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Search Results (357)

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43 pages, 980 KB  
Review
Reimagining Residential Buildings: Design, Ventilation and Health in the Era of Climate Change and Pandemics
by Alan Kabanshi
Energies 2026, 19(12), 2859; https://doi.org/10.3390/en19122859 - 16 Jun 2026
Viewed by 215
Abstract
Residential buildings must now be designed and retrofitted as adaptive climate–health–work systems rather than as static housing units. This structured literature review synthesises peer-reviewed journal and conference evidence on residential taxonomy, ventilation, indoor environmental quality, overheating, airborne infection resilience, post-pandemic occupancy changes and [...] Read more.
Residential buildings must now be designed and retrofitted as adaptive climate–health–work systems rather than as static housing units. This structured literature review synthesises peer-reviewed journal and conference evidence on residential taxonomy, ventilation, indoor environmental quality, overheating, airborne infection resilience, post-pandemic occupancy changes and future performance benchmarks. The review shows that single-family and multifamily buildings remain the most practical first-order categories because they differ in envelope exposure, ventilation pathways, system ownership, governance, retrofit feasibility and occupant control. Single-family dwellings generally provide greater household autonomy, roof-based renewable potential and room-level intervention flexibility, but can also carry higher envelope losses, lower density and stronger dependence on occupant operation. Multifamily buildings benefit from compactness and shared infrastructure, yet face additional risks from common services, vertical shafts, stack effects, corridor pressurisation, inter-zonal airflow and collective maintenance. Ventilation evidence indicates that natural, exhaust-only, supply, balanced heat-recovery, hybrid, demand-controlled and filtration-based strategies cannot be ranked universally; their effectiveness depends on climate, airtightness, pollutant source, occupancy, maintenance and governance. This review further shows that overheating, cooling-demand growth, airborne infection preparedness and remote work are shifting residential performance from winter-centric energy efficiency toward year-round thermal resilience, clean-air delivery and prolonged-occupancy functionality. A future taxonomy is therefore proposed around adaptive performance attributes, including thermal resilience, clean-air capacity, ventilation controllability, energy flexibility, remote-work readiness, vulnerability and retrofit potential. The core contribution is a hypothesis-generating, decision-support and benchmark-development framework for aligning residential design, retrofit and policy with health, indoor environmental quality, energy efficiency and carbon performance. Full article
(This article belongs to the Section G: Energy and Buildings)
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23 pages, 16643 KB  
Article
An Overview of the Tabanidae (Diptera) of Uruguay
by Tiago Kütter Krolow, Christian R. González, María Martínez, Alejo Menchaca, Anderson Saravia, Steve Mihok, Pablo Parodi and Rodrigo F. Krüger
Taxonomy 2026, 6(2), 36; https://doi.org/10.3390/taxonomy6020036 - 12 Jun 2026
Viewed by 622
Abstract
The Tabanidae fauna of Uruguay has historically received limited attention, with most records dating from the 19th and early 20th centuries and concentrated near Montevideo. Here, we provide an updated synthesis of the Uruguayan Tabanidae fauna based on a comprehensive review of the [...] Read more.
The Tabanidae fauna of Uruguay has historically received limited attention, with most records dating from the 19th and early 20th centuries and concentrated near Montevideo. Here, we provide an updated synthesis of the Uruguayan Tabanidae fauna based on a comprehensive review of the literature, examination of historical material, recent field surveys, and validated records from citizen science. We recognized 52 valid species in 15 genera and six tribes, representing approximately 1% of the world diversity of the family. Four species are currently considered to be endemic to Uruguay. Since the last national revision, species richness has increased by 12%, largely through overlooked bibliographic records, the re-examination of museum specimens, and new distributional data. The fauna is dominated by the subfamily Tabaninae, particularly the tribes Diachlorini and Tabanini, whereas Pangoniinae is poorly represented. Males are described for 62% of the species, but immature stages are known for fewer than 20%, highlighting significant gaps in knowledge. Distributional data reveal a strong spatial bias: nearly half of the species are known from a single department, and four departments still lack records. A comparison with the Brazilian Pampa suggests that only slightly more than half of the species are shared, indicating that the regional fauna remains incompletely documented. Primary-type specimens are predominantly housed in European institutions, reflecting the historical development of Neotropical dipterology and the absence of resident specialists. Overall, our results suggest that the apparent modest diversity of Uruguayan Tabanidae likely reflects historical sampling bias, rather than true faunal impoverishment. Expanded field surveys and integrative taxonomic approaches are essential to clarify species limits, document immature stages, and better understand the biogeography of horse flies in the Pampa biome. Full article
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31 pages, 3444 KB  
Article
Comparative Assessment of Residential Heating and Ventilation Packages: Operational Energy Performance and Screening Life-Cycle Carbon Context
by Jan Stefański and Anna Stefańska
Sustainability 2026, 18(11), 5589; https://doi.org/10.3390/su18115589 - 2 Jun 2026
Viewed by 447
Abstract
The environmental performance of residential buildings depends not only on envelope quality but also on the choice of heating, domestic hot water, and ventilation systems. This study presents a comparative assessment of eight technology packages for a reference single-family house located in Warsaw, [...] Read more.
The environmental performance of residential buildings depends not only on envelope quality but also on the choice of heating, domestic hot water, and ventilation systems. This study presents a comparative assessment of eight technology packages for a reference single-family house located in Warsaw, Poland, using a harmonised framework under Polish EPC calculation assumptions, with identical building parameters, system boundaries, and functional assumptions for all variants. Operational performance was evaluated using Energy Performance Certificate indicators, including useful energy, final energy, non-renewable primary energy, operational CO2 emissions, and the share of renewable energy sources. In addition, a comparative 50-year scenario of operational CO2 emissions was developed, and a screening life-cycle carbon assessment of the reference building fabric and major building components was performed to provide a material and construction-related carbon context for the operational comparison. The embodied impacts of package-specific technical systems were excluded from the LCA scope. The results showed that fossil-dominated packages generated the highest primary energy demand and operational emissions, whereas renewable-supported and hybrid configurations substantially improved environmental performance. Under the adopted EPC-based accounting assumptions, the fully renewable packages achieved the lowest operational indicators; however, these variants should be interpreted as upper-bound theoretical scenarios rather than as demonstrated real-life zero-emission solutions. Therefore, they were not used as the main basis for the practical ranking. Among the practically comparable mixed configurations, the most favourable operational results were obtained for renewable-supported heat-pump-based packages. The screening life-cycle assessment indicated that a substantial part of the total environmental burden was associated with the product and construction stages of the reference building. The results confirm that the interpretation of residential technical packages depends strongly on the adopted assessment perspective and that operational indicators should be considered together with at least a screening-level carbon context for the building fabric. According to the calculation results, the EP value ranges from 0 to 90.8 kWh/(m2·year), depending on the technology package. Full article
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19 pages, 16502 KB  
Article
Families Flourish: Triangulating Housing, Neighborhood, and Life Coaching for Health
by Jason Reece, Jee Young Lee and Rachel Kleit
Int. J. Environ. Res. Public Health 2026, 23(6), 724; https://doi.org/10.3390/ijerph23060724 - 29 May 2026
Viewed by 374
Abstract
Previous research demonstrates that housing security and quality influence physical and mental health. Despite a rich literature on housing and health, less is known about the processes through which housing mobility programs directly affect family health. We use a single-case design to examine [...] Read more.
Previous research demonstrates that housing security and quality influence physical and mental health. Despite a rich literature on housing and health, less is known about the processes through which housing mobility programs directly affect family health. We use a single-case design to examine how the health of families with children is impacted by Families Flourish, a mobility program that combines three years of rental assistance with life coaching and placement in safe, well-resourced neighborhoods. Drawing on developmental and formative evaluation data, including longitudinally collected surveys, interviews, and administrative records, we trace families’ experiences over time. Our analysis identifies distinct pathways through which mobility improves mental and physical health—via improved indoor air quality, reduced environmental and parental stress, and enhanced access to resources. Initial health gains are subsequently leveraged to improve educational and economic outcomes. We observe a temporal sequence in outcomes, with early physical health gains and later mental health improvements as stability and safety increase. We conclude by situating these identified pathways within existing scholarship and discussing implications for planning and fair housing practice. Full article
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17 pages, 307 KB  
Review
Performance Comparison of Smartphone-Based Portable Slit Lamp Microscopes: A Narrative Review of Medical Devices Applicable to Telemedicine in Ophthalmology
by Eisuke Shimizu, Ryota Yokoiwa and Shintaro Nakayama
Appl. Sci. 2026, 16(9), 4448; https://doi.org/10.3390/app16094448 - 1 May 2026
Viewed by 552
Abstract
Smartphone-based portable slit lamp microscopes are increasingly used as low-cost tools for anterior segment imaging in teleophthalmology, yet the literature combines heterogeneous study designs, comparator standards, and deployment contexts. Because the evidence base spans engineering reports, basic science, clinical validation studies, implementation research, [...] Read more.
Smartphone-based portable slit lamp microscopes are increasingly used as low-cost tools for anterior segment imaging in teleophthalmology, yet the literature combines heterogeneous study designs, comparator standards, and deployment contexts. Because the evidence base spans engineering reports, basic science, clinical validation studies, implementation research, and case-based telemedicine, we structured a narrative review rather than a pooled meta-analysis. We searched PubMed/MEDLINE, Embase, Scopus, Web of Science, Google Scholar, Cochrane Library, ScienceDirect, and DOAJ for literature available on or before 28 February 2026, supplemented by manual reference list screening and targeted retrieval of relevant technical standards. Peer-reviewed English original studies formed the core evidence base; contextual non-English and gray literature sources were retained only when explicitly labeled as non-core. To improve interpretability, the results were grouped by synthesis domain, clinical task, comparator standard, telemedicine scenario, and artificial intelligence (AI) dataset/validation characteristics. The highest-confidence evidence concerned nuclear cataract grading, tear film breakup time and corneal staining assessment, anterior chamber depth screening, tear meniscus height measurement, allergic conjunctival grading, and selected corneal disorders. Agreement with conventional slit lamp examination or anterior segment optical coherence tomography was generally moderate to high within task-specific comparisons, and telemedicine deployment was feasible for screening, follow-up, remote consultation, emergency triage, house visits, and outreach. However, illumination reporting remains inconsistent, explicit ISO-aligned dosimetry is sparse, and most AI studies remain retrospective, single-center, and device family-specific. Current evidence, therefore, supports smartphone-based portable slit lamp microscopes primarily as adjunctive teleophthalmology tools rather than replacements for comprehensive in-clinic microscopy. The synthesis clarifies where conclusions are supported by comparative validation data, where they remain exploratory, and which methodological gaps should be prioritized in future multicenter studies. Full article
21 pages, 1928 KB  
Article
Biogenic Wall Systems for NZEB Single-Family Houses: Life-Cycle Carbon, Primary Energy Use and Architectural Implications
by Bartosz Dendura, Mateusz Budziakowski, Anna Bąk and Konrad Franczak
Buildings 2026, 16(9), 1803; https://doi.org/10.3390/buildings16091803 - 1 May 2026
Viewed by 537
Abstract
This study examines the environmental implications of envelope material choices for Nearly-Zero-Energy Building (NZEB) single-family houses in carbon-intensive energy contexts. Using a comparative Life Cycle Assessment (LCA) based on EN 15804+A2, a 100 m2 house was analysed over a 50-year lifespan across [...] Read more.
This study examines the environmental implications of envelope material choices for Nearly-Zero-Energy Building (NZEB) single-family houses in carbon-intensive energy contexts. Using a comparative Life Cycle Assessment (LCA) based on EN 15804+A2, a 100 m2 house was analysed over a 50-year lifespan across three archetypes: ceramic masonry (Design 1), solid log (Design 2), and timber–straw (Design 3). By maintaining a common steady-state thermal standard (U ≤ 0.20 W/(m2·K)) across all variants, the study provides a controlled comparison in which differences in GWP and non-renewable primary energy use primarily reflect material choices rather than insulation level. While both biogenic designs achieved negative embodied Global Warming Potential (GWP) in modules A1–A3 due to carbon sequestration, the results also show that structural concept and detailing strongly influence resource efficiency. Design 3 required substantially less timber volume than Design 2 while maintaining a comparable thermal standard and the lowest PENRT_A1–A3. Under the fixed operational assumptions adopted in this comparative study, module B6 remained the dominant single life-cycle contributor in all variants. The timber–straw system is therefore interpreted here as the more resource-efficient envelope strategy, whereas the solid-log solution primarily maximises timber-based carbon storage. Full article
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19 pages, 1044 KB  
Article
Evaluating Evaporative Cooling-Assisted Residential HVAC System Using Whole-Building Simulation
by Nelson Fumo, Xavier Martinez, Abel Euceda and Dylan Miller
Buildings 2026, 16(8), 1630; https://doi.org/10.3390/buildings16081630 - 21 Apr 2026
Viewed by 458
Abstract
This study evaluates the performance of evaporative cooling (EC)-assisted residential HVAC systems within the broader context of improving energy efficiency in U.S. housing. Using whole-building energy simulation in OpenStudio, a representative single-family house was analyzed across multiple climate zones under three configurations: (1) [...] Read more.
This study evaluates the performance of evaporative cooling (EC)-assisted residential HVAC systems within the broader context of improving energy efficiency in U.S. housing. Using whole-building energy simulation in OpenStudio, a representative single-family house was analyzed across multiple climate zones under three configurations: (1) a baseline air-source heat pump, (2) EC applied at the outdoor air intake, and (3) EC applied at the heat pump inlet. Annual energy use, indoor temperature and humidity, thermal comfort (PMV), water consumption, and economic performance were assessed. Results indicate that system configuration exerts a stronger influence on performance than climate variability. Specifically, the EC at the heat pump inlet configuration reduced annual energy consumption by up to 5.1%, whereas the EC at the outdoor air intake configuration yielded negligible or inconsistent savings (generally within ±1%). The heat pump inlet EC configuration consistently reduced annual energy consumption and showed favorable economic performance in 10 of 16 climate zones, whereas outdoor air intake configuration yielded limited energy savings and was not economically viable. Indoor temperature control remained stable across all cases, while relative humidity increased with EC operation but remained within acceptable limits under appropriate control strategies. The findings indicate that EC integration can improve residential HVAC performance when properly configured, with system placement and humidity control being critical determinants of effectiveness. Full article
(This article belongs to the Special Issue Building Energy Performance and Simulations)
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36 pages, 15117 KB  
Article
Assessing the Interaction Between Urban Heat Island Effects and Optimal Passive Design Strategies for Residential Buildings Across Moroccan Climatic Zones
by Hind El Mghari and Amine Allouhi
Sustainability 2026, 18(8), 4083; https://doi.org/10.3390/su18084083 - 20 Apr 2026
Cited by 1 | Viewed by 494
Abstract
This study investigates the impact of the Urban Heat Island (UHI) effect on building energy performance and the optimization of passive design strategies in six Moroccan climate zones: Agadir, Tangier, Fez, Ifrane, Marrakech, and Errachidia. A computer simulation approach combined with multi-objective optimization [...] Read more.
This study investigates the impact of the Urban Heat Island (UHI) effect on building energy performance and the optimization of passive design strategies in six Moroccan climate zones: Agadir, Tangier, Fez, Ifrane, Marrakech, and Errachidia. A computer simulation approach combined with multi-objective optimization using the NSGA-II algorithm was employed to improve energy efficiency while maintaining thermal comfort for a single-family house. The optimum solutions include several passive design parameters, such as insulation materials and thickness, glazing types, window-to-wall ratio (WWR), ventilation rates, shading devices, building orientation, and heating and cooling set point temperatures. The analysis was studied under both standard climate data and UHI scenarios to evaluate the impact of increased urban temperatures on building performance. The results show that under standard climate conditions, the optimal design can achieve up to 76% energy savings throughout all the climate zones, while Marrakech can save 67% and Errachidia 64%; however, under UHI scenarios, these energy savings dropped by 8–30% depending on the climate zone. For example, Agadir drops from 76% to 49% under a 5°C UHI scenario, and Marrakech drops from 67% to 56% under a 3.5 °C UHI scenario, highlighting the significant impact of urban overheating on buildings. These findings emphasize that integrating the UHI effect is essential for accurately assessing passive design performance and for ensuring that selected design solutions truly minimize energy consumption under realistic urban conditions, while also underscoring the importance of integrating passive design strategies into residential buildings. These strategies promote sustainable building practices in Morocco by reducing energy consumption and improving occupant thermal comfort. Full article
(This article belongs to the Special Issue Climate-Adaptive Strategies for Sustainable Urban Resilience)
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38 pages, 2385 KB  
Article
Towards Net-Zero Coastal Homes: Techno-Economic Optimization of a Hybrid Heat Pump, PV, and Battery Storage System in a Deeply Retrofitted Building in Poland
by Krzysztof Szczotka
Sustainability 2026, 18(7), 3618; https://doi.org/10.3390/su18073618 - 7 Apr 2026
Cited by 1 | Viewed by 1001
Abstract
The decarbonization of the residential sector is a critical component of the European Green Deal, particularly in transition economies like Poland. This study proposes a comprehensive techno-economic optimization of a deeply retrofitted single-family house aiming for net-zero energy building (NZEB) status. The research [...] Read more.
The decarbonization of the residential sector is a critical component of the European Green Deal, particularly in transition economies like Poland. This study proposes a comprehensive techno-economic optimization of a deeply retrofitted single-family house aiming for net-zero energy building (NZEB) status. The research specifically focuses on the Polish coastal climate zone, characterized by distinct humidity, wind, and temperature profiles compared to inland regions, which significantly influence the efficiency of air-to-water heat pumps (ASHP). Based on a real-world energy audit, the study simulates the synergy between a deep thermal envelope upgrade and a hybrid system comprising an ASHP, photovoltaics (PV), and battery energy storage (BES). This paper presents a detailed economic analysis of such hybrid systems under the new Polish ‘net-billing’ prosumer mechanism. The study evaluates the impact of electricity tariff structures (flat-rate G11 vs. time-of-use G12w) on the investment’s profitability. By calculating key performance indicators—including the levelized cost of energy (LCOE), net present value (NPV), and self-sufficiency ratio (SSR)—the research assesses various system configurations. The initial evaluation indicates that while deep retrofitting significantly reduces heating demand, integrating battery storage plays a critical role in enhancing economic returns under the net-billing framework. The analysis demonstrates that the optimized hybrid system (9.0 kWp PV + 10 kWh BESS) achieves an average annual self-sufficiency ratio (SSR) of 49.8% and reduces the non-renewable primary energy (EP) indicator to 0.0 kWh/(m2·year). Economically, the investment yields a positive NPV of €3194, an IRR of 5.25%, and a LCOE of €0.184/kWh, which is 34% lower than projected grid prices. Furthermore, switching to a time-of-use tariff (G12w) generates an additional 11% (€139) in annual savings. These quantitative findings provide actionable guidelines for policymakers and investors, confirming the financial viability and environmental benefit (annual reduction of 6.12 MgCO2) of NZEB standards in coastal areas. Full article
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19 pages, 1076 KB  
Article
Impact of Thermal Energy Storage on the Seasonal Performance of an Air-to-Water Heat Pump Under Real Microclimatic Conditions
by Matej Đuranović, Marija Živić, Ivan Batistić and Dražan Kozak
Buildings 2026, 16(7), 1432; https://doi.org/10.3390/buildings16071432 - 3 Apr 2026
Cited by 1 | Viewed by 596
Abstract
Air-to-water heat pumps (ASHPs) are a key technology for residential heating decarbonization; however, their seasonal performance is highly sensitive to outdoor temperature variability. Although thermal energy storage (TES) is widely recognized as a means of improving system efficiency, reported performance gains vary due [...] Read more.
Air-to-water heat pumps (ASHPs) are a key technology for residential heating decarbonization; however, their seasonal performance is highly sensitive to outdoor temperature variability. Although thermal energy storage (TES) is widely recognized as a means of improving system efficiency, reported performance gains vary due to differences in climatic datasets, control strategies, and modeling assumptions. This study presents a systematic multi-year assessment of the impact of a water-based TES tank on the seasonal performance of a residential ASHP under measured microclimatic conditions. Hourly simulations were conducted for a single-family house at three locations in eastern Croatia using eight years (2018–2025) of measured meteorological data. Building characteristics, system configuration, and operating strategy were kept identical to isolate the influence of storage volume. TES integration reduced annual electricity consumption by 4.8–9.1%, with a multi-year average reduction of 7.02%, and consistently increased the seasonal coefficient of performance (SCOP) across all analyzed years and locations. The highest relative improvements occurred under less favorable microclimatic conditions, emphasizing the importance of diurnal temperature distribution rather than seasonal averages alone. A parametric analysis identified an optimal storage volume of approximately 1000–1500 L when both energy and economic indicators are considered. The results demonstrate that stable and reproducible seasonal efficiency gains can be achieved through a simple, non-predictive operating strategy under continental climatic variability. Full article
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19 pages, 2943 KB  
Article
Effective Bio-Waste Recycling: Minimizing the Risk of Heavy Metal Emission
by Jakub Kostecki, Wojciech Dronia, Jacek Połomka and Andrzej Jędrczak
Sustainability 2026, 18(7), 3531; https://doi.org/10.3390/su18073531 - 3 Apr 2026
Cited by 1 | Viewed by 433
Abstract
The concepts of circular economy increase the need to recycle bio-waste. Effective implementation requires knowledge about associated risks and environmental concerns. This study examines the composition and heavy metal content of bio-waste from municipal waste in western Poland, considering waste type, location, and [...] Read more.
The concepts of circular economy increase the need to recycle bio-waste. Effective implementation requires knowledge about associated risks and environmental concerns. This study examines the composition and heavy metal content of bio-waste from municipal waste in western Poland, considering waste type, location, and season. Food waste constituted 36.7% to 47.6% of the total bio-waste, while garden waste accounted for 35.8% to 52.8%, with a strong seasonal dependency. Impurities such as plastics and glass were significant issues for urban and multi-family houses (16.6%), whereas rural and single-family home bio-waste had much lower impurity levels (10.0%). Heavy metals were identified in bio-waste, with the highest concentrations found in inedible food and garden waste. The ecological risk and cumulative effects of heavy metals were assessed using the contamination factor (CF), pollution index (PI), Nemerow Pollution Index (NPI), potential ecological risk index (Ef), and potential toxicity response index (RI). Urban bio-waste exhibited slightly higher levels of heavy metals and impurities compared to rural bio-waste. Zinc was the most abundant heavy metal, while cadmium had the lowest concentration. A seasonal pattern was observed, with winter bio-waste showing the lowest heavy metal concentrations. The results indicate that, despite localized elevated ecological risks, bio-waste recycling can be considered a conditionally safe waste management strategy, although localized and fraction-specific ecological risks, particularly related to cadmium and chromium, were identified. Full article
(This article belongs to the Special Issue Sustainable Waste Management and Recovery)
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26 pages, 5412 KB  
Article
Projected Climate Change Impacts on Rainwater Harvesting in Brazilian Single-Family Houses
by Igor Catão Martins Vaz, Andréa Teston, Eugénio Rodrigues, Enedir Ghisi, André Simões Ballarin and Abderraman Róger de Amorim Brandão
Water 2026, 18(7), 792; https://doi.org/10.3390/w18070792 - 27 Mar 2026
Viewed by 834
Abstract
Climate change is expected to impact rainfall amount, seasonality, and dry/wet patterns, with direct implications for rainwater harvesting systems. This study aims to quantify how future rainfall may affect rainwater harvesting systems across Brazil by combining multi-model climate projections with a daily water [...] Read more.
Climate change is expected to impact rainfall amount, seasonality, and dry/wet patterns, with direct implications for rainwater harvesting systems. This study aims to quantify how future rainfall may affect rainwater harvesting systems across Brazil by combining multi-model climate projections with a daily water balance model. A single-family social housing archetype (60 m2 roof area; four occupants; 150 L/day/person; non-potable demand equal to 30% of total demand) was simulated for 652 Brazilian cities, using bias-corrected daily rainfall from the CLIMBra dataset and nineteen climate models. Historical conditions were compared with near-future and far-future projections under the SSP2-4.5 and SSP5-8.5 scenarios. Historically, the greater potential for potable water savings has occurred in wetter, less seasonal climates, such as those in the North. In contrast, more seasonal and drought-prone areas, such as the Northeast, showed lower reliability. In future climates, most models indicate relative reductions in the potential for potable water savings in the North, Northeast, and Centre–West, with larger reductions under SSP5-8.5 and in the far-future scenarios. The South shows the most significant divergence between models and may increase the potential for potable water savings in some projections. On the other hand, in the South, the volume of rainwater harvesting system overflow increases under future scenarios. This work contributes to the literature by delivering a national-scale, multi-model, uncertainty-aware evaluation of rainwater harvesting performance under non-stationary rainfall regimes. Full article
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27 pages, 3406 KB  
Article
Animal Welfare Monitor: Raising the Bar for Species-Specific Welfare Evaluation Using Welfare Quality® Principles
by Amélie Romain, Léa Briard, Gwenaël Leroutier, Marine Parker, Baptiste Chenet, Constance Wagner, Alexandre Petry and Benoît Quintard
Animals 2026, 16(5), 842; https://doi.org/10.3390/ani16050842 - 7 Mar 2026
Viewed by 1069
Abstract
Assessing zoo animal welfare can involve generic evaluations or targeted, species-specific protocols. While the latter offer greater precision, their development is often limited by species diversity and the lack of validated indicators. The Animal Welfare Monitor® (AWM) protocol addresses these challenges by [...] Read more.
Assessing zoo animal welfare can involve generic evaluations or targeted, species-specific protocols. While the latter offer greater precision, their development is often limited by species diversity and the lack of validated indicators. The Animal Welfare Monitor® (AWM) protocol addresses these challenges by adapting Welfare Quality® principles to zoological contexts. Its core innovation is a four-level hierarchical structure (base, order, family, species) linking broad taxonomic knowledge to species-level protocols. This enables tailored questionnaires for each species, including data-deficient taxa, by leveraging information from related groups. Questionnaires, covering housing, nutrition, health, and behaviour, are complemented by behavioural observations. AWM currently covers 87 species (69 mammals, 15 birds, 2 amphibians, 1 reptile) and constitutes a substantial database of species-specific welfare assessment protocols embedded within a single, standardised methodological framework. Between 2021 and 2025, 14 zoos conducted over 1000 assessments and 15,000 behavioural observations, demonstrating the protocol’s feasibility in routine operations. AWM integrates data entry with visual documentation, such as photographs of enclosures or enrichment, which add context, enhance decision-making, and strengthen long-term records. While refinements such as group-level assessment remain, AWM offers a scalable, flexible tool combining scientific rigour with operational applicability, supporting positive welfare outcomes across diverse zoological institutions. Full article
(This article belongs to the Special Issue Best Practices for Zoo Animal Welfare Management)
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21 pages, 768 KB  
Article
The Environmental Impact of Reducing Heat Energy Losses Through External Brick Walls in Single-Family Houses
by Agnieszka Sobolewska, Marcin Bukowski and Janusz Majewski
Sustainability 2026, 18(5), 2580; https://doi.org/10.3390/su18052580 - 6 Mar 2026
Cited by 1 | Viewed by 696
Abstract
The use of appropriate thermal insulation is one of the fundamental methods for reducing a building’s energy demand. The article aims to assess the ecological effectiveness of reducing thermal energy losses through the external brick walls of a model single-family building. Environmental impacts [...] Read more.
The use of appropriate thermal insulation is one of the fundamental methods for reducing a building’s energy demand. The article aims to assess the ecological effectiveness of reducing thermal energy losses through the external brick walls of a model single-family building. Environmental impacts resulting from the use of three alternative heat sources (a condensing gas boiler, an oil boiler, and a brine-to-water heat pump) and two types of insulation materials (EPS with recycled material and mineral wool) were determined. Oil heating has the highest combined environmental impact (EUR 4.392). Using EPS as an insulating material generates a lower environmental impact compared to mineral wool (EUR 2.846 vs. EUR 3.775). The impact of climatic conditions was also considered, taking into account seven building locations that correspond to the diverse climatic conditions found in different regions of Poland. The obtained values indicate a clear impact of both the thickness of the thermal insulation layer and the building’s location on the amount of heat loss and, consequently, environmental costs. In locations with higher average annual outdoor temperatures, the determined heat losses are approximately 20% lower. The most significant environmental benefits are observed when switching from no insulation to 150–200 mm of insulation. The results indicate that the environmental benefits resulting from reduced heat losses achieved through the use of thermal insulation are quickly offset by the externalities associated with the production of the insulation. For a thickness of 50 mm, the benefit–cost ratio (B/C) ranges from 1.7 to 8.4, indicating that the environmental benefits achieved by reducing heat loss are approximately two to eight times greater than the costs associated with producing the material. The B/C ratio decreases with increasing insulation thickness, regardless of the building’s location and the type of heat source. As the thickness increases to 100 mm, the ratio drops to 1–5. In the temperate climate zone, where Poland and others UE’s countries are located, a 100–150 mm layer of insulation offers the best compromise between environmental benefits and environmental costs. The results demonstrate the validity of using building insulation and may serve as an argument in environmental policy for supporting it with budgetary funds in Poland and the European Union. Full article
(This article belongs to the Special Issue Energy Economics and Sustainable Environment)
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33 pages, 6966 KB  
Article
Decarbonizing Residential Stock in Southern Poland: A Technical Roadmap to NZEB Standards Based on a Retrofit Through HVAC Modernisation and Nature-Based Solutions
by Hanna Koshlak, Jerzy Zbigniew Piotrowski, Anna Stepien and Anita Ciosek
Appl. Sci. 2026, 16(4), 1986; https://doi.org/10.3390/app16041986 - 17 Feb 2026
Cited by 1 | Viewed by 662
Abstract
Decarbonising the existing residential sector is a central priority of European energy policy, yet masonry buildings from the early 2000s remain significantly underrepresented in net-zero energy building (NZEB) research. This study addresses this critical gap by evaluating a holistic deep retrofit of a [...] Read more.
Decarbonising the existing residential sector is a central priority of European energy policy, yet masonry buildings from the early 2000s remain significantly underrepresented in net-zero energy building (NZEB) research. This study addresses this critical gap by evaluating a holistic deep retrofit of a representative single-family house in Cracow, Poland, providing a scalable model for the Central European housing stock. The methodology integrated structural and systemic interventions: eliminating thermal bridges via balcony removal, enhancing the envelope with 0.25 m of mineral wool (λ = 0.036 W/m K), and installing innovative active triple-glazed windows (Uw = 0.85 W/m2 K) with integrated electric heating foils. The energy system was transformed by replacing a coal-fired boiler with an 8 kW air-to-water heat pump and a 7 kWp photovoltaic array, complemented by a green roof on the western pitch for passive thermal buffering. Verified results demonstrate a radical reduction in the non-renewable primary energy (EP) index from 224.56 kWh/(m2·a) to 0.00 kWh/(m2·a), achieving full compliance with stringent “WT 2021” standards. Economic analysis reveals that the integrated approach is financially viable, with a simple payback time (SPBT) of 7.1 years when supported by available subsidies. This study concludes that the integration of active glazing, high-performance insulation, and nature-based solutions offers a replicable and economically sound roadmap for transforming legacy housing into zero-emission assets. Full article
(This article belongs to the Special Issue Advancements in HVAC Technologies and Zero-Emission Buildings)
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