key: cord-0923733-7d32y57a authors: Galanakis, Charis M.; Brunori, Gianluca; Chiaramonti, David; Matthews, Robert; Panoutsou, Calliope; Fritsche, Uwe R. title: Bioeconomy and green recovery in a post-COVID-19 era date: 2021-12-06 journal: Sci Total Environ DOI: 10.1016/j.scitotenv.2021.152180 sha: 09a6a917e83bf0a0e60a8bd80b5667b1e3242864 doc_id: 923733 cord_uid: 7d32y57a The spread of the COVID-19 pandemic has generated a health crisis and repetitive lockdowns that disrupted different economic and societal segments. As the world has placed hope on the vaccination progress to bring back the socio-economic “normal,” this article explores how the bioeconomy can enhance the resilience and sustainability of bio-based, food, and energy systems in the post-COVID-19 era. The proposed recovery approach integrates technological innovations, environment, ecosystem services, “biocities,” food, rural economies, and tourism. The importance of integrating culture, arts, and the fashion industry as part of the recovery is underlined towards building a better bioeconomy that, together with environmental safeguards, promotes socio-cultural and economic innovations. This integration could be achieved supporting communities and stakeholders to diversify their activities by combining sustainable production with decarbonization, stimulating private investments in this direction and monitoring the resulting impact of mitigation measures. Food systems should become more resilient in order to allow adapting rapidly to severe crises and future shocks, while it is important to increase circularity towards the valorization of waste, the integration of different processes within the biorefinery concept and the production of bio-based products and biofuels. the pandemic, increase resilience, and prepare for new "Black Swan" events in the future. As nations organize vaccination plans to tackle the pandemic and apply recovery measures to foster their economies, society should focus on building resilience and maintaining ambitions for zero-carbon futures. This direction reinstates the circular bioeconomy and biobased products and services on the cornerstone of strategic decision making. This trend has been long pursued by the US Biopreferred program to spur economic development, create new jobs and provide new markets for farm commodities. The Program was designed by the 2002 Farm Bill and reauthorized and expanded as part of the Agriculture Improvement Act of 2018 (USDA, 2021) . Just a couple of months before the COVID 19 outbreak, the European Union announced the European Green Deal's for a climateneutral economy by 2050 (EC, 2019) , which also acknowledges the shift from a linear bioeconomy to a circular bioeconomy and promotes changes in policy frames. China, Japan, and the Republic of Korea also announced similar climate-neutral economy plans within 2020 (Schiermacher, 2020) . The US's new administration has also declared its intention to rejoin the Paris climate agreement immediately after the 2020 presidential election (Newburger, 2020) . A transition towards a circular bioeconomy could enhance resilience by valorizing domestic biomass resources and waste. However, although many researchers claim that the bioeconomy is circular by nature (Stegmann et al., 2020) , it is of high importance to underline the "circularity" principles if we want to avoid business-as-usual. A circular economy requires minimizing waste, maintaining the value of products, materials, and resources for as long as possible (EC, 2015) . Stegmann et al. defined circular bioeconomy as giving emphasis "on the sustainable, resourceefficient valorization of biomass in integrated, multi-output production chains (e.g., biorefineries) while also making use of residues and wastes and optimizing the value of biomass overtime via cascading." (Stegmann et al., 2020) . To ensure a rapid and simultaneously efficient transition, a J o u r n a l P r e -p r o o f combination of actions, multi-stakeholder collaboration, and increased financial resources must complement the already provided significant amounts of public and private funds worldwide mobilized through stimulus packages, promoting the sustainable circular bioeconomy (Fritsche et al. 2020) . Moreover, supporting the small-scale local biorefineries should be a priority as they comply with rural development, and exploit opportunities for resource-efficient repayment chains and leverage, specific strengths within their respective, and settings (Panoutsou and Singh, 2020) . To facilitate the efficient green economic recovery, these should be sustained and further enriched with other nature-based solutions such as reforestation, agroecology, and interventions for low-carbon development, as recommended in most of the studies among the 130 ones revised by Burger et al. (2020) . The additional stimulus can facilitate improvements in agricultural value chains that promote biodiversity and sustainable food systems. These include incorporation of artificial intelligence (AI) and Internet and Communication Technologies (ICT) in production, construction of low-energy buildings and protection of natural assets, and off-grid rural electrification, among others. New business models, new production and consumption patterns, new social norms, and new governance schemes could emerge. Emerging innovations could also support manufacturing and food industries in production (e.g., carbon farming, climate-smart forestry) and processing (e.g., automation of food production with robotics) systems (Fritsche et al., 2020) . Besides, the decentralization of food systems and biorefineries (e.g., by utilizing smart specialization funding schemes that promote the model of "biocities") could secure smallholders, enterprises, farmers, and customers (Fritsche et al., 2020) . Figure 1 illustrates opportunities for the transformation of the bioeconomy in the post-COVID-19 era. After controlling the pandemic waves, matching local demand and consumers' requirements with shorter food supply chains and active food assistance policies will be a fundamental challenge to J o u r n a l P r e -p r o o f eliminate uncertainties obtained by the exposure to systemic risks and the growth of the urban population (Pulighe and Lupia, 2020) . Strengthening farmers' position in the value chain should become a priority, and policies that emphasize their inclusiveness must be implemented (EC, 2020b , US Farm Bill, 2018 , Agriculture and Agri-food Canada, 2019 . Agroecological practices should become usual practices among farmers and a key for transition to sustainable food systems. From rooftop agriculture to community gardening and vertical farming, urban agriculture could improve lives and contribute to green recovery by reducing urban areas' dependency on long-distance supply chains and enhancing consumers' education (Fritsche et al., 2020) . The diversification of distribution systems and support of logistic infrastructures to keep added value on-farm will lead to a partial re-territorialization of food systems, providing local communities with a higher governance degree of the distribution system (Maréchal et al. 2020) . Education, nutritional guidelines, and public procurement could also be mobilized to support the consumption of locally produced food and ensure sustainable and healthy diets. Livestock farming systems use approximately 40% of the agricultural land (Mottet et al. 2017) . Their transformation into integrated crop-livestock systems can play an essential role in the farming system's circularity since animals are fed with grass (biomass), which cannot be utilized in alternative ways, and improve soil fertility via manure (Van Zanten et al. 2019) . The reform of the agricultural supply chains should promote "One Health" principles to eliminate the risks related to antibiotic resistance, control diseases that spread between animals and humans like COVID-19 or flu), secure food safety, and reduce greenhouse gas (GHG) emissions (WHO, 2017). Besides, start-ups and existing businesses developing innovative products that redefine our consumption norms (e.g., plantbased proteins and other meat alternatives) are expected to grow their market shares over the next years (Galanakis et al., 2021) . The fortification of foods with bioactive ingredients to consumers' immune system could also be a great opportunity , and the recovery of these J o u r n a l P r e -p r o o f compounds is nowadays conducted in the context of bioeconomy, valorizing sources like food processing by-products, fungi, and yeasts 1 . The "blue bioeconomy" could comprise a vital alternative to land-based animal feed and food. As the possibility of expanding the current fish supply remains limited, a sustainable "intensification" could come from aquaculture, e.g., microalgae cultivation and the development of multitrophic systems Galanakis, 2020, Fritsche et al., 2020) . The current energy system mostly depends on fossil fuels, having an enormous impact on the environment and global economies. European countries are significantly dependent on energy imports (mainly oil, natural gas, and coal) as 58% of EU-28 energy was imported in 2018 compared to 47% imported in 2000 (Fritsche et al. 2021 ). Subsequently, the need for energy security and local resilience through low carbon solutions is prominent. Renewable energy from solar power and wind are intrinsically variable in time and available. Although it cannot replace thoroughly conventional fuels, bioenergy can provide stand-alone energy generation that will smooth the peaks related to the other forms of variable renewable energies. Through bioliquids and biofuels, it is nowadays strongly regarded as an ideal alternative for aviation, marine, and heavy-duty transports, sectors with fewer decarbonization options (Panoutsou et al. 2021) and offers system energy balancing services, as in district heating and electricity systems (Arasto et al. 2017). Moreover, facilitating energy security within the framework of the circular bioeconomy can be achieved through investments that prioritize local bio-based value chains (e.g., biofuel production processes) and promote supply from domestic regions (Lange et al 2020) . The circular bioeconomy offers excellent possibilities to integrate biochemical and thermochemical processes in local biorefineries that can valorize residues and co-products of upstream routes, produce multiple biobased products, energy, and fuels; thus improving circularity 6 . This strategy would mitigate climate change and contribute to local resilience and rural socio-economic J o u r n a l P r e -p r o o f development (Panoutsou and Chiaramonti, 2020) by delivering higher biomass shares within target sectors, creating new permanent jobs, and mitigating raw material competition (Burger et al., 2020) . Besides, biofuel's role in the markets can be even more critical if a higher penetration of electricity in transportation is achieved in the future. The EU Renewable Energy Directive II (REDII) addresses several of these issues but do not fully encompass the relevance of strategic storage and EU-based supply chains as probably needed to push the most-needed EU economic recovery (Chiaramonti and Goumas, 2019, Chiaramonti and Maniatis, 2020). Despite the promotion of circular economy over the last years, industrial production remains too linear and mostly based on non-renewable resources. On a global scale, only a small percentage (12%) of the materials is derived from recycling. In contrast, non-metallic minerals such as sand or gravel account for around half of the extracted resources (IRP, 2019). Scalable innovations and viable technologies could be deployed to produce resource-efficient, circular, and low carbon solutions based on renewable energy and sustainability sourced bio-based materials. A good example is a firstever car made of nanocellulose, a biomaterial five times lighter and stronger than steel, produced in Japan in 2019. New biomaterials, including bioplastics, hold tremendous promise due to their lower carbon footprint and biodegradability than petrochemical products (Panoutsou and Singh, 2020) . Wood-based products (e.g., wood-based textiles, nanocellulose, and bioplastics) represent a reservoir of sequestered carbon that could be used for textiles, furniture, fiber, and construction. An approach towards green recovery, climate change mitigation, and resilience in the post-pandemic world is valorizing woody biomass to produce a wide range of bio-based materials (Fritsche et al. 2020 ). New wood-based textiles have been reported to have a climate mitigation effect of 5 kg CO 2 per kg of product used compared to polyester (IPCC, 2019). Moreover, a shift to biomaterials (based on engineering wood or bamboo) could substantially reduce the number of materials used and our J o u r n a l P r e -p r o o f cities' carbon footprint while creating durable carbon pools (EC, 2015 , Churkina et al., 2020 . Using wood in construction has a climate mitigation effect of 2.4-2.9 kg CO 2 per kg of wood contained in products used compared to concrete (EFI, 2017) while also storing 1 ton of CO 2 in each m 3 of products. Building with wood is also more resource-efficient: It can reduce the total amount of materials used in construction by 50% (IPCC, 2019) and be a key priority in green recovery. However, the growth of biomaterial demand should not create additional pressure on natural resources. Cascading the use of biomasswhich is a fundamental part of a circular bioeconomywill contribute to reducing additional pressure on land for biomass (Fritsche et al. 2020) The COVID-19 pandemic presented an opportunity to accelerate innovations for 3D-printed foods and relevant disposable objects, bio-based packaging, and composite wood materials (Rowan and Galanakis, 2020) . Bio-based materials can also be generated by valorizing the organic fractions of waste and leftovers with different biorefinery approaches. These include biomass refining into biocrude and ethanol through chemical or hydrothermal fragments rich in lignocellulosic components ( Millioti et al., 2019) and integrating pyrolysis and anaerobic digestion in cascading facilities to generate biochar and biomethane, respectively (Casini et al., 2019) . Biomass cascading includes also preferring the utilization of wood to manufacture durable products that live longer, prioritizing the utilization of sawdust and chops (leftovers from the wood industry) for useful recycling purposes, such as the production of innovative products, and energy generation with combustion. This approach requires optimal forest management for wood processing, the utilization of wood products in service, and leftovers' valorization (Fritsche et al., 2021). Terrestrial vegetation systems, particularly forests, stand at the crossroads between the three critical bioeconomy pathways of utilizing more biomaterials, better use of bioenergy, and securing ecosystem services, notably including terrestrial carbon sequestration. This presents risks and J o u r n a l P r e -p r o o f opportunities. Necessarily, harvesting in forests to meet demands for biomass must not be a driver for deforestation and must not exceed those forests' capacity to grow more biomass and so renew the losses. Sustainable forest management (SFM) also recognizes requirements to maintain soil and water quality, conserve biodiversity, protect habitats, and respect for local/indigenous communities. However, even meeting the highest SFM standards cannot necessarily address all the goals of bioeconomy development. An increased intensity of harvesting in forests can negatively impact forest carbon stocks and sequestration, effects which may be temporary or may last for centuries, depending on the specific circumstances (Camia et al., 2021) . As part of optimizing forest management, such negative impacts need to be avoided or their consequences minimized or rapidly ameliorated. Climate Smart Forestry (CSF) (Verkerk et al., 2020) places the aim of increasing wood supply alongside adapting forest ecosystems to reduce their vulnerability to climate change risks and the overall aim of reducing GHG emissions. The potential of CSF has been demonstrated in a few case study areas in Europe. Still, much more work would be needed to embed CSF into everyday forestry planning and practice across a wide range of forest ecosystems and national or regional circumstances. Calls for Nature-Based Solutions (NBS) go further than CSF, applying to all land uses and stressing the importance of all the services provided by ecosystems besides biomass supply. Concerning forests, NBS emphasizes protecting, restoring, and extending forests and wooded landscapes, alongside management for adaptation and wood production. As with CSF, practical approaches and frameworks need to be further developed to enable their general adoption. Restoring and creating forests and increasing trees' presence in the landscape will be particularly relevant as part of the post-COVID-19 recovery. In rural areas, this could create locally accessible sources of biomass (Fritsche et al., 2020) and could contribute to the diversification of agricultural systems and rural regeneration. In urban and peri-urban areas, trees and forests could J o u r n a l P r e -p r o o f contribute similar benefits and also provide more opportunities for recreation, retreat, and engagement with nature. This is in addition to other recognized services of trees in urban areas, notably for moderating climate extremes. More generally, bio-based materials production could be coupled with "nature-based solutions" in the forest sector, contributing to urban greening and rural areas' revitalization (Hirst and Lazarus, 2020) as well as the deployment of cascading facilities to utilize locally produced biomass resources (Fritsche et al., 2020). The emerging picture suggests that forests and forestry could make a significant contribution towards bioeconomy development, with potentially cross-cutting benefits for climate change and ecosystem services and even greater relevance as part of the recovery from the post-COVID-19 pandemic. However, there are evident constraints on forests' capacity to supply more biomass without compromising the delivery of the broader benefits of forests. Hence, a sophisticated policy response is required to support forest protection, restoration, and extension in conjunction with the mobilization of woody biomass resources. Ecosystem services can offer significant prospects for agriculture, forestry, tourism, culture, health, and wellbeing. 'An ecosystem services perspective provides a useful framework to consider the use of biomass resources for various goals, provided that utilization is realized within the boundaries of sustainability' (Pfau et al., 2014) . A sustainable, circular bioeconomy recognizes the added value of ecosystem services for the environment, the economy, and society. Thus, it ensures they are safeguarded and improved through local co-creative decision planning and implementation. The circular bioeconomy offers a unique opportunity for building decentralized energy production and water and landscape management. It supports the natural capital and improves biodiversity by promoting agroecological farming (Tamburini et al., 2020) , re-establishing organic carbon and microbiota in the soil and land, recycling nutrients, and contributing to climate mitigation. For J o u r n a l P r e -p r o o f example, the deployment of biochar should be promoted as it can permanently remove carbon dioxide from the atmosphere and fight land abandonment due to desertification: more than 8.5 Mha in the Mediterranean region under risk of marginalization (IPCC 2019, Chiaramonti and Panoutsou, 2019) . Promoting paludiculture could also be another suitable option for other areas, as peatlands play a significant role in offsetting CO 2 emissions through sequestration. They account for ca. 3% of the earth's surface, storing 1.4 trillion tonnes of carbon, which is equivalent to 75% of all atmospheres' carbon (Rowan and Galanakis, 2020). Cities have a critical role in developing and implementing the circular bioeconomy due to the large population, high intensity of economic activities, and increased consumption of goods. Urban living has entered a new generation where cars' mobility and subsequent carbon emissions could be minimized. For instance, at the beginning of 2021, Saudi Arabia announced "The Line," a revolutionary city of 170 km in length to be built around nature with zero cars, zero streets, and zero carbon emissions (Arab News, 2021). However, current and modern cities' active mobility networks and public transportation infrastructures must be expanded to ensure all citizens' affordability and accessibility (including those living in suburban neighborhoods) (Daniels et al., 2020) . Rebound effects in urban/peri-urban and non-urban mobility can also be reasonably expected due to consumers' reduced confidence in public transportations' health and safety. This trend could change consumers' behavior even well beyond the pandemic and should be very carefully monitored. The tourism industry should also transform by changing the current practices that promote the continuous consumption of resources to a model that favors the decarbonization of transport systems and eco-tourism. Revealing green spaces and promoting healthy activities such as cycling and walking instead of just encouraging them as climate mitigation measures may increase public support of the transition (Acuto et al., 2020) . Finally, it is essential to develop urban agriculture and forestry to provide local feedstock and fresh vegetables, biodiversity gains, green infrastructure, and nature-based solutions to rebuild cities and retrofit biomass supply chains (Rousseau and Deschacht, 2020 ). Fostering regional development in rural areas requires citizens' training on business models and technical aspects (Chateau and Mavroeidi, 2020) . This process will lead to green employment opportunities that will boost post-COVID-19 recovery and facilitate a green transformation to a low carbon economy. The transformation of the circular bioeconomy towards sustainability requires expanding its social dimension by linking mobility, sustainable food, and materials consumption with culture, arts, and fashion (Hanspach et al., 2020) . During the political discussions about the financial packages to recover pandemic-related economic losses, there is a sense that the cultural dimensions have not been taken into account or left behind. The acute reaction to operate remotely and "go virtual" the pandemic by promoting take away, distance learning, and digital environments led to the shutdown of arts performing and closing museums and restaurants. This transformation also concerns leisure time and entertainment (social media, gaming, etc.). The practice of spending more time online has, on the one hand, reduced the spread of the COVID-19, but on the other, has created a significant gap in real-world social interaction and allowed manipulation of public opinions via populism, "bubbles," and fake news. These risks to social cohesion should be seriously considered and included in the overall planning to transition to a sustainable bioeconomy. People will have more green public spaces J o u r n a l P r e -p r o o f and increased opportunities to get involved with and inspired by nature. Culture, arts, and relevant social practices (e.g., rental, resale) could also support this transition by replacing material consumption, reducing exposure to fake news, and creatively promoting the bioeconomy wellbeing. Fashion brands have already set the pace by emphasizing sustainability and circularity (McKinsey and Company 2020) e.g., using recycled (e.g., organic instead of regular cotton) and bio-based textiles that could lower and bio-based textiles that could lower GHG emissions. Table 2 presents a collection of bioeconomy solutions to support green recovery and enhance system resilience in the post-COVID-19 world derived from Fritsche et al. and the authors' further work (Fritsche et al. 2021) . Food systems' resilience and mitigation strategies that allow adapting rapidly to inevitable crises should become a priority, ensuring that future shocks and extreme events will minimally affect food chains and vulnerable people. It is also vital to increase circularity and integration of biochemical and thermochemical processes for waste's valorization targeting, the production of bio-based products and biofuels. The integration can be achieved using biorefinery processes to extract critical raw materials, e.g., as identified and listed by the EC. In a more general view, it is time and an excellent opportunity to develop a transformative, circular, inclusive, and sustainable bioeconomy that includes all citizens, fosters innovation and provides at least partial economic recovery solutions post-COVID-19 world. It is vital to swift the well-known slogan of "no one left behind" to "leaving no one out." This change could be achieved in practice by promoting short-and long-term strategies and actual measures supporting communities, stakeholders, and operators to preserve and diversify economic activities, keep jobs, and ultimately build the required resilience to overcome the crisis. These actions should be combined with sustainable production and decarbonization and stimulate private investments in this direction and monitor the resulting impact of mitigation measures. Further, recent studies and programs suggest that governments around the world should learn from this distressing experience and avoid rolling back current environmental standards and businessas-usual approaches (Fritsche et al. 2021) . Therefore, a detailed investigation is needed to understand how the circular bioeconomy can address the pandemic effects and improve rural and urban areas' sustainability and its implications and achieve the Sustainable Development Goals. Together with the recovery of economies and industrial sectors, it is essential to recover other sectors such as tourism. Finally, revealing the role of socio-culture practices from fashion and culture to arts, which are vital components of societal change and need recovery support, should also become a priority. Acuto, M., Larcom, S., Keil, R., Ghojeh, M., Lindsay, T., Camponeschi, C., et al. (2020) J o u r n a l P r e -p r o o f  Reduced investments in the energy sector Wood supply and forest management  Delivery of wood only to major industries  Reduced or collapsed wood construction during the lockdown  Increased demand for "niche" products such as garden decking and furniture due to renovations during the lockdown  Significant increases in small roundwood paper and pallet production due to increased online shopping.  Restricted workforce activities due to reduced mobility of workers and social distancing during tree planting  Delayed responding to forest fires or disease outbreak  Develop crisis management plans that predict potential threats, and prevention and emergency response tools Food  Promote community marketing channels for local commodities to ensure their distribution at primary and secondary markets  Intensify efforts on reducing and valorizing food waste via integrated biorefineries  Support the establishment of food councils at municipal or provincial levels  Energy  Stimulate local supply chains and securing investments in renewable fuels by stable policies and dedicated financial instruments  Improve energy resilience through balancing the grid, developing smart infrastructures, and enhancing digital capacities to recalculate potential bioenergy role in the post-COVID-19 era  Account for changes in urban environments (e.g., teleworking, consumer behavior) to re-adjust planning and market uptake of bioenergy carriers within the circular bioeconomy  Increase funding for circular bioeconomy by mobilizing private investments  Stimulate biobased products and services through tax rebates and other subsidies promoting their usage Cross-cutting  Promote the "BioWEconomy" and the industrial symbiosis concepts  Support innovations and technological disruptions  Promote decentralized biorefineries Establish sustainability criteria for production  Support the optimal utilization of biomass  Ameliorate negative impacts on carbon stocks and sequestration in agricultural and forest systems Figure 1 . 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