Sébastien Dente

Ritsumeikan University · Department of Environmental Systems Engineering

This study employed dynamic material flow analysis (MFA) and mass balance principles to examine copper flows in Indonesia, Malaysia, the Philippines, Thailand, and Vietnam from 1960 to 2020, with projections extending to 2050 using five shared socioeconomic pathway (SSP) scenarios. We applied the secondary resources classification framework to asse...

As ASEAN countries, including Vietnam, approach the living standards of developed countries, their copper demand is set to rise. This study investigates Vietnam’s copper stock and flow from 1995 to 2050, employing dynamic material flow analysis and five socioeconomic pathway scenarios (SSPs). Based on this, the secondary copper reserves of Vietnam...

Eco-labels promote environmentally conscious behavior through logos and accompanying information. However, research on the optimal combinations of this information is limited. This study examines the impact of the Japanese Eco Mark logo and recycled plastic input information on consumers’ willingness to pay (WTP) for mugs and pens. The survey resul...

Smelting of copper, a crucially important resource, releases small amounts of mercury into the atmosphere, thereby endangering people and the global environment. This study estimated the expected changes in mercury emissions from copper smelting in response to future changes in copper demand in major copper-producing countries (China, DR Congo, Ger...

Artificial intelligence (AI) applications and digital technologies (DTs) are increasingly present in the daily lives of citizens, in cities and in industries. These developments generate large amounts of data and enhance analytical capabilities that could benefit the industrial ecology (IE) community and sustainability research in general. With thi...

Artificial intelligence (AI) applications and digital technologies (DTs) are increasingly present in the daily lives of citizens, in cities and in industries. These developments generate large amounts of data and enhance analytical capabilities that could benefit the industrial ecology (IE) community and sustainability research in general. With thi...

Decoupling well‐being from resource use and its associated environmental impacts through resource efficiency and circular economy has become the mainstream agenda for sustainable development. Resource productivity and material flow indicators have been widely used to evaluate resource decoupling. Several approaches have been introduced in Europe to...

Our earlier work identified social issues of stakeholders who are highly exposed to poor social performance in the current waste management system (WMS) of Kabul city, Afghanistan. The present work builds on earlier findings to elaborate four alternative scenarios with better social outcomes. For each scenario of the current system, greenhouse gas...

The current organization of water supply systems demands drinking standards for all the households' usage of water. Few dual water systems, i.e., systems in which the quality of the water supplied is differentiated by types of use, exist but are mainly circumscribed to developing countries. Besides, bath and showers are so far considered as a potab...

The present study constitutes the first social life cycle assessment (SLCA) study in Afghanistan and aims at assessing the social performance of the waste management system (WMS) of Kabul city. The system boundary considered includes households generating the waste, the sanitation department of Kabul city, scavengers, recycling shops, the recycling...

Tracker of covid-19 epidemics

102 regions are now infected by Covid-19 with 112,714 confirmed cases. The province of Hubei in China, where the virus originated from, only represents 60% of the cases. The other regions most affected are Italy (8.1%), South Korea (6.6%), Iran (6.4%), Guangdong (1.2%), Henan (1.1%), Zhejiang (1.1%), France (1.1%), Germany (1.0%) and Spain (1.0%)....

On March 1st, the Corona virus epidemic has already spread to 68 countries. 88,371 people are infected and 90% of infected people are in China. However, while the epidemic is almost ending in China, many outbreaks appeared in Europe, South Korea, Japan and Europe. The rate of infected people in mainland China is 0.55 infected person per 10,000 inha...

The current epidemic of Corona virus can be captured using the stock and flow metrics. Differences between mortality ratio and confirmed fatality ratio appear important and suggest metrics used during the epidemic and after the epidemic should be different.

(Full text can be accessed at https://www.sciencedirect.com/science/article/pii/S0959652620304352?dgcid=author) The present study demonstrates how the environmentally weighted material consumption (EMC) indicator can be used to assess the resource efficiency of bioeconomy policies by calculating thirteen categories of environmental impacts associa...

This research extends the methodology proposed in a previous study to assess the life cycle greenhouse gases (GHGs) of 64 target materials. In the earlier paper, GHG emissions associated with the production of materials (i.e., upstream emissions) were calculated considering the standard Leontief/supply chain framework. As a consequence, the process...

In this study, we used material flow analysis and life cycle assessment to quantify the environmental impacts and impact reductions related to wood consumption in Japan from 1970 to 2013. We then conducted future projections of the impacts and reductions until 2050 based on multiple future scenarios of domestic forestry, wood, and energy use. An im...

Double decoupling of economic growth with resource use amounts and resource use with generated environmental effects has been recognized as a policy objective towards sustainability by the European commission. To achieve such a policy, indicators are needed to establish the specific environmental of materials from a life cycle perspective. To date,...

Water produced from municipal utilities accounts for nearly 10% of the sum water demand in China. The municipal water cycle that integrates processes of urban water supply, water use, sewage treatment, and water reclamation has been assessed for 655 cities across nine drainage areas in mainland China in 2012. These cities in total extracted 55km(3)...

Impact assessments of carbon emission mitigation policies by shippers and carriers require appropriate emission models and indicators of logistics activity. Usually, the ton-kilometer indicator is used to measure logistics activity, and emissions are calculated as a linear function of this indicator. Generally, the models that emission factors orig...

Service is most often measured with a flow and monetary perspective using indicators such as gross domestic product (GDP) or the value added or income of a particular economic sector. However, infrastructures and therefore the associated material stocks also participate to the service delivery. Our study contributes to this emerging research field...

Establish a proper mapping of the functions fulfilled by a product can reveal the many technological and organizational opportunities to fulfill a given function. Here, preliminary results are shown regarding the household supply system taken into account the quality requirement for different types of household use.

Functional and circular economies are often presented as promising strategies to address the environmental issues associated with our modern production/consumption systems. Within these systems, the circulation processes themselves are usually poorly addressed, in spite of the increasing energy consumption and emissions associated with logistics un...

Les économies circulaires et de fonctionnalité sont souvent présentées comme des stratégies prometteuses quant à leur capacité à résoudre les problèmes environnementaux associés aux systèmes de production et de consommation actuels. Cependant, malgré les consommations d’énergie et émissions croissantes associées à la mondialisation de nos systèmes...

The transportation of goods plays a significant role in the overall greenhouse gas emissions from consumption. This study investigates the connections between French household consumption and production and transportation-related emissions throughout product supply chains. Here a two-region, environmentally extended input-output model is combined w...