractive. The low recycling rates globally further contribute to the high price of recycled materials, creating a cycle that discourages the adoption of recycled plastic.
Moreover, the plastic industry has been accused of greenwashing, promoting the idea that plastic can be recycled to improve its public image. Despite knowing the limitations of plastic recycling, the industry has spent millions encouraging people to recycle, creating the perception that recycling is a viable solution to the plastic pollution crisis. This has led to confusion among consumers, who believe their recycled plastic is being properly recycled when, in reality, it often ends up in landfills or the environment.
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Plastic recycling rates by product
Plastic recycling rates vary depending on the product and region. Overall, the recycling rate for plastic is relatively low, with reports indicating that only 5-9% of plastic waste is recycled globally. In the United States, the recycling rate for plastic was even lower, at just 5-6% in 2021, despite public efforts like America Recycles Day. This is in part due to the challenges associated with collecting, sorting, and reprocessing plastic waste, as well as the dominance of single-use plastics in consumer goods.
When considering plastic recycling rates by product, certain types of plastic containers have higher recycling rates than others. For example, the recycling rate for PET (polyethylene terephthalate) bottles and jars was 29.1% in 2018, while the rate for HDPE (high-density polyethylene) natural bottles was slightly higher at 29.3% in the same year. These types of plastics are commonly used in beverage bottles, milk and water bottles, and other containers.
However, it is important to note that the recycling rates for other plastic products may be lower. Durable goods, such as appliances, furniture, and casings of lead-acid batteries, may have lower recycling rates due to the complexity of disassembling and separating the plastic components for recycling. Additionally, single-use plastics, such as plastic bags, wraps, and packaging, are often difficult to recycle and contribute significantly to plastic waste.
The low recycling rates for plastic have led to a growing movement to reduce plastic production and increase the use of reusable and refillable alternatives. Organizations like Greenpeace and Beyond Plastics advocate for a significant decrease in plastic production and encourage the adoption of standardized reusable packaging. California's attorney general has also taken steps to address the issue by investigating the role of Big Oil in perpetuating the myth that recycling can solve the plastic crisis.
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$31.68
Plastic recycling is time-intensive and expensive
Plastic recycling is a complex and challenging process that requires significant time and resources. While the public has been encouraged to recycle plastic products, the reality is that most plastic ends up in landfills or incinerators. According to Greenpeace, only 9% of annual plastic waste is recycled globally, and in the United States, this figure is even lower, with only 5% of plastic waste recycled in 2021.
One of the primary reasons plastic recycling is time-intensive and expensive is the sorting process. Plastic comes in various types, including PET (Polyethylene terephthalate) and HDPE (high-density Polyethylene), which have different recycling potential. However, most plastic packaging is produced from seven grades of plastic that are largely incompatible with each other, making sorting a complex and costly endeavour. Mixed container recycling bins often contain contaminants that render the plastic unrecyclable. The process of properly sorting and cleaning materials can be time-consuming and expensive, impacting the overall cost of recycling.
The recycling process itself is also challenging and costly. Mechanical recycling, which involves grinding, melting, and reforming plastic, requires significant energy and infrastructure investment. Additionally, many types of plastic can only be recycled a limited number of times before acquiring defects and contaminants. This means that even recycled plastic goods will eventually end up in landfills or incinerators, reducing the overall value of recycled plastic.
The market dynamics of recycled plastic further contribute to the expense of plastic recycling. The production of new "virgin" plastic is often cheaper than using recycled material due to subsidized fossil fuels. As a result, recycled plastic faces competition from cheaper prime materials, limiting the market demand and driving up the cost of recycling. This issue is particularly prominent in the global scrap market, where the low value of scrap plastic and high recycling costs make it more expensive to recycle plastic than to manufacture new virgin plastic.
Furthermore, the geographical aspects of plastic recycling can increase costs. Longer transport distances between storage and recycling facilities drive up contract prices, impacting the overall cost of the recycling process. This is especially true for isolated island locations, where the cost of recycling can be significantly higher.
Despite the challenges, there is hope for improving plastic recycling rates and reducing costs. Growing global demand for high-quality recyclable materials and advancements in technology and infrastructure can drive down recycling prices. Additionally, local policies and initiatives, such as "bottle bills" that incentivize customers to return plastic bottles, have proven successful in certain states. By reframing the question of cost-effectiveness beyond financial profit and considering the environmental and social benefits, the case for investing in plastic recycling becomes more compelling.
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Plastic recycling is limited by the number of times plastic can be recycled
Plastic is everywhere, and it is shockingly profitable. However, only about 9% of annual plastic waste is recycled. This means that the remaining 91% of plastic waste ends up in landfills or the oceans, severely impacting marine life.
The limited recycling of plastic can be attributed to several factors, one of which is the number of times plastic can be recycled. Most plastic can be recycled only once, and less than 10% of plastic is recycled more than once. This is because, with each recycling round, the material acquires defects and contaminants, making it difficult to recycle again. For example, low-density polyethylene (LDPE) soft plastic, often found in grocery bags and cling wrap, can only be recycled once due to quality degradation.
Some types of plastic can be recycled multiple times, but this depends on the specific type of plastic and its post-consumer use. Polyethylene terephthalate (PET), commonly used for drink bottles, has a recycling rate of 29.1% in the US and is considered highly recyclable. When PET is recycled into a non-food container, it may endure a second or third round of recycling. However, if it is spun into polyester fiber, it becomes more challenging to recycle again due to the lack of large-scale post-consumer textile recycling. High-density polyethylene (HDPE), used for beverage bottles and personal hygiene products, can also be recycled multiple times and is slightly more frequently recycled than PET (29.3% vs 29.1%). An experiment found that HDPE could be recycled up to 10 times under highly controlled conditions.
Another factor contributing to the limited recycling of plastic is the cost. Recycling plastic can be time-intensive and expensive, especially when it comes to properly sorting and cleaning materials. The market for recycled plastics is limited, and the demand for raw recycled plastic is slowing due to rising transport costs and a slowdown in the construction sector. Additionally, the price of virgin plastic, which is tied to fluctuating oil and gas prices, is often cheaper than recycled material, making plastic recycling less economical.
To address these challenges, some countries plan to impose fees on plastic products that use non-recycled materials, providing a financial incentive to move away from virgin resins. Additionally, new universal plastic regulations are being negotiated as part of a global plastics treaty to streamline the production, use, and reuse of plastic using a circular economy model. While these initiatives provide hope, it is essential to recognize that the current recycling system is inadequate in addressing the mounting plastic crisis.
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Frequently asked questions
9% of annual plastic waste was recycled as of 2023.
85% of plastic packaging ends up in landfills.
Only around 5% of the 50 million tons of plastic waste produced by US households in 2021 was recycled.
The national average for PET bottle recycling in the US is 30%.
Up to 80% of PET bottles are recycled in Maine and Oregon, thanks to their investment in recycling programs.
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