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The chemical sector is the fourth largest industry in the European Union (EU) and the second largest chemical producer globally. However, its global share in chemicals sales has declined from 25% two decades ago to around 14% now. The sector, which accounts for 22% of the EU industry's energy demands, faces significant challenges in mitigating climate change, reducing pollution and toxicity, and improving circularity. Biomass, a promising renewable feedstock, currently represents only 3% of the sector's feedstocks. This review explores the opportunities and challenges for a bio‐based chemical sector in the EU, particularly plastics, to improve circularity and contribute to climate neutrality, reduction of pollution and toxicity. It provides an overview of current fossil‐based feedstocks, production processes, country‐specific trends, bio‐based production, and sustainability initiatives. Exploring new feedstocks such as lignin, organic residues, and algae can increase biomass availability toward a circular bioeconomy. Integrating chemicals and plastics production into commercial pulp and power factories, biofuel plants, and the sustainable hydrogen economy could boost the sector. Hydrogen is crucial for reducing biomass's oxygen content. These can ultimately contribute to reduce climate change impacts. Designing novel chemicals and plastics to accommodate biomass's higher oxygen content, reduce toxicity, and enhance biodegradability is essential. However, plastic waste mismanagement cannot be solved by merely replacing fossil feedstocks with biomass. Sustainability initiatives can strengthen and develop a circular bio‐based chemical sector, but better management of bio‐based plastic waste and transparent labeling of bio‐based products are needed. This calls for collaborative efforts among citizens, academia, policymakers, and industry.This article is categorized under: Climate and Environment > Circular Economy Climate and Environment > Net Zero Planning and Decarbonization Emerging Technologies > Materials
The chemical sector is the fourth largest industry in the European Union (EU) and the second largest chemical producer globally. However, its global share in chemicals sales has declined from 25% two decades ago to around 14% now. The sector, which accounts for 22% of the EU industry's energy demands, faces significant challenges in mitigating climate change, reducing pollution and toxicity, and improving circularity. Biomass, a promising renewable feedstock, currently represents only 3% of the sector's feedstocks. This review explores the opportunities and challenges for a bio‐based chemical sector in the EU, particularly plastics, to improve circularity and contribute to climate neutrality, reduction of pollution and toxicity. It provides an overview of current fossil‐based feedstocks, production processes, country‐specific trends, bio‐based production, and sustainability initiatives. Exploring new feedstocks such as lignin, organic residues, and algae can increase biomass availability toward a circular bioeconomy. Integrating chemicals and plastics production into commercial pulp and power factories, biofuel plants, and the sustainable hydrogen economy could boost the sector. Hydrogen is crucial for reducing biomass's oxygen content. These can ultimately contribute to reduce climate change impacts. Designing novel chemicals and plastics to accommodate biomass's higher oxygen content, reduce toxicity, and enhance biodegradability is essential. However, plastic waste mismanagement cannot be solved by merely replacing fossil feedstocks with biomass. Sustainability initiatives can strengthen and develop a circular bio‐based chemical sector, but better management of bio‐based plastic waste and transparent labeling of bio‐based products are needed. This calls for collaborative efforts among citizens, academia, policymakers, and industry.This article is categorized under: Climate and Environment > Circular Economy Climate and Environment > Net Zero Planning and Decarbonization Emerging Technologies > Materials
Purpose Biodegradable mulch film is considered an environmentally friendly alternative to non-biodegradable-based mulch film for agricultural use. The purpose of this study is to compare the environmental impact of non-biodegradable mulch film to biodegradable mulch films for use in Nordic conditions, including assessing their plastic pollution potential. Methods A life cycle assessment was conducted to calculate the potential environmental impacts of the films, while the plastic pollution potential was assessed with a dynamic material flow analysis, considering degradation over time and fate to various environmental compartments. The plastic pollution potential was based on empirical degradation data in Nordic conditions. Results and discussion The results of the LCA and MFA analyses show that the use of non-biodegradable material in Nordic conditions leads to the lowest environmental impacts and pollution if it is fully collected after use. In fact, biodegradable mulch film leads to higher environmental impacts over its life cycle in most environmental impact categories. However, comparing environmental burdens from non-biodegradable and biodegradable mulch film is difficult due to the lack of data on biodegradable films. The results further highlight that biodegradable films will reach a dynamic equilibrium (a plateau phase) in soils in Nordic conditions between the degradation of old film and the application of new film, if not enough time is given for the films to entirely degrade. Farmers would need to apply biodegradable films with several years of interval, if the films should be entirely degraded. Conclusions This study supports the recommendations that biodegradable plastic has potential when used as mulch film, but these recommendations should be situation-specific, depending on farmers’ ability to handle the mulch film properly. The authors highlight that the LCA results are uncertain due to limited data availability and encourage the biodegradable plastic industry to be more transparent by making their LCIA data available.
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