
Plastic waste is a pressing global issue, and Spain is a significant contributor to the problem. Ranking as the fourth-largest producer of plastic packaging waste in the EU, Spain's plastic waste output stood at almost 1.8 million metric tons in 2021. While public awareness of the issue is high, and the Spanish government has implemented measures to tackle plastic waste, the country's recycling rate for plastic packaging waste has dropped in recent years. Southern Spain's Almería province has been nicknamed the Sea of Plastic due to the vast expanse of plastic greenhouses that cover the region, totalling an estimated 370 square kilometres. These greenhouses have transformed the local economy, contributing billions of euros through the production of fruits and vegetables. However, plastic waste dumping and illegal disposal are also prevalent in the region, leading to environmental degradation and the release of microplastics into the soil and water systems.
| Characteristics | Values |
|---|---|
| Name | Sea of Plastic, Mar de Plástico |
| Location | Southeastern Spain, Almería province |
| Area | 370 sq km, greater than the country of Malta |
| Number of Greenhouses | Thousands |
| Produce | Tomatoes, peppers, zucchini, cucumbers, eggplants, melons, watermelon, lettuce |
| Produce (Agricultural) | Fruits and vegetables |
| Produce (Annual) | 3.5 million tons |
| Produce (Annual) Value | 2.79 billion euros |
| Plastic Waste | 15% of agricultural plastic waste is not recycled, ends up in the environment |
| Plastic Waste (Water) | Alboran Sea, Gulf of Alicante, vicinity of Barcelona |
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What You'll Learn

Plastic waste in Spain
Plastic waste is a significant issue in Spain, which ranks as the fourth-largest producer of plastic packaging waste in the European Union. In 2021, Spain's output of plastic packaging waste stood at almost 1.8 million metric tons, with only a fraction of this being recycled. The recycling rate of plastic packaging waste in Spain has decreased in recent years, dropping below 50% in 2020 and 2021 due to the coronavirus pandemic. Overall, Spain's waste management system lags behind other European countries, with only 43.3% of waste recycled or reused, compared to an EU average of 52%.
The province of Almería in southeastern Spain has been dubbed the "Sea of Plastic" due to the vast expanse of plastic greenhouses that cover the region. These greenhouses, totalling an estimated 370 square kilometres, are a result of an agricultural boom that began in the 1960s, transforming the once sparsely populated, semi-arid scrubland into a thriving hub of fruit and vegetable production. While the greenhouses have brought economic prosperity to the region, they have also contributed to the plastic waste problem in Spain.
Illegal dumping of plastic waste is a prevalent issue in Almería, with black-market services offering to dispose of plastic waste at low prices, only to dump it elsewhere. This has led to the formation of volunteer initiatives calling on the authorities to clean up these illegal dumping sites. The prolonged exposure of plastic waste to the environment increases the risk of microplastics being released into the soil and nearby bodies of water.
Recognising the urgency of the plastic waste crisis, the Spanish government has implemented a series of measures to combat plastic pollution. The 2022 "Law of Residues and Contaminated Soils" introduced a plastic tax on non-reusable plastic packaging and set ambitious waste reduction targets. These targets include a 70% reduction in single-use plastic use by 2030 and an increase in the recycled content of PET bottles. Additionally, Spain is working towards adopting the European Union's revised Waste Package and Single-Use Plastics (SUP) Directives, which aim for a 90% separate collection rate and 30% recycled content in plastic bottles by 2030.
While Spain grapples with the challenges of plastic waste management, there are glimmers of hope in citizen action and official initiatives. The RECICLAND project, for example, is a comprehensive program that promotes sustainable plastic and food waste management practices through efficient recycling and composting methods. As public awareness of the plastic waste crisis grows, Spain is presented with an opportunity to set ambitious targets and implement effective solutions to address this pressing environmental concern.
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Plastic pollution in Almería
Almería, a province in southeastern Spain, is home to the world's largest concentration of greenhouses, covering an estimated area of 370 square kilometres. This expanse of plastic structures, known as the "Sea of Plastic" or "Mar de Plástico", has earned Almería the reputation of being a "plastic city". The region's agricultural boom, which began around 50 years ago, transformed what was once sparsely populated, semi-arid scrubland into a thriving hub of fruit and vegetable production.
The economic success of intensive agriculture in Almería has brought both benefits and challenges. On the one hand, it has contributed significantly to the local economy, with the region's produce being exported to various European Union countries and the United Kingdom. Germany, for instance, imported nearly 950,000 tons of produce from Almería during one recent campaign.
However, the extensive use of plastic in the form of greenhouses has led to significant environmental concerns, particularly regarding plastic pollution. While farmers are legally obligated to dispose of plastic through official channels, the economic incentives of black-market disposal methods have resulted in illegal dumping. These piles of plastic waste are visible on Google Maps and pose a risk of releasing microplastics into the soil and nearby bodies of water.
To address this issue, volunteer initiatives and official organisations are working to improve plastic recycling practices in the province. One such example is the RECICLAND project, undertaken by the Andalusian Institute of Agricultural and Fisheries Research and Training (IFAPA). This project aims to promote more sustainable plastic and food waste management through efficient recycling and composting techniques.
Additionally, there is emerging research suggesting that the "Sea of Plastic" may be having an unexpected impact on the local climate. Scientists from the University of Almería have hypothesised that the bright white plastic surfaces of the greenhouses could be reflecting sunlight back into space, leading to a cooling effect on the region. While limited in scope, this research adds another layer to the complex environmental implications associated with the plastic city of Almería.
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The 'Sea of Plastic'
The "Sea of Plastic", or "Mar de Plástico" in Spanish, refers to the vast expanse of plastic greenhouses that cover the landscape in the province of Almería, in southeastern Spain. This area is known for its agricultural prowess, particularly in the production of fruits and vegetables, which has brought significant economic prosperity to the region. However, the proliferation of plastic greenhouses has also raised concerns about plastic waste and its environmental impact.
The "Sea of Plastic" got its name from the dense concentration of plastic structures that dot the Mediterranean plains of Almería. Covering an estimated 370 square kilometres, the greenhouses in this region form the world's largest array, surpassing the size of the country of Malta. This expanse of plastic can be seen from space, appearing as a dazzling white patchwork. The agricultural boom in Almería, which began around 50 years ago, transformed what was once sparsely populated, semi-arid scrubland into a hub of fruit and vegetable production for Europe.
The greenhouses in the "Sea of Plastic" are used to cultivate a variety of crops, including tomatoes, peppers, zucchini, cucumbers, eggplants, melons, watermelon, and lettuce. The favourable climate and accessible groundwater in the region have contributed to its success in agriculture. However, the intensive use of plastic in this industry has led to significant waste management challenges. While farmers are legally required to dispose of plastic waste through official channels, illegal dumping and black-market disposal services persist, leading to unsightly piles of garbage that can be seen on Google Maps.
The environmental impact of the "Sea of Plastic" is complex. On the one hand, the bright white surfaces of the greenhouses may be reflecting sunlight back into space, contributing to a slight cooling effect on the local climate. On the other hand, the improper disposal of plastic waste allows microplastics to seep into the soil and water systems. The sea along the coast of Almería, for example, has been found to contain three times the average amount of microplastics. To address these concerns, initiatives like the RECICLAND project have emerged, aiming to promote more sustainable plastic and food waste management practices in the region.
While the "Sea of Plastic" has brought economic benefits to Almería, the region continues to grapple with the environmental consequences of intensive agriculture and the challenges of effective plastic waste management.
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Plastic recycling in Spain
While Spain does not have a "plastic city" per se, the country has made notable progress in plastic recycling in recent years. However, there is still room for improvement to meet European Union (EU) standards. According to reports, Spain has already surpassed the EU's 50% recycling rate target for packaging by 2025. The National Association of Plastics Recyclers (Anarpla) notes that various industries in Spain have a recycling capacity of around half a million tons per year, accounting for over 40% of the plastic they use.
Despite these positive developments, Spain's plastic recycling rates lag behind the EU average. In the EU, 52% of waste is recycled, reused, or transformed into energy, compared to 43.3% in Spain. Of the plastic waste generated in Spain, only 14% is collected for recycling, with 8% used for cascade recycling and 2% for new plastic packaging. This discrepancy has prompted calls for the implementation of a deposit return system (DRS) for cans, bottles, and cartons to improve recycling rates.
The agricultural sector in Spain, particularly in the province of Almería, has been associated with extensive plastic usage. This region, known as the "Sea of Plastic" or "Mar de Plástico," has witnessed a transformation over the last five decades, with plastic greenhouses covering nearly 370 square kilometres. While these greenhouses have driven economic growth and agricultural productivity, they have also raised concerns about plastic waste management.
To address these challenges, initiatives like the RECICLAND project at the Andalusian Institute of Agricultural and Fisheries Research and Training (IFAPA) have emerged. This program promotes sustainable plastic and food waste management practices, including efficient recycling and composting methods. Additionally, companies like REPETCO have developed environmentally friendly systems for multilayer PET/PE food packaging, aiming to boost the secondary market for recycled plastic in Spain.
Overall, Spain has demonstrated a commitment to improving plastic recycling through public-private collaborations, technological advancements, and the development of secondary markets for recycled materials. While progress has been made, there remains a need to address data inconsistencies and manipulate recycling results to achieve greater sustainability in waste management.
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The environmental impact of plastic
Plastic pollution has become ubiquitous in natural and built environments, raising concerns about potential harm to humans and nature. Research shows that plastic pollution is persistent and may take between 100 to 1,000 years or more to decompose, depending on environmental conditions.
Plastic pollution poses a threat to the marine environment, putting marine species at higher risk of ingesting plastic, suffocating, or becoming entangled in plastic waste. Over 1,500 species in marine and terrestrial environments are known to ingest plastics. Microplastics, plastic particles ranging in size from 5mm to 1 nanometre, have been found in every ecosystem on the planet, from the Antarctic tundra to tropical coral reefs. They have also been found in drinking water and in over 100 marine species, many of which are consumed by humans. When plastics break down, they release microplastics into the soil and bodies of water.
The production and conversion of fossil fuels into new plastic products are major contributors to global greenhouse gas emissions. The Organisation for Economic Co-operation and Development (OECD) estimated that in 2019, plastic products were responsible for 3.4% of global greenhouse gas emissions throughout their life cycles, with 90% of these emissions coming from the production and conversion of fossil fuels into new plastic products. The OECD also reports that, without changes in human behaviour, greenhouse gas emissions associated with the life cycle of plastic products are expected to double by 2060. The World Economic Forum projects that without intervention, the global plastics industry will account for 20% of total oil consumption and up to 15% of global carbon emissions by 2050.
Single-use plastics, designed to be disposed of right after use, are a significant contributor to the plastic pollution crisis. They are commonly used for packaging and serviceware, such as bags, bottles, wrappers, and straws. Large producers of single-use plastics, such as Coca-Cola, Nestlé, and Unilever, have been identified as major sources of plastic pollution along coastlines. While recycling is an important solution, it is challenging to recycle single-use plastics due to their small size, and only 5 to 9% of all plastic is recycled.
In Southern Spain, the province of Almería has been nicknamed the "Sea of Plastic" due to the vast expanse of plastic greenhouses that cover the region. These greenhouses have transformed the local economy and may even have a cooling effect on the local climate. However, plastic waste is also an issue in Almería, with some farmers using illegal dumping sites or black-market disposal services, leading to piles of plastic waste that can be seen on Google Maps. While initiatives like the RECICLAND project are working to improve plastic recycling in the province, the environmental impact of plastic waste in Almería highlights the broader challenges associated with plastic pollution.
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Frequently asked questions
Spain does not have a city made of plastic. However, the province of Almería in southeastern Spain has been nicknamed the "Sea of Plastic" due to the vast expanse of plastic greenhouses that cover the region. These greenhouses are used for agriculture and have made Almería a powerhouse in fruit and vegetable production.
The "Sea of Plastic" covers an estimated area of 370 square kilometers, which is larger than the country of Malta. It is the largest concentration of greenhouses in the world and can be seen from space.
The environmental impact of the "Sea of Plastic" is a complex issue. On the one hand, the bright white plastic may be reflecting sunlight and contributing to a cooling effect in the region. On the other hand, plastic waste is a significant problem in Spain, and the agricultural industry has been criticized for its contribution to plastic pollution. Illegal dumping and improper disposal of plastic waste have led to the release of microplastics into the soil and water systems. However, there are also efforts to improve plastic recycling and waste management in the region, such as the RECICLAND project.



























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