scholarly journals What can Beijing learn from the world megacities on energy and environmental issues?

2022 ◽  
Vol 8 ◽  
pp. 414-424
Author(s):  
Xinxin Zhang ◽  
Zhenggang Lu ◽  
Maogang He ◽  
Jingfu Wang
2014 ◽  
Vol 962-965 ◽  
pp. 1509-1512
Author(s):  
Lin Liu ◽  
Pin Lv

There are various signs indicating that the Earth's natural environment is changing toward unfavorable direction for species, which is highly suspected to be connected with human activities. In the last century, people all over the world have realized the severity of environmental issues. In the long history, Chinese ancient had already development good rules and methods to reach balance between economic development and environment sustainability. This paper will discuss how environmental concepts forms and which methods could be applied in the future.


2011 ◽  
Vol 399-401 ◽  
pp. 1251-1256 ◽  
Author(s):  
Wai Ching Tang ◽  
Hong Zhi Cui ◽  
Yiu Lo

Nowadays, one of the most essential environmental issues around the world is to deal with the scrap tire problem. Tires that are used, rejected or unwanted are classified as scrap tires and need to be managed responsibly. In this paper, the scrap tires were shredded into pieces and used to mix with normal weight concrete. Extensive laboratory tests were carried out and the focus of this paper was to characterize the mechanical and permeability properties of concrete containing scrap tires. The main parameters studied were chipped tire content and size. The results showed that the scrap-tire chips without adding special bonding agents apparently showed an even distribution in the mortar and concrete matrix. The elastic modulus, compressive and tensile strengths of scrap tire concrete in general were found lower than that of the control concrete and the differences became significant when the content and size of chipped tires in the mix were increased. Besides, the coefficients of water permeability of concrete were found to increase with increase of chipped tires in the mix.


2018 ◽  
Vol 15 ◽  
pp. 231-237 ◽  
Author(s):  
Martín José Montero-Martínez ◽  
Julio Sergio Santana-Sepúlveda ◽  
Naydú Isabel Pérez-Ortiz ◽  
Óscar Pita-Díaz ◽  
Salvador Castillo-Liñan

Abstract. It is a matter of current study to determine potential climate changes in different parts of the world, especially in regions like a basin which has the potential to affect socioeconomic and environmental issues in a defined area. This study provides a comparison between several climate change indices trends of two very different basins in Mexico, one located in the northern arid region (the Conchos River basin) and the other in the southern humid area (the Usumacinta River basin). First, quality control, homogenization, and completion of the missing data were applied before calculating the climate change indices and their respective trends for the combined period 1961–1994. A clear warming signal was found for the two basins in addition to an increment in the DTR, in agreement with other studies in Mexico. Also, the Conchos River basin was found to be more humid and the Usumacinta River basin drier, in accordance to a supposed seesaw behavior indicated in previous analysis.


2017 ◽  
Vol 3 (2) ◽  
pp. 105-110
Author(s):  
Mohammad Ebrahim Komaki ◽  
Amirreza Ghodrati Dolatshamloo ◽  
Mahdi Eslami ◽  
Sahar Heydari

Disposal of waste tire rubber has become one of the major environmental issues in each part the World. One of the possible solutions to dispose of scrap tire rubber is using them into concrete curbs. This paper presents a new method to ameliorate the rubber concrete using a particular rubber size and Nano Material. Initially six mix designs were performed to determine the optimized size and percentage of rubber according to compressive strength. Afterwards, the major concrete curbs were made with the optimum mix design. Three different samples were made to determine the effects of rubber and Nano. One of which was made without rubber and Nano, the other was made with rubber and the last with rubber and Nano. Experiments were carried out to determine the durability and strength of specimens according to ISIRI-12728.


2020 ◽  
Vol 5 (1) ◽  
pp. 65-84
Author(s):  
Sumaira Nawaz ◽  
Dr. Shah Moeen ud Din Hashmi

Article endeavors to analyze the prophetic guiding principles regarding human behaviors related to plants and trees being an important component of our environment. The discussion mainly deals with the key environmental issues emphasizing plantation and its significance for balancing the equilibrium of the environment. Additionally, it thrashes out that humans are urged to seedling the plantation even the world is to be ended in Islam. The present study is delimited to the present ecological crises faced by society and a great challenge to the globe. The current ecological problems i.e global warming and climate change are interpreted just to analyze the environmental behaviors in Hadith literature. However, a profundity descriptive study has been conducted in the most influential way to examine the prophetic rules for human behaviors related to trees and plants being environment friendly. Furthermore, the existing practices of humans related to such an environmental sphere also been aptly figure out to highlight all possible ways in the light of prophetic guidance to deal with prevailing environmental issues. Inconsistency between religious teachings and human behaviors need the keen interest of religious scholars and social scientists to carefully harmonize both for maintaining the ecological balance in nature.


2021 ◽  
Vol 49 (4) ◽  
pp. 538-550
Author(s):  
Laura Naranjo ◽  
Jorge Castillo ◽  
Valesca Montes ◽  
Eleuterio Yáñez

Society's awareness of environmental issues increases every day. In this context, the concept of carbon footprint (CF) arises as a calculation tool that quantifies greenhouse gasses (GHG) emitted during the life cycle (LC) of a product. This calculation method is used in many productive sectors throughout the world; however, the Chilean fisheries sector has not notified the use of this tool or initiatives in that sense. This study performs a calculation of the CF of artisanal gillnet hake (Merluccius gayi gayi) fishery of the Caleta Portales, located in Valparaíso, Chile. The ISO 14040: 2006 methodology was used. The analysis was limited from the boat departure until the catch is landed, as a gate-to-gate life cycle assessment (LCA). The fuel consumption data and information related to the fleet were used as the main source of information. The Caleta Portales hake landings were 1,340.484 kg in 2011 and 703,411 kg in 2012. This fleet released into the atmosphere in 2011, 0.47 CO2 equivalent per kg of hake landed, and 0.58 kg CO2 eq, in 2012. It is the first result of CF reported in a Chilean fishery. This result can lead to an increase in the competitiveness of this hake fishery, as it can generate a positive impact on encouraging consumers to prefer the consumption from those places that have calculated the CF and are less than other food products.


2018 ◽  
Vol 62 (2) ◽  
pp. 124-126
Author(s):  
Biatriz Guedes ◽  
Aurore C Paillard-Bardey ◽  
Anke Schat

Fashion, as one of the largest industries in the world, causes serious social and environmental issues. Sustainable fashion aims to reduce pollution and improve working conditions in the industry. This article suggests ideas for improving advertising and better understanding consumer behavior in order to promote sustainable fashion. While there is still a lack of academic studies on consumer behavior and sustainable fashion, there is a need of the fashion industry to become more sustainable. Further work on improving sustainable fashion advertising as well as better understanding the target audience is to date necessary.


Author(s):  
Ruyu Hung

The neologism ecopedagogy was coined in the late 20th century to represent the joining of ecology and pedagogy. However, ecopedagogy is not an education about ecology but an education through ecology, meaning that it is an education based on an ecological worldview. A worldview is the fundamental understanding of life and the world. Ecological worldview means the ecological approach to the understanding of life and the world. The basic ideas of the ecological worldview come from the science of ecology, of which there are two interpretations: ecology of stability and ecology of instability. Both provide a general, shared outline of the world and how it works but each offers distinctive values of philosophy, ethics, culture, and society with regard to the ecosystem. Ecopedagogy, which encompasses both ecological worldview and education, develops into two broad movements: philosophical ecopedagogy and critical ecopedagogy. For the former, referred to as ecosophy, focuses on the metaphysical investigation of the human-nature relationship and related issues in education. For the latter, ecojustice, the mission is to critique the injustice and oppression involved in environmental issues and to construct a utopian society of planetary civilization.


Author(s):  
David M. Kaplan

Environmental philosophy and philosophy of technology have a lot in common. Both fields explore the positive and negative aspects of human modifications of the world. Both question the limits of technology in relation to natural environments, animals, plants, and food. Both examine if human making and doing is compatible with nature or wholly different from it. And both examine the difference between what is considered to be natural and artificial. Technology and the environment further intersect in a number of issues, such as climate change, sustainability, geo-engineering, and agriculture. The reason for the overlap is fundamental: Environmental issues inevitably involve technology, and technologies inevitably have environmental impacts. Technology and the environment are like two sides of the same coin: Each is fully understood only in relation to the other. Yet, despite the ample overlap of questions concerning technology and the environment, the two philosophical fields have developed in relative isolation from each other. Even when philosophers in each field address themselves to similar concerns, the research tends to be parallel rather than intersecting, and the literatures remain foreign to one another. These divergent paths are unfortunate. Philosophers from each field have a lot to contribute to the other....


Sign in / Sign up

Export Citation Format

Share Document