Life Cycle Assessment

Author(s):  
Ralph E Horne ◽  
Tim Grant ◽  
Karli Verghese

Life Cycle Assessment (LCA) has developed in Australia over the last 20 years into a technique for systematically identifying the resource flows and environmental impacts associated with the provision of products and services. Interest in LCA has accelerated alongside growing demand to assess and reduce greenhouse gas emissions across different manufacturing and service sectors. Life Cycle Assessment focuses on the reflective practice of LCA, and provides critical insight into the technique and how it can be used as a problem-solving tool. It describes the distinctive strengths and limitations of LCA, with an emphasis on practice in Australia, as well as the application of LCA in waste management, the built environment, water and agriculture. Supported by examples and case studies, each chapter investigates contemporary challenges for environmental assessment and performance improvement in these key sectors. LCA methodologies are compared to the emerging climate change mitigation policy and practice techniques, and the uptake of ‘quick’ LCA and management tools are considered in the light of current and changing environmental agendas. The authors also debate the future prospects for LCA technique and applications.

2021 ◽  
Vol 99 (Supplement_1) ◽  
pp. 24-25
Author(s):  
Agbee L Kpogo ◽  
Jismol Jose ◽  
Josiane Panisson ◽  
Bernardo Predicala ◽  
Alvin Alvarado ◽  
...  

Abstract The impact of feeding growing pigs with high wheat millrun diets on the global warming potential (GWP) of pork production was investigated. In study 1, a 2 × 2 factorial arrangement of wheat millrun (0 or 30%) and multi-carbohydrase enzyme (0 or 1 mg kg-1) as main effects was utilized. For each of 16 reps, 6 pigs (60.2±2.2 kg BW) were housed in environmental chambers for 14d. Air samples were collected and analyzed for carbon dioxide (CO2); nitrous oxide (N2O); and methane (CH4). In study 2, data from study 1 and performance data obtained from a previous feeding trial were utilized in a life cycle assessment (LCA) framework that included feed production. The Holos farm model (Agriculture and Agri-Food Canada, Lethbridge. AB) was used to estimate emissions from feed production. In study 1, total manure output from pigs fed 30% wheat millrun diets was 30% greater than pigs on the 0% wheat millrun diets (P < 0.05), however, Feeding diets with 30% millrun did not affect greenhouse gas (GHG) output (CH4, 4.7, 4.9; N2O, 0.45, 0.42; CO2, 1610, 1711; mg s-1 without or with millrun inclusion, respectively; P > 0.78). Enzyme supplementation had no effect on GHG production (CH4, 4.5, 5.1; N2O, 0.46, 0.42; CO2, 1808, 1513; mg s-1 without or with enzymes, respectively; P > 0.51). In study 2, the LCA indicated that the inclusion of 30% wheat millrun in diets for growing pigs resulted in approximately a 25% reduction in GWP when compared to the no wheat millrun diets. Our results demonstrate that 30% wheat millrun did not increase GHG output from the pigs, and thus the inclusion of wheat millrun in diets of growing pigs can reduce the GWP of pork production.


2021 ◽  
Vol 29 (4) ◽  
pp. 2189-2205
Author(s):  
Natasha Ashvinee Rajendran ◽  
Quiena Lia Anak Jimi ◽  
Amir Hamzah Sharaai

The ability to enhance environmental performance has emerged as a pivotal corporate strategy for businesses in Malaysia. While the ISO 14001:2015 has been promoted extensively by the Malaysian Department of Standards, its adoption remains low and at a slow pace. There is scarce research to demonstrate the linkage between environmental knowledge, the implementation of life cycle management tools and environmental performance. Therefore, the first aim of this study is to assess the different knowledge levels of respondents on ISO 14001:2015 and four assessment methodologies (i.e., Life Cycle Assessment, Carbon Footprint, Water Footprint, and Material Flow Cycle Accounting). The second aim is to determine whether these knowledge bases contribute to the firms’ environmental performance. A total of 157 ISO-certified firm owners responded to the self-administered questionnaires. A One-Way ANOVA test revealed a difference in knowledge levels, with Life Cycle Assessment having the highest score and Material Flow Cycle Accounting having the lowest. Multiple regression revealed ISO 14001, Material Flow Cycle Accounting, and Carbon Footprint knowledge to contribute to environmental performance significantly. Counterintuitively, Life Cycle Assessment and Water Footprint exerted no significance on environmental performance. Policy implications include information dissemination and training by governmental officials for firm owners and exposure to life cycle management tools.


2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Jan Mikolaj ◽  
Frantisek Schlosser ◽  
Lubos Remek ◽  
Aurelia Chytcakova

Design of asphalt concrete, required properties of constituent materials and their mixing ratios, is of tremendous significance and should be implemented with consideration given to the whole life cycle of those materials and the final construction. Conformity with requirements for long term performance of embedded materials is the general objective of the Life Cycle Assessment (LCA). Therefore, within the assessment, material properties need to be evaluated with consideration given to the whole service life—from the point of embedding in the construction until their disposal or recycling. The evaluation focuses on verification of conformity with criteria set for these materials and should guarantee serviceability and performance during their whole service life. Recycling and reuse of asphalt concrete should be preferred over disposal of the material. This paper presents methodology for LCA of asphalt concrete. It was created to ensure not only applicability of the materials in the initial stage, at the point of their embedding, but their suitability in terms of normatively prescribed service performance of the final construction. Methods described and results are presented in a case study for asphalt mixture AC 11; I design.


Author(s):  
Amir Hamzah Sharaai ◽  
Sitty Nur Syafa Bakri ◽  
Saidah Md Said

Penilaian Kitar Hayat (LCA) merupakan salah satu alat pengurusan alam sekitar. Terdapat beberapa alat pengurusan alam sekitar lain yang mirip dengan LCA yang menimbulkan kekeliruan di kalangan pengamalnya. Bagi merungkaikan permasalahan tersebut, satu analisis terhadap setiap alat dihuraikan berdasarkan 3 aspek, iaitu umum, kontekstual dan kaedah. Hasil analisis ini mendapati LCA diguna pakai dalam beberapa alat pengurusan bagi mencapai matlamat pendekatan tersebut. LCA dan alat pengurusan alam sekitar yang lain juga diperlukan bagi mencapai kelestarian alam sekitar. Data yang komprehensif dan mencukupi amat perlu bagi semua alat pengurusan alam sekitar agar objektif setiap alat tercapai. Kata kunci: Pembangunan mapan; penilaian kitar hayat (LCA); pendekatan pengurusan alam sekitar; alat-alat pengurusan alam sekitar Life Cycle Assessment (LCA) is part of environmental management tools. Other tools have similarity with the LCA that cause confusion to practitioners. An analysis has been carried out to overcome this matter. The analysis is described based on three aspects: general, contextual and method. The analysis show that LCA is used in several management tools to achieve the goal of the approaches. LCA and other environmental management approaches are also essential for sustainable environment. The comprehensive and sufficient data are necessary to all environment management tools in order to ensure the objective from each tools are achieved. Key words: Sustainable development; life cycle assessment (LCA); environmental management approaches; environmental management tools


Author(s):  
Gabriella Arcese ◽  
Marzia Traverso

The coronavirus pandemic has affected all production and service sectors. The crisis has led to the increased awareness of the fragility and vulnerability of our societies and our lifestyles. The speed at which it spreads has led first to a change of our behavior and our way of life but at the same time, it has also changed the way we consider our buildings and how we live in them. Considering the new visions aimed at sharing spaces, such as those of work with the coworking spaces or frontal lessons in the classroom, they must now be rethought. In tourism and catering, relations with customers are reviewed and public transport is radically rethought. In this context, the concept of resilience plays a key role. How resistant are we and our environment to crises like COVID-19? What is the significance of resilience in sustainability? Is there a link between the assessment of resilience and life cycle assessment? In this paper is represented a general framework to connect resilience and sustainability assessments.


Environments ◽  
2021 ◽  
Vol 8 (2) ◽  
pp. 10
Author(s):  
Selim Karkour ◽  
Safa Rachid ◽  
Mariem Maaoui ◽  
Chia-Chun Lin ◽  
Norihiro Itsubo

Life cycle assessment (LCA) has received attention as a tool to evaluate the environmental impacts of products and services. In the last 20 years, research on the topic has increased, and now more than 25,000 articles are related to LCA in scientific journals databases such as the Scopus database; however, the concept is relatively new in Africa, where the number of networks has been highlighted to be very low when compared to the other regions. This paper focuses on a review of life cycle assessments conducted in Africa over the last 20 years. It aims at highlighting the current research gap for African LCA. A total of 199 papers were found for the whole continent; this number is lower than that for both Japan and Germany (more than 400 articles each) and nearly equal to developing countries such as Thailand. Agriculture is the sector which received the most attention, representing 53 articles, followed by electricity and energy (60 articles for the two sectors). South Africa (43), Egypt (23), and Tunisia (19) were the countries where most of the research was conducted. Even if the number of articles related to LCA have increased in recent years, many steps still remain. For example, establishing a specific life cycle inventory (LCI) database for African countries or a targeted ideal life cycle impact assessment (LCIA) method. Several African key sectors could also be assessed further.


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