scholarly journals The role of Street condition and forms on the amount of carbon emissions released from vehicles

2021 ◽  
Vol 9 ◽  
Author(s):  
Rania Rushdy Moussa ◽  

In the last two decades, the percentage volume of carbon emissions has increased from 280 to more than 380 parts per million in the atmosphere, the problem is that it is still increasing daily in which it caused many environmental hazard that has been seen the last couple of years. The end of this century, It is expected that the uncontrolled amount of emissions emitted to the atmosphere will increase the surface temperature of plant earth by 3.4ºC. Worldwide, the percentage of carbon emissions in the atmosphere and its effect on air quality has been the main concern of scientist and researchers in the past decade. Egypt, is one of the biggest emitters that surfer from atmospheric pollution, almost 24% of the atmosphere pollutants in Egypt is from the transportation sector due to the heavy use of fossil fuels. Reducing the roads carbon emissions through streets design and form is the main scope of this research. This research intend to control the amount of carbon emission released in air by vehicles through controlling vehicles speed and motion which is effected by the street design and form. The presented research analysis the relation between carbon emissions and streets condition and forms, through measuring the amount of CO2 and CO emission produced in one of the Egyptian roads from different types of vehicles in road with three different conditions. El-Shuhada Street has been chosen to be the study area of this research. The researchers used Testo 315-3 to measure the Carbon emissions in the street and to identify the relation between CO2 emission and street condition and form. The results reveled that straight routes with vehicale speeds ranged between 80 to 100 kn/h produces less carbon emissions then straight routes with street bumps and vehicle speed ranged between 26 to 19 km/h. Moreover, curved routes emitted more emission than straight routes

2013 ◽  
Vol 04 (01) ◽  
pp. 1350003 ◽  
Author(s):  
TOMMY LUNDGREN ◽  
PER-OLOV MARKLUND

Using a growth model that accounts for environmental and climate externalities, we take a closer look at the welfare effects of promoting biomass growth and the use of bioenergy, and especially the role of carbon neutrality. As an illustration, a hypothetical intensive forest cultivation project is simulated. Costs and benefits of the project show that only determining the postive effects of promoting biomass growth and the use of bioenergy, such as substitution away from fossil fuels and carbon sequestration is not sufficient. But more importantly, to achieve a balanced measure of the effects on the climate, we must also incorporate all carbon emissions that are associated with bioenergy. Not doing so will over-estimate the positive climate effects of increasing the use of bioenergy.


2020 ◽  
Vol 27 ◽  
Author(s):  
Miranda Hines

This article addresses the need for the United States to reduce emissions from the transportation sector. In order to concisely evaluate the political discussion of promoting renewable energy use and discouraging reliance on fossil fuels, this article focuses on the adoption of electric and hybrid vehicles as a means of illustrating the larger policy challenge of how to maximize policy effectiveness at reducing emissions while minimizing economic disruption. The article estimates the magnitude of electric and gas-powered vehicles purchases in response to either a subsidy or a tax and discusses the positive and negative outcomes of each policy approach. The article finds that while a tax on carbon emissions may be most effective in removing gas-powered vehicles from the road, it will disproportionately affect lower-income households. Implementing substantial subsidies for electric vehicles, funded through a smaller tax on carbon emissions, is suggested as a solution to reduce the regressive impacts of a standalone carbon tax.


Author(s):  
David L. Kirchman

Geomicrobiology, the marriage of geology and microbiology, is about the impact of microbes on Earth materials in terrestrial systems and sediments. Many geomicrobiological processes occur over long timescales. Even the slow growth and low activity of microbes, however, have big effects when added up over millennia. After reviewing the basics of bacteria–surface interactions, the chapter moves on to discussing biomineralization, which is the microbially mediated formation of solid minerals from soluble ions. The role of microbes can vary from merely providing passive surfaces for mineral formation, to active control of the entire precipitation process. The formation of carbonate-containing minerals by coccolithophorids and other marine organisms is especially important because of the role of these minerals in the carbon cycle. Iron minerals can be formed by chemolithoautotrophic bacteria, which gain a small amount of energy from iron oxidation. Similarly, manganese-rich minerals are formed during manganese oxidation, although how this reaction benefits microbes is unclear. These minerals and others give geologists and geomicrobiologists clues about early life on Earth. In addition to forming minerals, microbes help to dissolve them, a process called weathering. Microbes contribute to weathering and mineral dissolution through several mechanisms: production of protons (acidity) or hydroxides that dissolve minerals; production of ligands that chelate metals in minerals thereby breaking up the solid phase; and direct reduction of mineral-bound metals to more soluble forms. The chapter ends with some comments about the role of microbes in degrading oil and other fossil fuels.


Author(s):  
David Mares

This chapter discusses the role of energy in economic development, the transformation of energy markets, trade in energy resources themselves, and the geopolitical dynamics that result. The transformation of energy markets and their expansion via trade can help or hinder development, depending on the processes behind them and how stakeholders interact. The availability of renewable, climate-friendly sources of energy, domestically and internationally, means that there is no inherent trade-off between economic growth and the use of fossil fuels. The existence of economic, political, social, and geopolitical adjustment costs means that the expansion of international energy markets to incorporate alternatives to oil and coal is a complex balance of environmental trade-offs with no solutions completely free of negative impact risk. An understanding of the supply of and demand for energy must incorporate the institutional context within which they occur, as well as the social and political dynamics of their setting.


2021 ◽  
Vol 13 (11) ◽  
pp. 5861
Author(s):  
Marianne Pedinotti-Castelle ◽  
Pierre-Olivier Pineau ◽  
Kathleen Vaillancourt ◽  
Ben Amor

Transportation is a key factor in the fight against climate change. Consumer behavior changes in transportation are underrepresented in energy policies, even if they could be essential to achieve the fixed GHG emission reduction targets. To help quantify the role of behaviors in energy transition and their implications on the dynamics of an energy system, this study is conducted using the North American TIMES Energy Model, adapted to Quebec (Canada). A behavioral disruption scenario (an increase in carpooling) is introduced in the model’s transportation sector and is compared to a massive electrification scenario. Our results highlight the fact that a behavioral disruption can lead to the same GHG emission reductions (65%) by 2050 as an electrification policy, while alleviating different efforts (such as additional electrical capacity and additional costs) associated with massive electrification. Moreover, the results are sensitive to behavior-related parameters, such as social discount rates and car lifetimes.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Muhammad Zia-ur-Rehman ◽  
Khalid Latif ◽  
Muhammad Mohsin ◽  
Zahid Hussain ◽  
Sajjad Ahmad Baig ◽  
...  

PurposeThe basic intention of this research is to investigate the role of information transparency of financial institutions and psychological attitude of the individuals toward their attention to saving and borrowing. This study also tries to know how an individual's psychological factor affects a person's attitude to motivate them to save or borrow and contribute to well-being by giving them confidence that they can face financial challenges. So, the main concern of this study is to explore different factors that ultimately contribute to the financial well-being (FWB) of individual.Design/methodology/approachA survey was conducted by using a well-structured questionnaire to collect data and test the developed hypotheses by using SmartPLS. Data were collected from 120 customers of seven different commercial banks in Pakistan.FindingsThe findings of this study show that perceived information transparency positively affects FWB. It is also because transparent shared information creates positive change in individuals' perceived self-efficacy and leads to FWB. Furthermore, an individual's psychological attitude toward borrowing and saving did not contribute to the FWB of people who belong to Pakistan.Research limitations/implicationsThe research area is limited to one city of Pakistan and analysis is done with small numbers of sample, it can be increased and more areas can be explored.Practical implicationsThis research provides significant implications for people and economists by providing awareness about the antecedents of FWB. The policymakers or managers who work in financial institutions should provide more transparent information and create less risky opportunities to improve the individual's well-being. If person, manager and financial institution can properly utilize the information of this study, then they are able to improve their FWB. By providing more transparent services and favorable experience with your dealings, it could help to obtain and retain more loyal internal (employees) and external customers. The loyal customers and sincere employees can increase the productivity level of organization. The more productive organizations in countries means better society and progress in the economy.Originality/valueThis research contributes to the body of knowledge that how perceived information transparency and psychological attitude of borrowing create improvement and upward changes in the FWB of a person.


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