Sofia Martinez
Plastic and big agriculture are both detrimental to the environment, but in different ways. Plastic is a significant issue in agriculture, with farmers using it for everything from seedling trays and irrigation tubing to pesticide containers and livestock feed bags. The widespread use of plastic in agriculture has led to the accumulation of large quantities in soils, and the difficulty of disposing of plastic waste correctly means that agricultural supply chains use an estimated 12.5 million tons of plastic products every year. Plastic poses a serious risk to human and ecosystem health, causing harm through physical, chemical, and biological effects. On the other hand, big agriculture contributes to environmental issues such as water pollution, soil degradation, and greenhouse gas emissions. While plastic use is not the only environmental issue in agriculture, it is something that farmers can address without drastically changing their practices. Sustainable practices like compostable materials, reusable tools, and plant-based plastics are helping to reduce plastic waste in agriculture.
| Characteristics | Values |
|---|---|
| Plastic in agriculture | 12.5 million tons of plastic products every year |
| Plastic in food packaging | 37.3 million tons every year |
| Largest users of plastic in agriculture | Asian countries |
| Plastic alternatives in agriculture | Compostable materials, reusable tools, plant-based plastics, bio-based plastics, mulching films made from plant-based materials, polycarbonate |
| Plastic waste management strategies | Refuse, Redesign, Reduce, Reuse, Recycle and Recover, biodegradables, banning non-biodegradable plastics, recycling, switching to refillable containers and reusable bags |
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What You'll Learn
Plastic's benefits and drawbacks in agriculture
Plastic is an integral part of modern agriculture, used for everything from seedling trays, irrigation tubing, and pesticide containers to silage wrap, feed bags, and mulch films. The use of plastics in agriculture has been associated with increased crop production, enhanced food quality, and reduced water use. In 2019, agricultural value chains used 12.5 million tonnes of plastic products in plant and animal production and 37.3 million tonnes in food packaging.
However, the widespread use of plastics in agriculture has also led to significant environmental concerns, threatening soil health, water quality, and human well-being. Plastic pollution in agriculture is a critical ecological issue, with plastics accumulating in soils and causing pollution when they are damaged, degraded, or discarded. The burning of plastic farm waste, a common practice globally, releases harmful pollutants known as dioxins into the air.
To address these issues, there have been efforts to reduce, reuse, and recycle plastics in agriculture. Biodegradable alternatives, such as bio-based plastics and non-toxic additives, are being explored to improve sustainability and reduce the environmental footprint of agricultural plastics. Some farmers are switching to refillable containers, reusable bags, and biodegradable silage wrap. Initiatives like the UK Farm Plastic Responsibility Scheme (UKFPRS) and Agriculture, Plastic & Environment UK (Ape UK) aim to improve plastic recycling in the agricultural sector.
While plastic use in agriculture provides short-term benefits, it is important to consider long-term sustainability. The Food and Agriculture Organization of the United Nations (FAO) is working to support countries in developing legally binding treaties to end plastic pollution and promote the sustainable use and management of plastics in agriculture.
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$9.75
Plastic's environmental impact
Plastic is a versatile and low-cost material that has become integral to many industries, including agriculture. However, its widespread use has led to a significant environmental crisis. Plastic pollution is ubiquitous in natural and built environments, from the oceans and lakes to the soil and food chain. Its durability means that discarded items can take anywhere from 100 to 1,000 years or more to decompose, depending on environmental conditions.
The environmental impacts of plastic pollution are far-reaching. Plastic waste can fragment into microplastics, which are found in every ecosystem on the planet, from the Antarctic tundra to tropical coral reefs. These microplastics have been ingested by over 1,500 species in marine and terrestrial environments, causing unknown health effects. Plastic pollution also poses physical, chemical, and biological risks to ecosystems and human health. Physical risks include entanglement or entrapment, while chemical risks involve the release of toxic additives or combustion products, and biological risks include root impediment and tissue damage.
The agricultural sector is a significant contributor to plastic pollution. Plastic is used in various applications, including mulching, irrigation, fishing gear, greenhouse films, and food packaging. In 2019, agricultural value chains used 12.5 million tonnes of plastic products in plant and animal production and 37.3 million tonnes in food packaging. The majority of these plastics are single-use and have a short lifespan, with most becoming waste within a year.
To address the environmental impact of plastics in agriculture, several solutions are being explored. These include switching to biodegradable alternatives, such as bio-based plastics or non-edible banana residues, and adopting more sustainable agricultural practices. For example, using cover crops and plant residues like straw instead of plastic mulches can help reduce plastic waste. Additionally, initiatives like the Global Environment Facility's "Financing Agrochemical Reduction and Management" (GEF FARM) project support countries in improving the management of plastics in agriculture.
While plastic pollution is a pressing issue, it is essential to note that it does not exist in isolation. The environmental, social, economic, and health risks associated with plastics must be assessed alongside other environmental stressors, such as climate change and ecosystem degradation. Addressing plastic pollution requires systemic transformation towards a circular economy, where plastics are responsibly used, recycled, or replaced with biodegradable alternatives.
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Plastic pollution solutions
Plastic pollution is a pressing issue that threatens soil health, water quality, and human well-being. While recycling is often touted as a solution, it is not always easily available, and the variety of polymers and additives in plastics makes sorting and recycling challenging. Here are some possible solutions to address plastic pollution:
Policy and Regulatory Changes
Governments and organizations can play a crucial role in reducing plastic pollution by implementing and enforcing strong policies and regulations. For example, the Food and Agriculture Organization of the United Nations (FAO) is supporting countries in developing a legally binding treaty to end plastic pollution and creating a Voluntary Code of Conduct for the sustainable use of plastics in agriculture. Additionally, initiatives like the GEF FARM project and the GloLitter Partnerships programme are assisting countries in reducing agrochemicals and marine litter.
Individual Behaviour Changes
Individuals can make a significant impact by embracing plastic-free principles in their daily lives. This includes using reusable bottles, opting for products with natural exfoliants instead of microplastics, and supporting farmers who use biodegradable alternatives, such as glass bottles or refillable containers. Educating oneself about plastic pollution and advocating for systemic change is also essential.
Sustainable Alternatives
Promoting sustainable and circular bioeconomies is crucial. This involves using renewable biological resources, such as bio-based plastics made from non-edible banana residues or other biological sources. These alternatives can have a lower environmental and carbon footprint than petroleum-based plastics. Additionally, adopting conservation agriculture practices, such as using cover crops and plant residues instead of plastic mulches, can reduce plastic use in agriculture.
Improved Waste Management
Better waste management practices can help keep plastic out of the environment. This includes proper disposal and recycling when possible. Initiatives like the UK Farm Plastic Responsibility Scheme (UKFPRS) aim to improve recycling collection for agricultural plastics. Charging levies on plastics purchased by farmers can also encourage a shift towards biodegradables and reduce plastic use.
Business Practice Improvements
Businesses should be held accountable for their plastic waste and greenwashing practices. Solutions must address all stages of plastic's existence, from production to use and disposal, ensuring that practices are non-toxic, just, equitable, and accessible to all.
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Plastic alternatives
The search results show that there is a wide range of alternatives to plastic, with a particular focus on biodegradable and compostable materials. Here are some of the most commonly mentioned alternatives:
Biodegradable Materials
Biodegradable materials are those that can be broken down by microorganisms, water, or other natural processes. Some examples of biodegradable alternatives to plastic include:
- Algae-based packaging: This type of packaging is made from seaweed and other algae sources. It is biodegradable and has been used to create products such as edible drinking straws, condiment packets, cutlery, and plastic wrap.
- PHA (Polyhydroxyalkanoates): PHA is a biodegradable plastic produced by microorganisms through bacterial fermentation of plant sources. It can be used to create eco-friendly cutlery, straws, and toothbrushes.
- Bioplastics: Bioplastics are made from renewable sources such as plants, starches, and sugars. They are compostable and biodegradable, but may not be recyclable.
- Paper and Cardboard: These materials are recyclable and biodegradable, but they require more energy to produce and transport than plastic. However, with proper use and disposal, they can be a more sustainable alternative.
Reusable Materials
Reusable materials are those that can be used multiple times, reducing the need for single-use plastics. Some examples include:
- Reusable Cups and Containers: Instead of using plastic cups and containers, people can opt for reusable alternatives made from materials like glass, stainless steel, or bamboo.
- Reusable Cutlery: Carrying a travel cutlery set made from bamboo or other reusable materials can help reduce the use of plastic cutlery.
- Reusable Straws: Stainless steel, bamboo, and silicone straws are reusable alternatives to plastic straws.
- Natural Fibers: Materials such as coconut fiber, hemp, husk, cotton, and jute can be used as eco-friendly packaging and shipping materials.
Other Alternatives
There are also other alternatives that do not fall strictly into the biodegradable or reusable categories:
- Silicone: Silicone shares many characteristics with plastic but is considered safer and more environmentally friendly. It is strong, flexible, and does not leach toxic residues or microplastics. However, not all recycling facilities can accept silicone products.
- Plant Cellulose Spray: Scientists have developed a biodegradable and antimicrobial spray-on coating made from plant cellulose. It can be used to coat produce and other food items, eliminating the need for plastic packaging.
While these alternatives offer promising solutions, it is important to consider the end-of-life impacts, extraction of raw materials, water and land use, and the release of hazardous chemicals associated with each alternative. Simply replacing disposable plastic with another material may not be sufficient to reduce the burden on the environment. A combination of reusable packaging, biodegradable materials, and conscious consumption habits can contribute to a more sustainable future.
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Plastic's future in agriculture
Plastic is an integral component of agricultural production. It is used for silage wrap, irrigation tubing, pesticide containers, livestock feed bags, mulching, fishing gear, greenhouse films, and much more. However, the widespread use of plastic in agriculture has led to a significant environmental problem.
A report by the Food and Agriculture Organization of the United Nations (FAO) estimated that in 2019, agricultural supply chains used 12.5 million tons of plastic products in plant and animal production and 37.3 million tons in food packaging. Another report by the Department for Environment, Food and Rural Affairs (Defra) found that 45,000 tonnes of agricultural plastics are produced every year in the UK alone, with plastic sheets spread over the soil being the biggest contributor, making up over 40% of the market.
The issue with agricultural plastics is that they often end up in the environment when they are damaged, degraded, or discarded, causing widespread harm to marine and terrestrial ecosystems. The variety of polymers and additives blended into plastics makes sorting and recycling challenging, and as a result, much of this plastic waste is not disposed of properly. This waste can lead to physical, chemical, and biological effects on the environment, such as entanglement or entrapment, the release of additives or combustion products, and root impediment or tissue/cellular damage.
To address this problem, there is a growing movement towards more sustainable practices in agriculture. This includes the use of compostable materials, reusable tools, and plant-based plastics to reduce plastic waste. For example, biodegradable mulch films made from plant-based materials are now being used instead of traditional plastic, providing the same benefits of moisture retention and weed control without the environmental impact. Other innovations include the use of recycled plastic for irrigation solutions and compostable planting materials, such as seedling trays and plant plugs made from coconut coir, peat, or wood fiber.
In addition to these alternatives, some are calling for a reduction in the use of plastic in agriculture altogether. The United Nations Food and Agriculture Organization recommends deploying a 6R model to better manage agricultural plastics: Refuse, Redesign, Reduce, Reuse, Recycle, and Recover. This could involve removing plastics and using cover crops and plant residues such as straw instead of plastic mulches, or switching to bio-based plastics, which have a lower environmental and carbon footprint than their petroleum-based equivalents. The FAO is also supporting countries in developing a legally binding treaty to end plastic pollution and improve the sustainable use of plastics in agriculture.
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Frequently asked questions
Agricultural supply chains use 12.5 million tons of plastic products every year, with another 37.3 million tons used in food packaging. The use of plastic in agriculture is so pervasive that there is more plastic in agricultural land than in the oceans.
Plastics cause widespread harm to marine and terrestrial ecosystems in three main ways: through physical effects (such as entanglement or entrapment), chemical effects (such as the release of additives or combustion products), and biological effects (such as root impediment or tissue/cellular damage).
Some solutions include switching to biodegradable plastics, compostable materials, and reusable tools, and adopting more sustainable agricultural practices such as conservation agriculture and the use of cover crops instead of plastic mulching films.
Some farmers are switching to biodegradable silage wrap, refillable chemical containers, and bulk feed in reusable bags. Others are using compostable seedling trays and plant plugs that break down into organic matter after use, enriching the soil in the process.
