scholarly journals GHG emissions in KG-CO2 / M2 generated by a House Type INFONAVIT

2019 ◽  
pp. 10-23
Author(s):  
Humberto Aceves-Gutierrez ◽  
Oscar López-Chávez ◽  
Santa Magdalena Mercado-Ibarra ◽  
Cesar Alejandro Contreras-Quintanar
Keyword(s):  
Climate Change ◽  
Life Cycle ◽  
Urban Growth ◽  
Greenhouse Effect ◽  
Human Population ◽  
Building Materials ◽  
Ghg Emissions ◽  
Iso 14040 ◽  
Fundamental Factor ◽  
The Earth

Climate change is one of the main current problems, it concerns the entire human population since its effects are worldwide, especially now we have seen its consequences, according to Menghi (2007), the average global temperatures grew by more than 0.5 ° C in the last century, and the glaciers are disappearing from the earth. The greenhouse effect generated mainly by the gases of the same name (GHG), is the fundamental factor of climate change. Construction is one of the ways in which the human being contaminates in a constant way this due to urban growth and the demand for infrastructure that this generates. This research has the purpose of determining the KG-CO2 / M2 generated by a 44 m2 house of interest type INFONAVIT using the Life Cycle methodology (ACV) of the products or materials, established in ISO 14040, employee an inventory of KG-CO2 emissions from building materials, obtained from various bibliographic sources and databases and using the work volumes required to build the house. The results obtained of 161.57 Kg-CO2 / M2.

Cosmopolitan Luck egalitarianism and the greenhouse effect

2005 ◽  
Vol 31 ◽  
pp. 279-309 ◽  
Author(s):  
Axel Gosseries
Keyword(s):  
Climate Change ◽  
Greenhouse Gas ◽  
Greenhouse Effect ◽  
Human Activities ◽  
Scientific Community ◽  
Ghg Emissions ◽  
Luck Egalitarianism ◽  
Straightforward Manner ◽  
Global Regime ◽  
Principles Of Justice

Evidence provided by the scientific community strongly suggests that limits should be placed on greenhouse gas (GHG) emissions. This means that states, firms, and individuals will have to face potentially serious burdens if they are to implement these limits. Which principles of justice should guide a global regime aimed at reducing greenhouse gas (GHG) emissions originating from human activities, and most notably from CO2 emissions? This is both a crucial and difficult question. Admittedly, perhaps this question is too ambitious, given the uncertainties and complexities characterizing the issue of climate change. Yet, rather than listing them all at this stage, let us address the question in a straightforward manner, introducing some of these complexities as the need arises.

CO2 Emission Analysis of Light Aggregate Concrete Block in China

2017 ◽  
Vol 898 ◽  
pp. 1963-1969 ◽  
Author(s):  
Yan Qiong Sun ◽  
Yu Liu ◽  
Su Ping Cui
Keyword(s):  
Life Cycle ◽  
Building Materials ◽  
Ghg Emissions ◽  
Concrete Block ◽  
Emission Analysis ◽  
Cement Production ◽  
Aggregate Concrete ◽  
Concrete Blocks ◽  
Cradle To Gate ◽  
Whole Life Cycle

The development and application of light aggregate concrete blocks are considered as one of the key issue that promote the energy saving and emission reduction in construction and building materials industries. In this paper, the greenhouse gas (GHG) emissions of light aggregate concrete blocks during the whole life cycle were analyzed based on life cycle assessment (LCA) methodology. The results demonstrated that the amount of GHG emissions of the light aggregate concrete block was 174 kg/m3 in the system boundary of ‘from cradle to gate’. The direct GHG emissions was 51.31 kg/m3 accounting for 28.46% of the aggregate emission, while the indirect GHG emissions was 124 kg/m3. The cement production and the concrete block production were the main contributors to the total emissions. According to the sensitivity analysis, the GHG emissions amount was quite sensitive to the amount of cement and ceramsite consumption.

scholarly journals CO₂ emissions of an asphalt pavement in kg of CO₂ per m2

2021 ◽  
pp. 12-26
Author(s):  
Oscar Lopez-Chavez ◽  
Santa Magdalena Mercado-Ibarra ◽  
Humberto Aceves-Gutiérrez ◽  
José Manuel Campoy-Salguero
Keyword(s):  
Climate Change ◽  
Greenhouse Gases ◽  
Urban Environment ◽  
Construction Industry ◽  
Greenhouse Effect ◽  
Human Population ◽  
Asphalt Pavement ◽  
Urban Environments ◽  
Asphalt Pavements ◽  
Construction Process

Climate change is one of the world's major problems and concerns the entire human population as its effects are global in scope. Climate change is driven by the greenhouse effect, which is generated by greenhouse gases (GHG). The construction industry is important in the development of a country, both economically and culturally, since it is through it that the infrastructure needs required for a nation's economic and social activities are met. Urban environments are composed of various structures that favor economic, social and any other activities of interest within the existing population; such urban environment is mainly connected by a system that is constituted by asphalt pavements of flexible or rigid type. This project analyzes the environmental impacts generated during the construction process of an asphalt pavement corresponding to the Real de Sevilla III subdivision, located in Obregon City, Sonora, Mexico, applying the Simapro 9.0 Software, obtaining a result of 12.618 Kg CO2 eq/m2 and 1,140, 863.493 Kg-CO2/fractionation generated by its main materials and activities and equipment consumptions.

Analysis of Calculation Methods for Life Cycle Greenhouse Gas Emissions for Road Sector

2017 ◽  
Author(s):  
Viktoras Vorobjovas ◽  
Algirdas Motiejunas ◽  
Tomas Ratkevicius ◽  
Alvydas Zagorskis ◽  
Vaidotas Danila
Keyword(s):  
Climate Change ◽  
Life Cycle ◽  
Greenhouse Gas ◽  
Carbon Footprint ◽  
Ghg Emissions ◽  
Road Construction ◽  
Evaluation Methods ◽  
The Road ◽  
Construction Methods ◽  
The Impact

Climate change is one of the main nowadays problem in the world. The politics and strategies for climate change and tools for reduction of greenhouse gas (GHG) emissions and green technologies are created and implemented. Mainly it is focused on energy, transport and construction sectors, which are related and plays a significant role in the roads life cycle. Most of the carbon footprint emissions are generated by transport. The remaining emissions are generated during the road life cycle. Therefore, European and other countries use methods to calculate GHG emissions and evaluate the impact of road construction methods and technologies on the environment. Software tools for calculation GHG emissions are complicated, and it is not entirely clear what GHG emission amounts generate during different stages of road life cycle. Thus, the precision of the obtained results are often dependent on the sources and quantities of data, assumptions, and hypothesis. The use of more accurate and efficient calculation-evaluation methods could let to determine in which stages of road life cycle the largest carbon footprint emissions are generated, what advanced road construction methods and technologies could be used. Also, the road service life could be extended, the consumption of raw materials, repair, and maintenance costs could be reduced. Therefore the time-savings could be improved, and the impact on the environment could be reduced using these GHG calculation-evaluation methods.

A Review of the Application of LCA for Sustainable Buildings in Asia

2013 ◽  
Vol 724-725 ◽  
pp. 1597-1601 ◽  
Author(s):  
Ahmad Faiz Abd Rashid ◽  
Sumiani Yusoff ◽  
Noorsaidi Mahat
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Environmental Impact ◽  
Building Materials ◽  
International Organization ◽  
Embodied Energy ◽  
Building Industry ◽  
Sustainable Buildings ◽  
Iso 14040 ◽  
Operational Phase

The introduction of life cycle assessment (LCA) to the building industry is important due to its ability to systematically quantify every environmental impact involved in every process from cradle to grave. Within the last two decades, research on LCA has increased considerably covering from manufacturing of building materials and construction processes. However, the LCA application for buildings in Asia are limited and fragmented due to different research objectives, type of buildings and locations. This paper has attempted to collect and review the application of LCA in the building industry in Asia from the selected publications over the last 12 years, from 2001 to 2012. The result shows that most LCA research basic methodology is based on International Organization of Standardization (ISO) 14040 series but with variance. It is found that the operational phase consume highest energy and concrete responsible for the highest total embodied energy and environmental impact. It also suggested that building material with low initial embodied energy does not necessarily have low life cycle energy. Overall, findings from LCA studies can help to make informed decisions in terms of environmental impact and help realizing sustainable buildings in the future.

Climate Change and Ocean Acidification

2015 ◽  
Author(s):  
Judith S. Weis
Keyword(s):  
Climate Change ◽  
Carbon Dioxide ◽  
Global Warming ◽  
Ocean Acidification ◽  
Greenhouse Effect ◽  
Fossil Fuels ◽  
The Past ◽  
The Earth

What causes global warming or climate change? The burning of fossil fuels emits carbon dioxide into the atmosphere, which results in the greenhouse effect—less heat can be re-radiated away from the earth, thus raising the temperature of the atmosphere and ocean. In the past...

Mitigation of Greenhouse Gas Emissions Through the Shift From Fossil Fuels to Electricity in the Mass Transport System in Guayaquil, Ecuador

2018 ◽  
Author(s):  
Angel D. Ramirez ◽  
Danilo Arcentales ◽  
Andrea Boero
Keyword(s):  
Climate Change ◽  
Life Cycle ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Fossil Fuels ◽  
Ghg Emissions ◽  
Partial Replacement ◽  
Transport Sector ◽  
Carbon Intensity ◽  
Gas Emissions

Climate change is a serious threat to sustainability. Anthropogenic climate change is due to the accumulation of greenhouse gases (GHG) in the atmosphere beyond natural levels. Anthropogenic GHG emissions are mostly associated with carbon-dioxide (CO2) originated in the combustion of fossil fuels used for heat, power, and transportation. Globally, transportation contributes to 14% of the global GHG emissions. The transport sector is one of the main contributors to the greenhouse gas emissions of Ecuador. In Guayaquil, the road mass transportation system comprises regular buses and the bus rapid transit (BRT) system. Electricity in Ecuador is mostly derived from hydropower, hence incurs relatively low GHG emissions along its life cycle. Therefore, electrification of transport has been seen as an opportunity for mitigation of GHG emissions. In this study, the effect of partial replacement of the bus rapid system fleet is investigated. Feeders have been chosen as the replacement target in five different scenarios. GHG emissions from diesel-based feeders have been calculated using the GREET Fleet Footprint Calculator tool. The GHG emissions associated with the electricity used for transportation is calculated using the life cycle inventory of the electricity generation system of Ecuador. Three energy mix scenarios are used for this purpose. The 2012 mix which had 61% hydropower; the mix of 85% hydropower and the marginal electricity scenario, which supposed the extreme case when the new demand for electricity occurs during peak demand periods. Results indicate that mitigation of GHG emissions is possible for almost all scenarios of percentage fleet replacement and all mix scenarios. Electric buses efficiency and the carbon intensity of the electricity mix are critical for GHG mitigation.

scholarly journals Regionalized Strategies for Food Loss and Waste Management in Spain under a Life Cycle Thinking Approach

Foods ◽  
2020 ◽  
Vol 9 (12) ◽  
pp. 1765
Author(s):  
Daniel Hoehn ◽  
Jara Laso ◽  
Jorge Cristóbal ◽  
Israel Ruiz-Salmón ◽  
Isabela Butnar ◽  
...  
Keyword(s):  
Climate Change ◽  
Life Cycle ◽  
Ghg Emissions ◽  
Paris Agreement ◽  
Life Cycle Thinking ◽  
Political Debate ◽  
Management Scenarios ◽  
Food Loss ◽  
The Social ◽  
Abiotic Resources

Food loss and waste (FLW) has become a central concern in the social and political debate. Simultaneously, using FLW as a bioenergy source could significantly contribute to closing the carbon cycle by reintroducing energy into the food supply chain. This study aims to identify best strategies for FLW management in each of the 17 regions in Spain, through the application of a Life Cycle Assessment. To this end, an evaluation of the environmental performance over time between 2015 and 2040 of five different FLW management scenarios implemented in a framework of (i) compliance and (ii) non-compliance with the targets of the Paris Agreement was performed. Results revealed savings in the consumption of abiotic resources in those regions in which thermal treatment has a strong presence, although their greenhouse gas (GHG) emissions in a scenario of compliance with climate change targets are higher. In contrast, scenarios that include anaerobic digestion and, to a lesser extent those applying aerobic composting, present lower impacts, including climate change, suggesting improvements of 20–60% in non-compliance and 20–80% in compliance with Paris Agreement targets, compared to the current scenarios.

scholarly journals Assessment of the circularity and carbon neutrality of an office building: The case of’t Centrum in Westerlo, Belgium

2021 ◽  
Vol 855 (1) ◽  
pp. 012025
Author(s):  
M Al-Obaidy ◽  
M C Santos ◽  
M Baskar ◽  
S Attia
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Building Materials ◽  
Steel Structure ◽  
Building Design ◽  
Office Building ◽  
Structural Systems ◽  
Iso 14040 ◽  
Carbon Neutrality ◽  
Local Plant

Abstract Circular building design is a concept that is gaining great interest from architects, construction professionals, and their clients but is still rarely adopted in practice. One of the earliest design decisions architects and developers should make to design a circular building is to determine the building’s construction system. The choice of constructive and structural systems, such as columns, beams, and slabs, is crucial to upgrade the reuse cycles in the future. Flexible construction systems can make it easier to dismantle the structures and recover, upgrade, modify, or transform building materials. Therefore, this paper assesses the carbon emission impacts of two construction systems for an office building in Belgium using life cycle assessment (LCA) and circularity criteria. One-Click LCA software was used for the calculations. Parametric analysis took place for two construction systems scenarios involving a steel structure and a timber structure. Life Cycle Assessment and comparisons of the various construction systems are made based on ISO 14040, 14044, and CEN/TC 350 standards with a focus on carbon neutrality. The results show that using local plant-based materials such as wood can drastically reduce office buildings’ carbon footprint. Based on the sensitivity analysis results, the overall global warming potential impact is mostly sensitive to the construction material’s weight and reuse and dismantling ability. This paper provides a better understanding of building structural systems; to inform architects about the circularity potential of different construction systems.

scholarly journals Incorporating Reservoir Greenhouse Gas Emissions into Carbon Footprint of Sugar Produced from Irrigated Sugarcane in Northeastern Nigeria

2020 ◽  
Vol 12 (24) ◽  
pp. 10380
Author(s):  
Taitiya Kenneth Yuguda ◽  
Yi Li ◽  
Bobby Shekarau Luka ◽  
Goziya William Dzarma
Keyword(s):  
Life Cycle ◽  
Greenhouse Gas ◽  
Carbon Footprint ◽  
Ghg Emissions ◽  
Total Carbon ◽  
Sugar Production ◽  
Climatic Fluctuations ◽  
Iso 14040 ◽  
Reservoir Drawdown ◽  
Sugarcane Productivity

Greenhouse gas (GHG) emissions from reservoirs are responsible for at most 2% of the overall warming effects of human activities. This study aimed at incorporating the GHG emissions of a reservoir (with irrigation/sugar production as its primary purpose), into the carbon footprint of sugar produced from irrigated sugarcane. This study adopts a life-cycle assessment (LCA) approach and encompasses the cradle-to-gate aspect of the international organization of standardization ISO 14040 guidelines. Results show that total carbon footprint of refined sugar could be as high as 5.71 kg CO2-eq/kg sugar, over its entire life cycle, depending on the priority of purposes allocated to a reservoir and sugarcane productivity. Findings also reveal that the dammed river contributes the most to GHG emissions 5.04 kg CO2-eq/kg sugar, followed by the agricultural stage 0.430 kg CO2-eq/kg sugar, the sugar factory 0.227 kg CO2-eq/kg sugar, and lastly the transportation stage 0.065 kg CO2-eq/kg sugar. The sensitivity analysis shows that carbon footprint CF of sugar production is largely influenced by the rate of biomass decomposition in the impounded reservoir over time, followed by the reservoir drawdown due to seasonal climatic fluctuations. Significant amounts of GHG emissions are correlated with the impoundment of reservoirs for water resource development projects, which may account for up to 80% of total GHG emissions to the reservoir’s primary purpose. Sugar production expansion, coupled with allocating more functions to a reservoir, significantly influences the CF of sugar per service purpose. This study is an indicator for policymakers to comprehend and make plans for the growing tradeoffs amongst key functions of reservoirs.

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