Search Results (2,435)

This review presents a comprehensive review of cellulose–chitosan-based biocomposites that have high potential as sustainable alternatives to synthetic polymers. These biocomposites, due to biocompatibility, biodegradability, and antimicrobial properties, attract attention for wide application in various industries. This review includes modern methods for producing cellulose–chitosan composites aimed at improving their mechanical and chemical properties, such as strength, flexibility, and water resistance. Particular attention is paid to the use of composites in packaging materials, where they provide protection and durability of products, and help reduce the environmental footprint. In medicine, such composites are used for drug delivery and tissue engineering, providing controlled release of active substances and tissue regeneration. In addition, their advantages in wastewater treatment are discussed, where the composites effectively remove heavy metal ions and organic pollutants due to their high sorption capacity. This study focuses on the wide potential of cellulose–chitosan biocomposites and their role in solving environmental problems. Full article

This article presents the results of a systematic review investigating the potential of agricultural wastes as sustainable and low-carbon alternatives in reinforced concrete (RC) production. Background: The depletion of natural resources and the environmental burden of conventional construction materials necessitate innovative solutions to reduce the carbon footprint of construction. Agricultural wastes, including coconut shells (CSs), rice husk ash (RHA), and palm oil (PO) fuel ash, emerge as promising materials due to their abundance and mechanical benefits. Objective: This review evaluates the potential of agricultural wastes to improve sustainability and enhance the mechanical properties of RC structural elements while reducing carbon emissions. Design: Studies were systematically analyzed to explore the sources, classification, and material properties of agro-wastes (AWs), with a particular focus on their environmental benefits and performance in concrete. Results: Key findings demonstrate that AWs enhance compressive strength, tensile strength, and modulus of elasticity while reducing the carbon footprint of construction. However, challenges such as variability in material properties, limited long-term durability data, and lack of standardized guidelines hinder their broader adoption. Conclusions: AWs hold significant potential as sustainable additives for RC elements, aligning with global sustainability goals. Future research should address material optimization, lifecycle assessments, and regulatory integration to facilitate their mainstream adoption in construction. Full article

This research investigates the effects of inclusive growth, environmental policy incentives, fintech innovations, and globalization on the environmental sustainability of G20 countries. In light of the growing global concern about carbon emissions from anthropogenic sources, which contribute to severe environmental degradation, the Paris Agreement aims to mitigate these impacts by controlling carbon emissions. This study explores how inclusive growth, fintech, and environmental policies interact to affect ecological footprints in G20 member countries, which represent some of the world’s most influential economies and policymakers. Specifically, inclusive growth is examined for its potential to reduce economic and social inequalities, which, if unmanaged, can exacerbate environmental degradation. In contrast, fintech is analyzed as a double-edged sword—its impact on sustainability depends on its influence on industries and economies, which may either exacerbate or alleviate environmental harm. Globalization’s role is scrutinized for its interactions with the economic, social, and ecological dimensions of sustainability. Our methodology employs advanced econometric models to analyze data from 1990 to 2023, focusing on the relationships between these variables and ecological footprints. Key findings suggest that while fintech can both increase and reduce environmental degradation depending on its application, environmental policy incentives are crucial for promoting sustainable practices and clean technology adoption. Inclusive growth can mitigate environmental harm by addressing inequalities, and globalization’s effects on sustainability depend largely on regulatory frameworks and corporate governance. This study contributes to the literature by highlighting the complex interactions between economic growth models, technological advancements, and environmental policies. Its originality lies in its comprehensive analysis of the G20 economies, shedding light on how inclusive growth, fintech, and environmental policies shape environmental outcomes. The research offers key policy implications, stressing the need for stringent environmental regulations, the promotion of green technologies, and the diversification of economies to reduce reliance on resource rents. The findings emphasize the importance of balancing economic development with environmental sustainability to achieve long-term ecological stability. Full article

Energy is regarded as a crucial facilitator of social and economic advancement, and, consequently, sustainable development. The concept of sustainable energy development has evolved to become a significant political objective addressed by governments worldwide. All sectors of the economy, including agriculture, require stimulation, which should be triggered by linkages and structural changes contributing to qualitative and quantitative progress. Agriculture has a substantial impact on the environmental footprint, playing a pivotal role in causing climate change. The objective of this article is to address the research gap concerning the monitoring of sustainable development in the energy and agricultural sectors within the European Union. The assessment of sustainability is a complex process since it is a multidisciplinary field of study with practical implications. The progress of sustainable development in the energy and agricultural sectors was evaluated through a comprehensive analysis of relevant literature and statistical data obtained from the Eurostat database and the Research Institute of Organic Agriculture FiBL. The analysis encompasses the period between 2015 and 2022. The article employs the taxonomic method, specifically the linear ordering method (standardised sum method), which enables the construction of a synthetic measure. This approach enabled the creation of rankings and comparisons between European Union countries. The studies show that in the European Union, sustainable energy development and sustainable agriculture show significant territorial differentiation. The sustainable energy measures in the countries with the highest scores (Estonia, Sweden, Finland, Austria) were 2–3 times higher than in the countries with the lowest scores (Cyprus, Belgium, Greece, Bulgaria). A similar situation was observed for sustainable agriculture measures—the maximum measures (Estonia, Bulgaria, Slovakia, Lithuania) were about two times higher than the minimum measures (Poland, Malta, Slovenia, Luxembourg). The findings indicate that, on the one hand, there have been favourable developments at the national level in Europe, but also that there are a number of existing disparities, together with evidence of potentially significant deviations from the targets set out in the 2030 Agenda. Full article

Background/Objectives: The water footprint (WF) provides information on the impact of individual foods on water consumption, but to better direct food production toward water saving, we need to understand how to reduce the WF of our diets while keeping it healthy. In this study, we compared the WF of healthy diets based on national food-based dietary guidelines with the aim of highlighting changes in dietary patterns that could reduce water requirements without compromising nutritional adequacy. Methods: Three 2000 kcal/day dietary patterns were elaborated following the Italian, Spanish, and American dietary guidelines, and their total, green, blue, and grey WFs were calculated. Results: The Italian dietary pattern showed the lowest total WF (2806 L per capita/day), with the American and Spanish patterns being 8% and 10.5% higher, respectively. The food groups contributed differently to the total WF. In the USA, animal foods were the main contributor (56% versus 41% in Spain and 38% in Italy). The contribution of plant foods was higher in Italy (61%) than in Spain (54%) and the USA (38%). The distribution of the total WF between WF_green, WF_blue, and WF_grey was similar across the dietary patterns. Within each food group, and mainly in the animal-origin food group, the type of product significantly modulated the WF. Conclusions: Different diets can be equally nutritionally sustainable but have different impacts on environmental sustainability. The comparison of their WFs can be the starting point to promote dialogue between nutritionists, operators in the environmental sector, and the agri-food industry to ensure a healthy and balanced approach. Full article

This paper presents a comparative life cycle assessment (LCA) of the traditional and modern materials used in heritage building restoration, focusing on mud, limestone, decorative plaster, blended hydraulic cement, and ready-mix concrete. The analysis examines key environmental impact categories, including global warming potential (GWP), ozone depletion potential (ODP), acidification potential (AP), eutrophication potential (EP), and water use across multiple life cycle stages. The results reveal that mud and limestone, while having lower initial environmental impacts in production, contribute significantly to ODP and GWP during transportation due to their heavy weight. Modern materials like blended hydraulic cement and ready-mix concrete exhibit the highest overall environmental impacts, particularly in GWP, AP, and water use, due to their energy-intensive production processes. Decorative plaster, while lower in initial impacts, gains higher environmental burdens over time due to its frequent replacement. This study highlights the need to optimize transportation and improve recycling practices for traditional materials, while also encouraging the exploration of alternative materials for reducing the environmental footprint of heritage restoration. Full article

This research work aimed to analyse the impact and potential of cardboard as a construction material, as well as cultural aspects and sustainable construction regulations, in the context of Lima, Peru. The study employed a mixed research methodological approach, including three case studies from Japan, the Netherlands, and the UK, online interviews, and surveys with British, Polish, and Peruvian architects. Additionally, a range of dynamic thermal simulations of an existing school building in the UK employing cardboard construction material were conducted to evaluate its impact on energy consumption. The survey revealed that there is a gap in information about the material applied to the architecture and construction environment, which is coupled with a general distrust and little credibility regarding its inclusion. However, cardboard is also seen as a complementary material in hybrid construction systems, with potential recycling enhancing environmental sustainability. The case studies showed cardboard structures can fulfil different functions with flexible designs that are adaptable to different contexts, simple, economical, accessible, recyclable, and capable of resisting natural disasters. However, post-construction consequences affect the structural integrity. Simulations carried out with EnergyPlus confirmed that cardboard has an optimal performance that can be a great complement or variation to traditional materials to reduce the carbon footprint and could meet the U-value requirements established in the construction regulations. Since it has low thermal conductivity and good acoustic insulation, it is recyclable and generates fewer CO₂ emissions, and it is economical, accessible, versatile, and light in use. For example, from a technical point of view, when used as thermal insulation, this element outperforms other conventional materials due to its cellular structure, which traps air, a poor conductor of heat. This study provides a set of guidelines for sustainable building practices. Such guidelines can be adopted to produce a prototype of a sustainable building using cardboard as the main construction material to contribute to the current debates on the state of building materials. It offers valuable perspectives on the development of building materials, construction techniques, and building regulations that can guide the way forward for sustainable building practices in the future, informing policymakers and building designers about construction techniques that adhere to building codes and lessen the built environment’s environmental impact. Full article

Climate change is a global challenge that impacts rangeland and pastureland landscapes by inducing shifts in temperature variability, precipitation patterns, and extreme weather events. These changes alter soil and plant conditions, reducing forage availability and chemical composition and leading to nutritional stress in cattle. This stress occurs when animals lack adequate water and feed sources or when these resources are insufficient in quantity, composition, or nutrient balance. Several strategies are essential to address these impacts. Genetic selection, epigenetic biomarkers, and exploration of epigenetic memories present promising avenues for enhancing the resilience of cattle populations and improving adaptation to environmental stresses. Remote sensing and GIS technologies assist in locating wet spots to establish islands of plant diversity and high forage quality for grazing amid ongoing climate change challenges. Establishing islands of functional plant diversity improves forage quality, reduces carbon and nitrogen footprints, and provides essential nutrients and bioactives, thus enhancing cattle health, welfare, and productivity. Real-time GPS collars coupled with accelerometers provide detailed data on cattle movement and activity, aiding livestock nutrition management while mitigating heat stress. Integrating these strategies may offer significant advantages to animals facing a changing world while securing the future of livestock production and the global food system. Full article

Paper-based packaging materials have gained attention from academia and industry for their outstanding environmental sustainability advantages. However, they still encounter major challenges, such as low mechanical strength and inadequate functionality, hindering the replacement of unsustainable packaging materials. Inspired by the remarkable strength of trees provided by cellulose fibers and the water and heat protection of trees provided by bark, this study developed a new biomass-based packaging material (SNC-C) that combines strength, thermal insulation, and water resistance. The material was created by simply blending straw nanocellulose (SNC) with oak bark (i.e., cork), which naturally provides water-resistant, thermal insulation, and unique regenerative properties. The dense layered structure formed entirely by SNC generates a tensile strength reaching up to 60.93 MPa. With the cork cavity structure, the heat transfer rate of the obtained material is reduced to 2.90–3.01 °C/(cm·min). The combining of the closed-cell structure and the suberin component of the cork results in a low water vapor transmission rate (WVTR) of the material of 400.30 g/(m²·24 h). This all-biomass material with excellent performance and low environmental footprint offers a promising solution for the development of sustainable multifunctional packaging materials. Full article

The global trend of rapid economic development and urbanization has created questions regarding the quality of the environment. In the group of emerging economies (E7), environmental challenges have intensified due to specific dynamics unique to these nations. This research is focused on determining the influence of urbanization (UBNZ), renewable energy (RWNE), capital formation (CPFR), foreign direct investment (FDIN), and natural resources (NTRR) on the ecological footprint (ECLF) of the E7 economies. The study employs the Panel Autoregressive Distributed Lag (PMG-ARDL) approach to examine these relationships, utilizing data spanning the period of 1990–2022. The results reveal that a 1% increase in the CPFR, NTRR, and UBNZ leads to increases in the ECLF of 0.0581%, 0.0263%, and 0.0299%, respectively. Conversely, a 1% increase in RWNE and FDIN reduces the ECLF by 0.0207% and 0.0556%, respectively, in the E7 economies. The study’s findings are further validated through robustness testing via the fully modified ordinary least squares (FMOLS) method. The study concludes with actionable policy recommendations aimed at enhancing environmental quality within these economies. These recommendations include promoting renewable energy adoption, attracting environmentally sustainable foreign investments, and implementing strategies to manage urbanization and natural resource use effectively. Full article

Peeling is a key step in the industrial production of canned peeled tomatoes, vital for optimizing efficiency, yield, product quality, waste reduction, and environmental impact. This study presents a comparative assessment of the economic and environmental impacts of adopting innovative peeling technologies, including infrared (IR), ohmic heating-assisted lye (OH-lye), and ultrasound-assisted lye (US-lye) peeling, relative to conventional steam and lye peeling methods. Focusing on a medium-sized Italian tomato processor, the impacts of these methods on productivity, water and energy consumption, wastewater generation, and environmental footprint using Life Cycle Assessment (LCA) methodology, were evaluated. Findings indicated that adopting IR, OH-lye, and US-lye methods enhanced peelability (ease of peeling > 4.5) and increased production capacity by 2.6–9.2%, while reducing solid waste by 16–52% compared to conventional steam and lye methods. LCA results showed IR as the most environmentally favorable method, followed by steam, OH-lye, and US-lye, with conventional lye peeling being the least sustainable. OH-lye and IR methods also significantly reduce water and energy use, while US-lye shows higher demands in these areas. Additionally, OH-lye and IR methods require little or no NaOH, minimizing chemical consumption and wastewater production, which offers notable environmental and cost advantages. Overall, this preliminary study underscores economic and environmental potential for novel peeling technologies, encouraging industry consideration for adoption. Full article

The impact of different agronomic practices on pea adaptability to terminal drought conditions can provide increased knowledge on optimizing pea yield, biomass, and environmental footprints. Two field experiments in the layout of the split–split plot and a 3-factor (fertilizer × sowing date × seeding rate) design were carried out on pea crops in 2021 and 2022 in Kazakhstan’s dry steppe and steppe zones. The objective was to evaluate the significance of these factors and their interactions on biomass and yield based on 12 treatments in the dry steppe and 18 treatments in the steppe. In both zones, fertilizer effect on biomass and yield was significant (p < 0.05) and resulted in a biomass increase of 17% and a yield increase of 16% in the dry steppe and 19% and 17.9%, respectively, in the steppe. The sowing date’s effect on biomass and yield in both zones was also significant, with maximum yield with late sowing (20 May) and biomass increased by 10% compared to the earliest sowing date (10 May) and yield increase of 9.2% in the dry steppe, and 15.7%, and 30%, respectively, in the steppe. Seeding rate and none of the first- and second-order interactions between these three factors on biomass and yield were significant in either zone. The relationship between factors and final biomass and yield showed that fertilizer application was dominant. Our research also showed that yield was highly correlated (r = 0.8–1.0, p < 0.05) with biometric indicators of plants, such as the weight of seeds per 1 m² and the weight of seeds per plant. The findings from this study indicate that adaptive crop production to increase the yield of peas can be used for environmental conditions of dry steppe and steppe based on the development of new agronomic practices, especially those that include fertilizer application with a combination of sowing dates. Full article

Grape pomace (GP), a byproduct of winemaking, has gained significant attention as a sustainable and functional ingredient with applications in the food and nutraceutical industries. This review examines the potential of GP in meat products and analogs, functional foods, and nutraceuticals, highlighting its composition, health benefits, and role in enhancing nutritional and functional properties. Rich in dietary fiber, polyphenols, essential fatty acids, and bioactive compounds, GP exhibits antioxidant, anti-inflammatory, and gut health-promoting effects, making it suitable for various food applications. Its incorporation into meat products, such as sausages and patties, improves texture, enhances shelf life, and increases nutritional value while reducing the environmental footprint. GP is also effective in functional foods such as baked goods, dairy and plant-based yoghurts, smoothies, and snack bars, where it can enrich fiber and polyphenol content, aid in satiety, and provide health benefits beyond basic nutrition. The challenge is how to maintain the sensory properties characteristic of conventional, unmodified products. In nutraceuticals, GP’s polyphenolic compounds and dietary fiber support antioxidant, anti-inflammatory, and metabolic health functions, with applications as antioxidant supplements, gut health boosters, weight management aids, and cardiovascular health supplements. Despite challenges such as taste modification and optimizing bioavailability, GP’s versatility and sustainability highlight its value in developing innovative, health-oriented products. This review emphasizes the promise of GP as a valuable ingredient in functional foods and nutraceutical formulations, contributing to health, sustainability, and resource efficiency. Full article

This study explores the development and performance of photocatalytic cementitious composites modified with nano-TiO₂ to address urban air quality and sustainability challenges. Nine mortar series were prepared, incorporating binders with varying carbon footprints and mass contents across different series. The interplay between the fundamental (abrasion resistance) and functional (air purification efficiency) properties of the composites’ surfaces and interfaces was investigated. The photocatalytic removal of airborne pollutants, specifically nitrogen oxides (NOx) and ozone (O₃), was evaluated under simulated environmental conditions. The variations in binder composition influenced the composites’ overall initial carbon footprint and air purification efficiency. The assessment revealed a possible net decrease in carbon emissions over the life cycle of the composite due to the removal of ozone (greenhouse gas) and its precursor—NOx, highlighting the potential of photocatalytic cementitious composites for dual environmental benefits in an urban environment, emphasizing the critical role of surface and interface engineering in achieving carbon-negative composites. Full article

Urban logistics play a pivotal role in smart city development, aiming to improve the efficiency and sustainability of goods delivery in urban environments. As cities face growing challenges related to congestion, traffic management, and environmental impact, there is an increasing need for advanced technologies to optimize urban delivery systems. This paper proposes an innovative framework that integrates artificial intelligence (AI), autonomous vehicles (AVs), and Internet of Things (IoT) technologies to address these challenges. The framework leverages real-time data from IoT-enabled infrastructure to optimize route planning, enhance traffic signal control, and enable predictive demand management for delivery services. By incorporating AI-driven analytics, the proposed approach aims to improve traffic flow, reduce congestion, and minimize the carbon footprint of urban logistics, contributing to the development of more sustainable and efficient smart cities. This work highlights the potential for combining these technologies to transform urban logistics, offering a novel approach to enhancing delivery operations in densely populated areas. Full article