Julian M Allwood
Biographic Data
| ID | 5810434 |
|---|---|
| NAME | Julian M Allwood |
| GIVEN NAMES | Julian M |
| FAMILY NAME | Allwood |
| SIGNATURE | ALLWOOD J M |
| AFFILIATIONS | University of Cambridge |
| ORCID | 0000-0003-0931-3831 |
| VERIFIED | Yes |
| TOTAL WORKS | 15 |
| TOTAL CITATIONS | 16 |
| AUTHOR COUNT | 15 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2001 |
| LATEST PUBLICATION YEAR | 2025 |
| H-INDEX | 3 |
The gap between discourse and action in the United Kingdom: Exploring the weakness of climate action in the post-Covid political space
The post-pandemic recovery saw global attention given to the idea that we could Build Back Greener . In the UK, despite a similar narrative emerging, the government has failed to deliver decarbonisation policy in line with the country's targets. Following an initial wave of attention, the period from 2023 to (July) 2024 saw a backsliding in existing climate policy and rhetoric. This work explores why the UK government failed to translate ambitiou…
Modelling the embodied carbon cost of UK domestic building construction: Today to 2050
Technology to the rescue? Techno-scientific practices in the United Kingdom Net Zero Strategy and their role in locking in high energy decarbonisation pathways
The development of country specific decarbonisation pathways is becoming increasingly common as more governments commit to achieving Net Zero. These pathways are critical for setting the direction and pace of decarbonisation. This article reviews the characteristics of fifteen different UK Net Zero pathways (three government pathways and 12 additional pathways) and shows how the expectation of technology innovation and low-carbon energy abundance…
International risk of food insecurity and mass mortality in a runaway global warming scenario
Climate and agriculture have played an interconnected role in the rise and fall of historical civilizations. Our modern food system, based on open-environment production and globalised supply chains, is vulnerable to a litany of abiotic and biotic stressors exacerbated by anthropogenic climate change. Despite this evidence, greenhouse gas emissions continue to rise. Current trajectories suggest global warming of ∼2.0–4.9 °C by 2100, however, a wo…
Technology or behaviour? Balanced disruption in the race to net zero emissions
Comparing energy and material efficiency rebound effects: An exploration of scenarios in the GEM-E3 macroeconomic model
Incremental Material Flow Analysis with Bayesian Inference
Material flow analysis (MFA) is widely used to study the life cycles of materials from production, through use, to reuse, recycling, or disposal, in order to identify environmental impacts and opportunities to address them. However, development of this type of analysis is often constrained by limited data, which may be uncertain, contradictory, missing, or over‐aggregated. This article proposes a Bayesian approach, in which uncertain knowledge ab…
A General Nonlinear Least Squares Data Reconciliation and Estimation Method for Material Flow Analysis
The extraction, transformation, use, and disposal of materials can be represented by directed, weighted networks, known in the material flow analysis (MFA) community as Sankey or flow diagrams. However, the construction of such networks is dependent on data that are often scarce, conflicting, or do not directly map onto a Sankey diagram. By formalizing the forms of data entry, a nonlinear constrained optimization program for data estimation and r…
Questioning demand: A study of regretted purchases in Great Britain
This paper presents findings from a nationally representative household survey on the tendency to regret purchases across 20 product groups. The survey reveals that the vast majority of adults in Great Britain (82%) have regretted a purchase in the past. Post-purchase regret is shown to be particularly prevalent for clothing & footwear and takeaway food. The tendency to regret purchases appears to reduce with age and to be more common amongst whi…
Not all low-carbon energy pathways are environmentally “no-regrets” options
Energy system pathways which are projected to deliver minimum possible deployment cost, combined with low Greenhouse Gas (GHG) emissions, are usually considered as ‘no-regrets’ options. However, the question remains whether such energy pathways present ‘no-regrets’ when also considering the wider environmental resource impacts, in particular those on land and water resources. This paper aims to determine whether the energy pathways of the UK’s Ca…
The incentives for supply chain collaboration to improve material efficiency in the use of steel: An analysis using input output techniques
Material efficiency: A white paper
What Do We Know About Metal Recycling Rates
The Role of Washing Machines in Life Cycle Assessment Studies: The Dangers of Using LCA for Prioritization
A key requirement for those in industry and elsewhere who wish to reduce the environmental impact of a product is to develop priorities for action. Life cycle assessment (LCA) is increasingly used to identify such priorities but can be misleading. This article draws attention to two effects that can occur when the system boundary for a product LCA is not defined correctly. We illustrate the “washing machine effect” by showing that in separate lif…
The structured development of simulation-based learning tools with an example for the Taguchi method
The structured development of simulation-based learning tools as an alternative to physical experiments in undergraduate engineering courses is described. A methodology for the design of simulation-based learning tools is proposed. This methodology combines the key elements of a standard systems development approach with an iterative development framework which highlights the importance of incorporating both pedagogic and communicational objectiv…
International risk of food insecurity and mass mortality in a runaway global warming scenario
Climate and agriculture have played an interconnected role in the rise and fall of historical civilizations. Our modern food system, based on open-environment production and globalised supply chains, is vulnerable to a litany of abiotic and biotic stressors exacerbated by anthropogenic climate change. Despite this evidence, greenhouse gas emissions continue to rise. Current trajectories suggest global warming of ∼2.0–4.9 °C by 2100, however, a wo…
Technology to the rescue? Techno-scientific practices in the United Kingdom Net Zero Strategy and their role in locking in high energy decarbonisation pathways
The development of country specific decarbonisation pathways is becoming increasingly common as more governments commit to achieving Net Zero. These pathways are critical for setting the direction and pace of decarbonisation. This article reviews the characteristics of fifteen different UK Net Zero pathways (three government pathways and 12 additional pathways) and shows how the expectation of technology innovation and low-carbon energy abundance…
Technology or behaviour? Balanced disruption in the race to net zero emissions
Not all low-carbon energy pathways are environmentally “no-regrets” options
Energy system pathways which are projected to deliver minimum possible deployment cost, combined with low Greenhouse Gas (GHG) emissions, are usually considered as ‘no-regrets’ options. However, the question remains whether such energy pathways present ‘no-regrets’ when also considering the wider environmental resource impacts, in particular those on land and water resources. This paper aims to determine whether the energy pathways of the UK’s Ca…
The gap between discourse and action in the United Kingdom: Exploring the weakness of climate action in the post-Covid political space
The post-pandemic recovery saw global attention given to the idea that we could Build Back Greener . In the UK, despite a similar narrative emerging, the government has failed to deliver decarbonisation policy in line with the country's targets. Following an initial wave of attention, the period from 2023 to (July) 2024 saw a backsliding in existing climate policy and rhetoric. This work explores why the UK government failed to translate ambitiou…
The structured development of simulation-based learning tools with an example for the Taguchi method
The structured development of simulation-based learning tools as an alternative to physical experiments in undergraduate engineering courses is described. A methodology for the design of simulation-based learning tools is proposed. This methodology combines the key elements of a standard systems development approach with an iterative development framework which highlights the importance of incorporating both pedagogic and communicational objectiv…
The Role of Washing Machines in Life Cycle Assessment Studies: The Dangers of Using LCA for Prioritization
A key requirement for those in industry and elsewhere who wish to reduce the environmental impact of a product is to develop priorities for action. Life cycle assessment (LCA) is increasingly used to identify such priorities but can be misleading. This article draws attention to two effects that can occur when the system boundary for a product LCA is not defined correctly. We illustrate the “washing machine effect” by showing that in separate lif…
Material efficiency: A white paper
What Do We Know About Metal Recycling Rates
The incentives for supply chain collaboration to improve material efficiency in the use of steel: An analysis using input output techniques
Not all low-carbon energy pathways are environmentally “no-regrets” options
Energy system pathways which are projected to deliver minimum possible deployment cost, combined with low Greenhouse Gas (GHG) emissions, are usually considered as ‘no-regrets’ options. However, the question remains whether such energy pathways present ‘no-regrets’ when also considering the wider environmental resource impacts, in particular those on land and water resources. This paper aims to determine whether the energy pathways of the UK’s Ca…
A General Nonlinear Least Squares Data Reconciliation and Estimation Method for Material Flow Analysis
The extraction, transformation, use, and disposal of materials can be represented by directed, weighted networks, known in the material flow analysis (MFA) community as Sankey or flow diagrams. However, the construction of such networks is dependent on data that are often scarce, conflicting, or do not directly map onto a Sankey diagram. By formalizing the forms of data entry, a nonlinear constrained optimization program for data estimation and r…
Questioning demand: A study of regretted purchases in Great Britain
This paper presents findings from a nationally representative household survey on the tendency to regret purchases across 20 product groups. The survey reveals that the vast majority of adults in Great Britain (82%) have regretted a purchase in the past. Post-purchase regret is shown to be particularly prevalent for clothing & footwear and takeaway food. The tendency to regret purchases appears to reduce with age and to be more common amongst whi…
Incremental Material Flow Analysis with Bayesian Inference
Material flow analysis (MFA) is widely used to study the life cycles of materials from production, through use, to reuse, recycling, or disposal, in order to identify environmental impacts and opportunities to address them. However, development of this type of analysis is often constrained by limited data, which may be uncertain, contradictory, missing, or over‐aggregated. This article proposes a Bayesian approach, in which uncertain knowledge ab…
Comparing energy and material efficiency rebound effects: An exploration of scenarios in the GEM-E3 macroeconomic model
Technology or behaviour? Balanced disruption in the race to net zero emissions
Modelling the embodied carbon cost of UK domestic building construction: Today to 2050
Technology to the rescue? Techno-scientific practices in the United Kingdom Net Zero Strategy and their role in locking in high energy decarbonisation pathways
The development of country specific decarbonisation pathways is becoming increasingly common as more governments commit to achieving Net Zero. These pathways are critical for setting the direction and pace of decarbonisation. This article reviews the characteristics of fifteen different UK Net Zero pathways (three government pathways and 12 additional pathways) and shows how the expectation of technology innovation and low-carbon energy abundance…
International risk of food insecurity and mass mortality in a runaway global warming scenario
Climate and agriculture have played an interconnected role in the rise and fall of historical civilizations. Our modern food system, based on open-environment production and globalised supply chains, is vulnerable to a litany of abiotic and biotic stressors exacerbated by anthropogenic climate change. Despite this evidence, greenhouse gas emissions continue to rise. Current trajectories suggest global warming of ∼2.0–4.9 °C by 2100, however, a wo…
The gap between discourse and action in the United Kingdom: Exploring the weakness of climate action in the post-Covid political space
The post-pandemic recovery saw global attention given to the idea that we could Build Back Greener . In the UK, despite a similar narrative emerging, the government has failed to deliver decarbonisation policy in line with the country's targets. Following an initial wave of attention, the period from 2023 to (July) 2024 saw a backsliding in existing climate policy and rhetoric. This work explores why the UK government failed to translate ambitiou…
Economics (11 works) · Business (9 works) · Computer Science (9 works) · Engineering (8 works) · Environmental Impact and Sustainability (8 works) · Environmental economics (7 works) · Natural resource economics (6 works) · Environmental Science (5 works) · Geography (4 works) · Greenhouse gas (4 works)