Jaqi Lee

Dr Jacquetta Lee

Reader in Sustainable Systems Analysis, Associate Director of the Practitioner Doctorate Programme in Sustainability
+44 (0)1483 689478
Part Time, 1 day per week

Academic and research departments

Centre for Environment and Sustainability.


University roles and responsibilities

  • Associate Director of the Practitioner Doctorate Programme in Sustainability

    Affiliations and memberships

    International Society for Industrial Ecology
    Immediate past Executive Secretary


    Research interests

    My teaching

    My publications


    Wilson G, Smalley G, Suckling JR, Lilley D, Lee J, Mawle R (2017) The hibernating mobile phone: Dead storage as a barrier to efficient electronic waste recovery,Waste Management60pp. 521-533 Elsevier
    Hibernation, the dead storage period when a mobile phone is still retained by the user at its end-of-life, is both a common and a significant barrier to the effective flow of time-sensitive stock value within a circular economic model. In this paper we present the findings of a survey of 181 mobile phone owners, aged between 18?25 years old, living and studying in the UK, which explored mobile phone ownership, reasons for hibernation, and replacement motives. This paper also outlines and implements a novel mechanism for quantifying the mean hibernation period based on the survey findings. The results show that only 33.70% of previously owned mobile phones were returned back into the system. The average duration of ownership of mobile phones kept and still in hibernation was 4 years 11 months, with average use and hibernation durations of 1 year 11 months, and 3 years respectively; on average, mobile phones that are kept by the user are hibernated for longer than they are ever actually used as primary devices. The results also indicate that mobile phone replacement is driven primarily by physical (technological, functional and absolute) obsolescence, with economic obsolescence, partly in response to the notion of being ?due an upgrade?, also featuring significantly. We also identify in this paper the concept of a secondary phone, a recently replaced phone that holds a different function for the user than their primary phone but is still valued and intentionally retained by the user, and which, we conclude, should be accounted for in any reverse logistics strategy.
    Lee J (2003) The potential offered ny aircraft and engine technologies, In: Upham P (eds.), Towards sustainable aviation10 Earthscan
    This comprehensive volume contains vital industry intelligence and foresight, making it an essential source of information for managers, consultants, regulators ...
    Khodabuccus R, Lee J (2016) A New Model for Designing Cost Effective Zero Carbon Homes: Minimizing Commercial Viability Issues and Improving the Economics for Both the Developer and Purchaser, Buildings6(6) MDPI AG
    There is a limited penetration of housing which offsets all operational carbon emissions within UK housing developer portfolios. This paper develops a balanced approach to zero carbon housing design from both architectural and national house builder perspectives. The paper discusses the techniques which can be used to reduce build costs, simplify designs and simplify renewable energy systems, resulting in more cost effective homes. The paper develops a technical and economic linked model to optimise a zero carbon design and then develops a home using this technique. It acknowledges that extra costs are inevitable but minimises them and details a lifecycle costing approach to provide economic justification. The paper then focuses on how the building designed can function more efficiently and economically than a Part L 2013 Building Regulation compliant building. Improved functionality is demonstrated both with and without the use of feed in tariffs. A key finding from this research is that zero carbon homes can benefit the consumer without impacting the developer. The results also demonstrate that homes could be better marketed on economic rather than environmental or technical attributes.
    Wilson GT, Bridgens B, Hobson K, Lee J, Lilley D, Scott JL, Suckling JR (2015) Single product, multi-lifetime components: challenges for product- service system development,pp. 394-400
    The rapid turnover in consumer electronics, fuelled by increased global consumption, has resulted in negative environmental and social consequences. Consumer electronics are typically disposed of into UK landfills; exported to developing countries; incinerated; retained in households in a redundant state; or otherwise 'lost' with very few being recycled. As a result, the high value metals they contain are not effectively recovered and new raw materials must be extracted to produce more goods. To assist in a transition from the current throw-away society towards a circular economy, the Closed Loop Emotionally Valuable E-waste Recovery (CLEVER) project is developing a novel Product-Service System (PSS). In the proposed PSS, component parts with 'low-emotional value', but requiring regular technical upgrade (such as circuit boards, chips and other electronic components) will be owned by manufacturers and leased to customers, and potentially ?high-emotional value? components (such as the outer casing) will be owned and valued by the customer so that they become products that are kept for longer periods of time. This research conceptualizes a consumer electronic device as comprising a 'skin' - the outer casing, or the part that the user interacts with directly; a 'skeleton' - the critical support components inside the device; and 'organs' - the high-tech electronics that deliver the product?s core functionality. Each of these has different longevity requirements and value-chain lifetimes, engendering different levels of stakeholder interaction. This paper contributes to academic debate by exploring the feasibility of creating a PSS which addresses conflicting issues for different components within the same device with different optimal lifetimes and end-of-life fates.
    Lee J (1995) Minimum Energy and Materials Consumption within Flow Systems and Life Cycle Analysis,
    Lee J, Keller E, Mila a Canals L, King H, Clift R (2013) Agri-food certification schemes: how do they address greenhouse gas (GHG) emissions,Greenhouse Gas Measurement and Management Taylor and Francis
    Lloyd S, Clifton A, Lee J, Elghali L, France C (2012) A framework for environmental risk management, AERONAUTICAL JOURNAL116(1183)pp. 941-961 ROYAL AERONAUTICAL SOC
    Mitchell J, Prescott M, Lee J, Velliou E, Bussemaker MJ (2016) Ultrasound-Enhanced Treatment of Pancreatic Cancer,
    Lee JJ (2006) Greener manufacturing, maintenance and disposal - Towards the ACARE targets,Aeronautical Journal110(1110)pp. 567-571
    This paper looks at how the aerospace industry can achieve the ACARE goal of greener manufacturing, maintenance and disposal. It looks further than merely reducing waste and eliminating hazardous materials and processes and suggests that the organisational structure of the industry will play an important role in facilitating a move towards such a goal. Greater co-operation or integration within the industry at all stages of the product life cycle chain is a fundamental requirement as individual companies run a risk of increasing the total environmental burdens if they concentrate solely on reducing their own impacts without considering the effect a change they make may have on other companies. The use of comprehensive environmental supply chain management systems and end of life plans can smooth the implementation of extended product responsibility and accelerate the benefits of greener manufacturing, maintenance and disposal.
    Suckling J, Lee J (2015) Redefining scope: the true environmental impact of smartphones?, International Journal of Life Cycle Assessment20(8)pp. 1181-1196
    © 2015, The Author(s).Purpose: The aim of this study is to explore the literature surrounding the environmental impact of mobile phones and the implications of moving from the current business model of selling, using and discarding phones to a product service system based upon a cloud service. The exploration of the impacts relating to this shift and subsequent change in scope is explored in relation to the life cycle profile of a typical smartphone. Methods: A literature study is conducted into the existing literature in order to define the characteristics of a ?typical? smartphone. Focus is given to greenhouse gas (GHG) emissions in different life cycle phases in line with that reported in the majority of literature. Usage patterns from literature are presented in order to show how a smartphone is increasingly responsible for not only data consumption but also data generation. The subsequent consequences of this for the balance of the life cycle phases are explored with the inclusion of wider elements in the potential expanded mobile infrastructure, such as servers and the network. Results and discussion: From the available literature, the manufacturing phase is shown to dominate the life cycle of a ?typical? smartphone for GHG emissions. Smartphone users are shown to be increasingly reliant upon the internet for provision of their communications. Adding a server into the scope of a smartphone is shown to increase the use phase impact from 8.5 to 18.0 kg CO2-eq, other phases are less affected. Addition of the network increases the use phase by another 24.7 kg CO2-eq. In addition, it is shown that take-back of mobile phones is not effective at present and that prompt return of the phones could result in reduction in impact by best reuse potential and further reduction in toxic emissions through inappropriate disposal. Conclusions: The way in which consumers interact with their phones is changing, leading to a system which is far more integrated with the internet. A product service system based upon a cloud service highlights the need for improved energy efficiency to make greatest reduction in GHG emissions in the use phase, and gives a mechanism to exploit residual value of the handsets by timely return of the phones, their components and recovery of materials.
    Parsons S, Murphy RJ, Lee J, Sims G (2015) Uncertainty communication in the environmental life cycle assessment of carbon nanotubes, International Journal of Nanotechnology12(8-9)pp. 620-630
    Copyright © 2015 Inderscience Enterprises Ltd.Amidst the great technological progress being made in the field of nanotechnology, we are confronted by both conventional and novel environmental challenges and opportunities. Several gaps exist in the present state of knowledge or experience with nanomaterials. Understanding and managing the uncertainties that these gaps cause in LCAs is essential. Traditionally used for more established technology systems, environmental LCA is now being applied to nanomaterials by policy-makers, researchers and industry. However, the aleatory (variability) and epistemic (system process) uncertainties in LCAs of nanomaterials need to be handled correctly and communicated in the analysis. Otherwise, the results risk being misinterpreted, misguiding decision-making processes and could lead to significant detrimental effects for industry, research and policy-making. Here, we review current life cycle assessment literature for carbon nanotubes, and identify the key sources of uncertainty that need to be taken into consideration. These include: the potential for non-equivalency between mass and toxicity (potentially requiring inventory and impact models to be adjusted); the use of proxy data to bridge gaps in inventory data; and the often very wide ranges in material performance, process energy and product lifetimes quoted.
    Arena N, Sinclair P, Lee J, Clift R (2016) Life cycle engineering of production, use and recovery of self-chilling beverage cans, Journal of Cleaner Production
    The chill-on-demand system is a new technology designed to provide cooled products on demand, thereby avoiding chilled storage. It uses the cooling effect provided by endothermic desorption of carbon dioxide previously adsorbed onto a bed of activated carbon and has the potential to be applied to any type of product that needs to be cold at the point of consumption. The principles of life cycle engineering have been utilized to evaluate the overall environmental performance of one possible application of this technology: a self-chilling beverage can, with a steel outer can to contain the beverage and an inner aluminium can to contain the adsorbent. An attributional life cycle assessment has been undertaken considering all the life cycle stages of a self-chilling can: manufacture of each part of the beverage container, its utilization, collection of the used can, and management of the waste by reuse, recycling and landfilling. Activated carbon production is included in detail, to assess its contribution to the overall life cycle. The results are compared with those for conventional aluminium and steel beverage cans stored in two types of retail chiller: a single door refrigerator and a large open-front cooler. A sensitivity analysis explores alternative scenarios for activated carbon production and for recovery of the can components post-use for reuse or recycling. The results highlight the importance of using activated carbon produced from biomass by a process with efficient use of low-carbon electrical energy, energy recovery from waste streams and appropriate air pollution control, and of achieving high rates of recovery, re-use and recycling of the cans after use. The results suggest limited markets into which the product might be introduced, particularly where it would displace inefficient chilled storage in an electricity system with a high proportion of coal-fired generation.
    Arena N, Lee J, Clift R (2016) Life Cycle Assessment of activated carbon production from coconut shells,JOURNAL OF CLEANER PRODUCTION125pp. 68-77 ELSEVIER SCI LTD
    Lee J, Keller E, Clift R, Mila a Canals L, King H (2014) Footprinting Farms, a comparison of three GHG calculators,Greenhouse Gas Measurement and Management
    Lee Jacquetta, Suckling James R., Lilley Debra, Wilson Garrath T. (2017) What is ?value? and how can we capture it from the product value chain?,In: Matsumoto Mitsutaka, Masui Keijiro, Fukushige Shinichi, Kondoh Shinsuke (eds.), Sustainability Through Innovation in Product Life Cycle Design(Part I)Part IIIpp. 297-313 Springer Singapore
    The mobile phone industry is based upon the rapid development of handsets and the high turnover of devices in order to drive sales. Phones are often used for shorter periods of time than their designed life, and when discarded it is often through channels that result in lost resource. This unsustainable business model places strain on resources and creates adverse environmental and social impacts. Through interrogation of a stock and flow model, a product-service system (PSS) for a small consumer electronic device, a mobile telephone, is proposed. The points at which value may be extracted from the PSS are identified. A quantitative measure of value is proposed in order to allow the evaluation of the most appropriate time to extract it. This value is not solely monetary, but is derived from the combination of indicators which encompass environmental, economic, and technological factors. A worked example is presented, in which it is found that the precious metals within the phone are the main determinants for value extraction. These metals are found in the printed circuit board, leading to a requirement to design phones for ease of extraction of these components in order to access the value within.
    Lee J (2002) Powertrain developments for passenger cars and light trucks for the next 10-15 years,
    Winnard J, Lee J, Skipp D, Adcroft A (2015) Finding Balanced Synergies - Putting Resilient Sustainability into Business and Technical Strategy,The IAFOR Academic Review1(8)pp. 18-30
    Lee J (2000) Sustainable Aviation - the way ahead,
    Lee J (2002) Integrating Design for Environment and Extended Product Responsibility,
    Lloyd S, Lee J, Elghali L, France C, Clifton A (2012) Recommendations for assessing materials criticality, Proceedings of Institution of Civil Engineers: Waste and Resource Management165(4)pp. 191-200
    This paper provides recommendations for assessing the criticality of materials (metals and non-fuel minerals), including the need for context-dependent assessment methods, providing a framework for conducting criticality assessments. Materials criticality captures concerns over the accessibility of materials, as the product of assessing a material's 'supply risk' and the impact of a supply restriction. Through a review of selected studies, problems with criticality assessments are discussed, highlighting how these become particularly important when the results of assessments are used in decision making. Considering how the results of criticality assessments are used in decision making highlights how criticality exhibits some of the characteristics of a 'complex context'. Building on predefined attributes of effective decision support in complex contexts, recommendations are made on how these problems can be addressed to better assess criticality in the future. These also include building on metric-based assessment methods by developing scenarios of future material supply and demand.
    Lee J, LLoyd S, Elghali L, Clifton A, France C (2011) Ecodesign through environmental risk management: A focus on critical materials,Proceedings of Ecodesign 2011: 7th International Symposium on environmentally conscious design and inverse manufacturingpp. 374-379
    Lee J, O'Callaghan P (1995) Critical Review of Life Cycle Analysis and Assessment Techniques and their Application to Commercial Activities, Resources Recycling and Conservation13pp. 37-56
    Clift R, Sim S, King H, Chenoweth JL, Christie IP, Clavreul J, Mueller C, Posthuma L, Boulay A, Chaplin-Kramer R, Chatterton J, DeClerck F, Druckman A, France CM, Franco A, Gerten D, Goedkoop M, Hauschild M, Huijbregts M, Koellner T, Lambin E, Lee J, Mair SJ, Marshall S, McLachlan M, Milà i Canals L, Mitchell C, Price E, Rockström J, Suckling JR, Murphy RJ (2017) The Challenges of Applying Planetary Boundaries as a Basis for Strategic Decision-Making in Companies with Global Supply Chains,Sustainability9(2) MDPI
    The Planetary Boundaries (PB) framework represents a significant advance in specifying the ecological constraints on human development. However, to enable decision-makers in business and public policy to respect these constraints in strategic planning, the PB framework needs to be developed to generate practical tools. With this objective in mind, we analyse the recent literature and highlight three major scientific and technical challenges in operationalizing the PB approach in decision-making: first, identification of thresholds or boundaries with associated metrics for different geographical scales; second, the need to frame approaches to allocate fair shares in the ?safe operating space? bounded by the PBs across the value chain and; third, the need for international bodies to co-ordinate the implementation of the measures needed to respect the Planetary Boundaries. For the first two of these challenges, we consider how they might be addressed for four PBs: climate change, freshwater use, biosphere integrity and chemical pollution and other novel entities. Four key opportunities are identified: (1) development of a common system of metrics that can be applied consistently at and across different scales; (2) setting ?distance from boundary? measures that can be applied at different scales; (3) development of global, preferably open-source, databases and models; and (4) advancing understanding of the interactions between the different PBs. Addressing the scientific and technical challenges in operationalizing the planetary boundaries needs be complemented with progress in addressing the equity and ethical issues in allocating the safe operating space between companies and sectors.
    Suckling JR, Lee J (2015) Redefining Scope: The True Environmental Impact of Smartphones?,International Journal of Life Cycle Assessment20(8)pp. 1181-1196 Springer
    Purpose: To explore the literature surrounding the environmental impact of mobile phones and the implications of moving from the current business model of selling, using and discarding phones to a product service system based upon a cloud service. The exploration of the impacts relating to this shift and subsequent change in scope is explored in relation to the life cycle profile of a typical smartphone. Methods: A literature study is conducted into the existing literature in order to define the characteristics of a ?typical? smartphone. Focus is given to greenhouse gas (GHG) emissions in different life cycle phases in line with that reported in the majority of literature. Usage patterns from literature are presented in order to show how a smartphone is increasingly responsible for not only data consumption, but also data generation. The subsequent consequences of this for the balance of the life cycle phases are explored with the inclusion of wider elements in the potential expanded mobile infrastructure, such as servers and the network. Result & Discussions: From the available literature the manufacturing phase is shown to dominate the life cycle of a ?typical? smartphone for GHG emissions. Smartphone users are shown to be increasingly reliant upon the internet for provision of their communications. Adding a server into the scope of a smartphone is shown to increase the use phase impact from 8.5 kgCO2-eq to 18.0 kgCO2-eq, other phases are less affected. Addition of the network increases the use phase by another 24.7 kgCO2-eq. In addition, it is shown that take-back of mobile phones is not effective at present and that prompt return of the phones could result in reduction in impact by best reuse potential and further reduction in toxic emissions through inappropriate disposal. Conclusions: The way in which consumers interact with their phones is changing, leading to a system which is far more integrated with the internet. A product service system based upon a cloud service highlights the need for improved energy efficiency to make greatest reduction in GHG emissions in the use phase, and gives a mechanism to exploit residual value of the handsets by timely return of the phones, their components and recovery of materials.
    Suckling J, Lee J (2017) Integrating Environmental and Social Life Cycle Assessment: Asking the Right Question,Journal of Industrial Ecology21(6)pp. 1454-1463 Wiley
    Mobile phones offer many potential social benefits throughout their lifetime, but this life is often much shorter than design intent. Reuse of the phone in a developing country allows these social benefits to be fully realized. Unfortunately, under the current state of development of recycling infrastructure, recovery rates of phones after reuse are very low in those markets, which may lead to an environmental burden due to loss of materials to landfill. In order to recover those materials most effectively, recycling in developed countries may be the best option, but at a cost of the ability to reuse the phones. The issues facing integration of social and environmental concerns into a single life cycle assessment and resulting challenges of identifying the disposal option with the most sustainable outcome are explored using mobile phones as a case study. These include obtaining sufficient geographical and temporal detail of the end of life options, the collation and analysis of the large amounts of data generated and the weighting of the disparate environmental and social impact categories. The numerous challenges may mount up to make performing life cycle assessment of mobile phones unwieldy. Instead of trying to encompass every aspect in full, it is proposed that focus is given to answering a question which takes into account the resources available: it is important to ask the question which has the best chance of being answered.
    Bridgens Ben, Hobson Kersty, Lilley Debra, Lee Jacquetta, Scott Janet L., Wilson Garrath T. (2017) Closing the Loop on E-waste: A Multidisciplinary Perspective,Journal of Industrial Ecology Wiley
    This paper describes the challenges faced, and opportunities identified, by a multidisciplinary team of researchers developing a novel closed loop system to recover valuable metals and reduce e-waste, focusing on mobile phones as a case study. This multidisciplinary approach is contrasted with current top-down approaches to making the transition to the circular economy (CE). The aim of the research presented here is to develop a product service system (PSS) that facilitates the recovery of valuable functional components and metals from mobile phone circuit boards. To create a holistic solution and limit unintended consequences, in addition to technological solutions, this paper considers appropriate component lifetimes; the (often ignored) role of the citizen in the circular economy; customer interaction with the PSS; environmental life cycle assessment; and social impacts of the proposed PSS. Development of enabling technologies and materials to facilitate recovery of components and metals and to provide an emotionally durable external enclosure is described. This research also highlights the importance of understanding value in the CE from a multifaceted and interdisciplinary perspective.
    Miah A, Morse S, Goddin J, Moore G, Morris K, Rogers J, Delay-Saunders I, Clifton A, Lee J (2017) Towards Standardising Methods for Reporting the Embodied Energy Content of Aerospace Products,SAE International Journal of Aerospace10(1)pp. 22-31 SAE International
    Within the aerospace industry there is a growing interest in evaluating and reducing the environmental impacts of products and related risks to business. Consequently, requests from governments, customers, manufacturers, and other interested stakeholders, for environmental information about aerospace products are becoming widespread. Presently, requests are inconsistent and this limits the ability of the aerospace industry to meet the informational needs of various stakeholders and reduce the environmental impacts of their products in a cost-effective manner. Energy consumption is a significant business cost, risk, and a simple proxy value for overall environmental impact. This paper presents the initial research carried out by an academic and industry consortium to develop standardised methods for calculating and reporting the embodied manufacturing energy content of aerospace products. Following an action research approach, three potential methods are identified and applied in a real manufacturing environment. Suitability for use across the aerospace value chain is assessed. The benefits, implementations issues, areas of data uncertainty, and differences in results are outlined. Results show companies could be over/under reporting the embodied manufacturing energy content of parts by a factor of 10. The subsequent business and EU policy implications for industry reporting and evaluating product risks are discussed. The paper concludes the novel research outcomes will be valuable to businesses and other interested stakeholders seeking to report or understand the embodied energy content of aerospace products and associated data uncertainty, as well as inform the development of future industry standards.
    Arena N, Alpay Esat, Kirkby Norman, Lee Jacquetta, Clift R (2017) An on demand chilling system: Activated carbon based desorptive cooling,Journal of Cleaner Production176pp. 937-945 Elsevier
    Every year in Europe refrigerant gases with a greenhouse-warming equivalent of more than 30 Mt CO2 are emitted from retail refrigerators. Furthermore, the effective efficiency of such refrigerators is far below that achievable under ideal (e.g. optimal-load; minimum access) operation. In this work the design of an alternative on-demand cooling unit is presented. The unit is based on the cooling effect provided by desorption of carbon dioxide previously adsorbed onto a bed of graphite-bonded activated carbon: in this paper, a case study of a self-chilling beverage can is used to demonstrate the technology. The high compaction of the activated carbon, and the presence of graphite, enhances the heat transfer properties of the adsorbent, thus enhancing the efficiency of cooling. Furthermore, potential exists for the use of activated carbon and CO2 from waste sources. This paper provides an overview of the design basis and environmental advantages of the unit, and experimental and simulation studies on the thermal dynamics of the cooling process. Particular attention is given to the effective thermal conductivity of the activated carbon bed. The results indicate that adequate on-demand cooling can be achieved within a portable unit. However, scope exists for enhancing the heat transfer within the cooling chamber through design and bed composition alterations. Recommendations for improved unit design are presented.
    Russell E, Lee J, Clift R (2018) Can the SDGs Provide a Basis for Supply Chain Decisions in the Construction Sector?,Sustainability10(3)629 MDPI
    The Construction sector is characterised by complex supply networks delivering unique end products over short time scales. Sustainability has increased in importance but continues to be difficult to implement in this sector; thus, new approaches and practices are needed. This paper reports an empirical investigation into the value of the UN Sustainable Development Goals (SDGs), especially Sustainable Consumption and Production (SDG12), when used as a framework for action by organisations to drive change towards sustainability in global supply networks. Through inductive research, two different and contrasting approaches to improving the sustainability of supply networks have been revealed. One approach focuses on the ?bottom up? ethical approach typified by the Forest Stewardship Council (FSC) certification of timber products, and the other on ?top-down? regulations exemplified by the UK Modern Slavery Act. In an industry noted for complex supply networks and characterised by adversarial relationships, the findings suggest that, in the long term, promoting shared values aligned with transparent, third-party monitoring will be more effective than imposing standards through legislation and regulation in supporting sustainable consumption and production.
    Within the aerospace, defence, space, and security (ADS) industries, there is a growing reporting requirement and interest in understanding and reducing the environmental impacts of products and related risks to business. This dissertation presents the research carried out in collaboration with six ADS companies (ADS Group, Airbus Group, BAE Systems, Bombardier Aerospace, Granta Design, and Rolls-Royce) to establish industry methods for consistently measuring and reporting two pre-selected product-based environmental indicators identified as important to the industry: energy consumption and access to resources. Following an action research approach, four potential methods for calculating and reporting the manufacturing energy footprint of ADS products were identified and industry tested on three case study parts selected by Airbus Group, Bombardier Aerospace, and Rolls-Royce. Methods tested were: (1) Direct measurement, (2) Theoretical calculation, (3) Facility level allocation of energy consumption (based on annual production hours, quantity, and weight of parts manufactured), and (4) Approximation based on generic data. Method 3 (Production Hours) was found to be the most suitable ?single? method for immediately reporting the manufacturing energy footprint of parts as it was quick to implement and based on widely available industry data. Regarding the comparability of methods, methods were found to be incomparable and produce significantly different results when applied to calculate the manufacturing energy footprint of the same part. Differences in the comparison of two methods could be in the order of one magnitude based on findings. Such large differences are significant for understanding energy use/costs, environmental impacts (e.g. carbon footprint), and reliably reporting and comparing information for informing decisions. Therefore, methods for calculating the manufacturing energy footprint of products cannot be assumed to be interchangeable and stacked in LCAs, EPDs, and other standards. These findings challenge current LCA practices and the interpretation of product-based environmental declarations if multiple methods have been used and results stacked. Thus, existing standards and growing product-orientated environmental polices allowing for the use of multiple methods (e.g. EPDs and PEFs) may indeed proliferate incomparability rather than engender comparability. Regarding approximating product energy footprints using generic data, the research was only able to approximate the machining energy consumption associated with the case study parts because of data gaps in the generic database. However, a high comparability between generic data use and direct measurement (i.e. specific/primary data) was found. These limited findings challenge attitudes towards generic data use and indicate potential scope to replace expensive primary data collection with more cost-effective (and similarly accurate) generic data. With regards to proposing a method for measuring the access to resources (A2R) product-based environmental indicator, several supply risk indicators and methodological choices for measuring the indicator were identified. Methodological choices included decisions such as to normalise and aggregate supply risk indicators into a single score. A workshop with the industry consortium was consequently carried out to explore and agree: (1) what indicators should be selected to appropriately measure A2R, and (2) how the selected indicators should be measured. Out of 18 potential supply risk indicators, five were identified as key: conflict material risk, environmental country risk, price volatility risk, sourcing and geopolitical risk, and monopoly of supply risk were selected because of clear links to legislation, use of reliable data, and effect on material prices. Regarding methodological choices for measuring A2R, the industry consortium preferred to avoid normalising and aggregating indicators to prevent masking
    This study focuses on British Sustainability-inspired Business Startups (SiBS) from two sectors of the creative industry: fashion clothing and gifts. These two sectors are some of those that motivate most entrepreneurship, by using distinct elements of business models to attract their consumers. While price and style have led consumers to look for products with short lifespans, reducing sustainability impact is a growing concern in the fashion clothing and gifts sectors, what motivates some sustainable initiatives to be taken in place. However, although some sustainable initiatives have emerged, there is no clear understanding of how they are based in the business drivers or in the business models, and if these initiatives are contributing to startups to succeed. This research aims to provide new understanding of the role of sustainability in the business startups from the fashion clothing and gifts sectors which offer manufactured green products. In order to narrow the presenting study, specific research questions are: What are the drivers of SiBS and do they differ from generic-mainstream startups? What business models are adopted by SiBS, how and why? and What are the factors affecting the longevity of the startups investigated and why? Case study method was chosen to allow in-depth investigation and analyses of multiple variables in each startup investigated. Then, qualitative data from each startup was collected by different sources: interviews, direct observation and documentation. The use of multiple sources of evidence allowed triangulation between data collected. Fifteen British startups were examined, covering generic-mainstream and SiBS, business lifetimes up to ten years, and two sectors in the experimental group (fashion clothing, with four startups; and gifts, with six startups) and one sector in the control group (energy, with five startups). Data analysis consisted of within-case study and multi-case study. In-depth investigation provided richness of information from each startup and the identification of similarities and differences between groups of startups investigated. Accordingly, the findings of this research suggest that: Regarding business drivers, startups in the gifts and fashion clothing sectors are more motivated by lifestyle and less motivated by money than energy firms; Also, SiBS are driven by the founder?s motivation when aiming to incorporate sustainability aspects into their business activities, while generic- mainstream startups are driven by money with focus on profits; Regarding business models, iii SiBS prioritise environmental and social issues as main elements of their business models; Furthermore, business models do not really change throughout the growth of startups; Regarding business longevity, most startups in the gifts and fashion clothing sectors do not have clear financial strategies but this is commonly clear in the energy firms. Important differences in outlook between different groups and types of business startups (generic-mainstream and SiBS) investigated in this study lead to the conclusion that: The awareness of two financial aspects (financial literacy and financial importance) provide an opportunity to increase chances of success in the early days of SiBS; The dissemination of the types of business models innovation for sustainability may motivate the development of more sustainable practices into the SiBS operations; And the emphasis on sustainability in business startups, either as through the business drivers or the business models adopted, is a central and long-term strategy that may increase the significance, the number and the importance of SiBS.
    Winnard J, Lee Jacquetta, Skipp D (2018) Putting resilient sustainability into strategy decisions - case studies,Management Decision56(7)pp. 1598-1612 Emerald

    The purpose of this paper is to report the results of testing a new approach to strategic sustainability and resilience ? Sustainable Resilient Strategic Decision-Support (SuReSDS").


    The approach was developed and tested using action-research case studies at industrial companies. It successfully allowed the participants to capture different types of value affected by their choices, optimise each strategy?s resilience against different future scenarios and compare the results to find a ?best? option.


    SuReSDS" enabled a novel integration of environmental and social sustainability into strategy by considering significant risks or opportunities for an enhanced group of stakeholders. It assisted users to identify and manage risks from different kinds of sustainability-related uncertainty by applying resilience techniques. Users incorporated insights into real-world strategies.

    Research limitations/implications

    Since the case studies and test organisations are limited in number, generalisation from the results is difficult and requires further research.

    Practical implications

    The approach enables companies to utilise in-house and external experts more effectively to develop sustainable and resilient strategies.


    The research described develops theories linking sustainability and resilience for organisations, particularly for strategy, to provide a new consistent, rigorous and flexible approach for applying these theories. The approach has been tested successfully and benefited real-world strategy decisions.

    Chen Xiaobo, Lee Jacquetta (2019) How to create a business relevant LCA,In: Hu Allen H, Matsumoto Mitsutaka, Kuo Tsai Chi, Smith Shana (eds.), Technologies and Eco-innovation towards Sustainability I: Eco Design of Products and Services1pp. 287-298 Springer
    Facing issues related to innovative production and public requirement in sustainability, companies expect to develop an effective tool to integrate environmental aspects into their business strategies at product design stage. Although life cycle assessment is commonly used to evaluate the environmental impacts of products or services, it is time consuming, expensive and may produce irrelevant information for business decision making. Eco-design approach, as alternative, requires less efforts for data acquisition and evaluation, and utilises a wide range of indicators that meet business demand. This study develops a matrix-based tool to capture environmental information related to business according to industry engagement. This life cycle thinking-based approach focuses on more relevant environmental information, and provides effectively data to support business strategy. In addition, this approach is practical and flexible to be used at the early design stage where data capture is generally difficult. Finally, it helps the managers to identify data gaps, so that it stimulates further investments in searching more targeted data.
    Driven by increased urbanisation, construction of buildings and infrastructure continues to grow worldwide, further exacerbating the social and environmental impacts created by this sector. Large scale projects, requiring thousands of component parts and globally sourced materials, flow across supply networks to construct built assets. Embodied within these supply networks are minerals, energy, water, labour, waste, modern slavery and other human rights abuses. This thesis focuses on the UK construction industry and the ability of the main contractor, a key procurer of materials and manager of the build process, to affect the sustainability of the final asset. This research is case study based on unprecedented access to staff and key suppliers of a major UK main contractor, Carillion plc. The work is an holistic approach to sustainability, incorporating both social and environmental lifecycle thinking, sustainable supply chain theory, and the fields of stakeholder and collaborative working. Applying grounded theory methodology, four major themes emerge from this inductive research; fragmentation, the role of focal nodes, inter- and intra-company collaboration and knowledge of sustainability. Set within the context of a lifecycle perspective they define the ability of the main contractor to directly implement or influence sustainable build. The research develops theory uniting economic equity, network actor perspective and life stage impacts. The findings demonstrate that operating within current unsustainable business models the main contractor can only play a bit role. Additionally, it provides the basis for recommendations on business model, policy and process change.
    There is increasing concern over the climate change impact of games consoles. There is, however, little research on the life cycle carbon impact of consoles and existing research (the majority of which is focused on usage) is outdated. This study uses life cycle assessment (LCA) methodology to compare the climate change impact of different console-based gaming methods (i.e. games played from a disc, a down-loaded file, or streamed from the cloud). Console usage and Internet usage were identified as life cycle stages where data were unknown or uncertain. Two studies to improve the understanding of these areas were undertaken in this research and used to complete a cradle-to-grave carbon footprint study of gaming (compared using a functional unit of carbon equivalent emissions per hour of gameplay). Results estimated that, for average cases, download is the lowest carbon method of gaming at 0.047 kgCO2e/h, followed by disc at 0.055 kgCO2e/h. Cloud gaming has higher estimated carbon emissions at 0.149 kgCO2e/h, largely due to the additional energy consumed during use in the Internet, gaming servers, and home router equip-ment. These findings only represent average cases and the size of game files and length of gameplay time were found to be key variables significantly impacting the results. For example, for games played for under 8 hours, cloud gaming was found to have lower carbon emissions than downloads (up to 24 hours when compared to disc). In order to analyse these results, a new method for identifying which gaming method has the lowest carbon emissions with variation in both file size and gameplay time was developed. This has allowed for the identification of the thresholds in which different gaming methods have lowest carbon emissions, for any given range of input variables. The carbon emissions of gaming are highly dependent on consumer behav-iour (which game method is used, how long games are played for, and the type and size of those games) and therefore LCA based on average assumptions for these variables has limited application.
    Municipal waste production is one of the most widely recognised environmental issues in society today. In the UK, households are responsible for generating millions of tonnes of waste materials each year, with food waste proving to be a particularly problematic waste stream. Local authorities, who are responsible for waste management, have historically relied on changes to physical infrastructure or informational interventions to drive performance improvements. However, in times of increasing financial pressures, there has been a growing recognition that the transition to a sustainable, resilient and resourceful society will require fundamental changes to the way people think and behave. Indeed, what connects many modern-day sustainability challenges are their roots in human behaviour. While various ?tools of government? can be employed to realise strategic public policy objectives, emergent localism and the apparent ineffectiveness of this traditional approach catalysed a shift towards ensuring that statutory requirements were delivered more efficiently than ever before. This led to a widespread application of ?insights?, synthesised from behavioural sciences, to inform the design, implementation and evaluation of new policy interventions. Enthusiasm to the so-called ?nudge? approach, which recognises that behaviour can be strongly and automatically influenced by the context in which it is situated, soon trickled down to local government, creating a growing appetite for the approach. These collective ?behavioural insights? provided local authorities with a powerful new set of policy tools that, if used correctly, could be used to influence waste behaviours. This research explored their application by evaluating the efficacy and affordability of those nudges that could feasibly be introduced at scale by local authority practitioners to produce a positive and sustained influence on household food waste recycling behaviour. By adopting a mixed-methods approach it was shown that, by making simple changes to the existing ?choice environment? in Surrey, it was possible to ?nudge? households towards engaging (more) in food waste recycling behaviour. Further, it was found that prompt-based nudges, using stickers as the medium of delivery, were particularly effective, with effects persisting for far longer than has typically been achieved using more ?traditional? informational policy interventions. While popular, the practice of ?nudging? has a range of issues, both conceptual and controversial, so it is important for policymakers to be aware of the differing philosophies, efficacy, methodologies and ethics associated with these types of intervention. While nudges may not be the ?silver bullet?, it is argued that they are, at least for now, useful devices for policymakers to have in their ?toolkit?.
    Lafratta Mauro, Thorpe Rex B., Ouki Sabeha K., Shana Achame, Germain Eve, Willcocks Mark, Lee Jacquetta (2020) Dynamic biogas production from anaerobic digestion of sewage sludge for on-demand electricity generation,Bioresource Technology310123415 Elsevier

    The aim of this work was to study the potentials and benefits of dynamic biogas production from Anaerobic Digestion (AD) of sewage sludge. The biogas production rate was aimed to match the flexible demand for electricity generation and so appropriate feeding regimes were calculated and tested in both pilot and demonstration scale.

    The results demonstrate that flexibilization capability exists for both conventional AD and advanced AD using Thermal Hydrolysis Process (THP) as pre-treatment. Whilst the former provides lower capability, flexible biogas production was achieved by the latter, as it provides a quick response. In all scenarios, the value of the biogas converted into electricity is higher than with a steady operational regime, increasing by 3.6% on average (up to 5.0%) in conventional and by 4.8% on average (up to 7.1%) with THP. The process has proven scalable up to 18m3 digester capacity in operational conditions like those in full scale.