• Title/Summary/Keyword: Global Warming Issue

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Current Status of Global ELV Recycling Regulation (국내외(國內外) 자동차(自動車) 리싸이클 규제(規制) 현황(現況))

  • Yoo, Tae-Wook
    • Resources Recycling
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    • v.18 no.5
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    • pp.3-11
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    • 2009
  • Recently efficient recycling of natural resource has been raised many people's interest with global warming issue. This study is focused mainly on main content of automobile recycling regulation and current situation of each nations including EU which is firstly acted. Also we were considering for adequate way to make better resource recycling condition and reduce Environment burden.

Development of Rental Children's Dress Using the Abandoned Wedding Dress II (웨딩드레스의 업싸이클링 대여 아동드레스 개발 -제2보-)

  • Park, Youshin
    • Journal of Fashion Business
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    • v.23 no.4
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    • pp.86-99
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    • 2019
  • This research is a study on up cycling design to protect nature in order to postpone global warming to the maximum extent possible as it has been a serious global issue to the fashion industry and even to individual consumers. This research focuses on the ways to use wedding dress, one of the clothes made of synthetic fiber, which is a major cause of global warming. Among clothing from the 19th century, two styles of clothes, Bustle style and Art Nouveau style were analyzed ranging from their underwear styles to outwear styles through collections in books and museums. Two styles of dress using drawers, chemise, and corset as basic underwears were manufactured. All the fabric and subsidiary materials except for parts of underwears were made with discarded wedding dresses. It was developed for rental clothing which women could try on Western costume, from underwears to outwears. First, for bustle dress, woman put on basic underwears, then bustle, and bustle-type petticoat. Dress is a two-piece type, and it was made to put on detachable train on the back of skirt. Second, based on the Art Nouveau style clothes, our-glass style dress consists of petticoat, one-piece over drawers, chemise, and corset. After putting on drawers, both chemise, and corset were the same as Bustle Style. This research is a practical way of realizing sustainable design. The aim of the current work is to provide educational effect on the development of rental clothes which upcycle wedding dress and let women experience other cultures.

A Study on Middle School Students' Perceptions of Global and Local Environmental Issues (중학생들의 전지구적 및 지역적 환경 문제 인식에 관한 연구)

  • Jung, Min-I;So, Keum-Hyun;Shim, Kew-Cheol;Yeau, Sung-Hee
    • Hwankyungkyoyuk
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    • v.20 no.3
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    • pp.63-75
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    • 2007
  • This paper focused on examining the middle school students' perceptions of characteristics(personal knowledge, human responsibility, impact on personal life, and predicted trend, behavior will) of 10 global and 8 local environmental issues. Subjects(N=516) demonstrated by completing a survey that they perceived the characteristics of issues differently on global and local scales, and to a degree those characteristics are related. First, middle school students' perceptions of global and local environmental issues were above mid-point mainly, and perceptions of local environmental issues were higher than those of global environmental issues. At perceptions of characteristics, They perceived that the personal knowledge of global environmental issues were higher than those of local issues, that the human responsibility effects on global environmental issues more than local environmental issues, that global environmental issues in the future, will be more serious. For each environmental issues, the perception of global warming among the global issues was highest, the perception of yellow dust and air pollution among the local issues was highest. For perceptions of characteristics, behavior will to solve the environmental issues was lower than that of 4 characteristics(personal knowledge, human responsibility, impact on personal life, and predicted trend). Second, there was significant difference of the perceptions of two scale environmental issues for area and sex. It showed that Seoul students' perceptions were higher than Kong-ju students' perceptions according to area, and that girl students' perceptions were higher than boy students' perceptions according to sex. Third, correlations among issues were significant. Especially, it was positive relationship between knowledge and human responsibility, human responsibility and impact on personal human responsibility and predicted trend. Educators and communicators should take into account the perceived characteristics of environmental issues and choose effective information sources and teaching methods to improve students' understanding of human-induced environmental changes.

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The Effects of NIE Program on Environmental Perception and Practice of Teenagers (NIE 프로그램이 청소년의 환경 인식과 실천에 미치는 영향)

  • Gam, Ye-Seul;Yang, Jung-Hwan;Ahn, Gyoung-Sook
    • Hwankyungkyoyuk
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    • v.21 no.2
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    • pp.80-88
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    • 2008
  • As the gravity of the issue of the global warming surfaced, environmental protection and energy conservation have become one of the most serious issues that global society faces. At the status quo, there are criticisms for not effectively educating the students although the problem is very severe. In middle school, for instance, only 10% of the school offer environmental education while only $20{\sim}30%$ of the high school offer it. As witnessed by these examples, we can infer that there are not well-structured, effective environmental education for teenagers. Recently, NIE(Newspaper-In-Education) has been used as effective means for some fields of middle and/ or high school education. If so, it also could be used for environmental education. The researches, however, on the topic of NIE on environmental education are very rare. In this study, the effect of NIE on environmental education was empirically tested. Our basic assumption is that NIE will cause differences in environmental perception; the cognition and concern. And environment education through NIE will cause the high level of cognition, concern, and practice regarding environment issue. Using simple experimental design and regression analysis, we tested the effect of NIE on cognition, and, concern of environment issue, and then, on the practice of environment-improving action. The "cognition level" did not show significant difference between the experimental group(which was exposed to NIE) and control group(which was not exposed to NIE). The "concern level" for environment showed significant difference. Finally, the "practice level" showed highly significant difference between the experimental and the control group. According to regression analysis, "concern" and "NIE"(dummy variable) was turned out to be statistically significant variables for practice of environment improving action. Therefore, we came up with the conclusion that NIE, which provides the most up-to-date information regarding the environmental status, can serve as the good supplementary mechanism for the effective environment education in the present Korean middle school curriculum system. The statistical result also suggests that each individual school needs to employ and extend NIE method in its environment education curriculum.

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Techno-Economic Analysis of Green Hydrogen Production System Based on Renewable Energy Sources (재생에너지 기반 그린 수소 생산 시스템의 기술 경제성 분석)

  • PARK, JOUNGHO;KIM, CHANG-HEE;CHO, HYUN-SEOK;KIM, SANG-KYUNG;CHO, WON-CHUL
    • Journal of Hydrogen and New Energy
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    • v.31 no.4
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    • pp.337-344
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    • 2020
  • Worldwide, there is a significant surge in the efforts for addressing the issue of global warming; the use of renewable energy is one of the solutions proposed to mitigate global warming. However, severe volatility is a critical disadvantage, and thus, power-to-gas technology is considered one of best solutions for energy storage. Hydrogen is a popular candidate from the perspective of both environment and economics. Accordingly, a hydrogen production system based on renewable energy sources is developed, and the economics of the system are assessed. The result of the base case shows that the unit cost of hydrogen production would be 6,415 won/kg H2, with a hydrogen production plant based on a 100 MW akaline electrolyzer and 25% operation rate, considering renewable energy sources with no electricity cost payment. Sensitivity study results show that the range of hydrogen unit cost efficiency can be 2,293 to 6,984 Won/kg H2, depending on the efficiency and unit cost of the electrolyzer. In case of electrolyzer operation rate and electricity unit cost, sensitivity study results show that hydrogen unit cost is in the range 934-26,180 won/kg H2.

Spatio-Temporal Summer Rainfall Pattern in 2020 from a Rainfall Frequency Perspective (2020년 여름철 강우의 시공간적 특성 분석: 빈도해석을 중심으로)

  • Kim, Yong-Tak;Park, Moonhyung;Kwon, Hyun-Han
    • Journal of Korean Society of Disaster and Security
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    • v.13 no.4
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    • pp.93-104
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    • 2020
  • Climate change has emerged as a social issue, and efforts have been made to overcome it in various ways. However, climate change due to global warming is likely to accelerate further than we expected, and the associated damage is also likely to increase. This tendency is expected to continue in the future, leading to difficulties for the existing water resource management system based on historical data. The precipitation in 2020 caused property damage and loss of life due to the extreme rainfall exceeding the design rainfall with the very unusual prolonged rainy days. With this 2020 flood, we should no longer be passive in managing flood risk due to uncertainties in climate change.

Climate Change by Global Warming and Its Effects on Production Efficiency of Lactating Dairy Cows in Korea : a Simulation Modeling Approach (지구온난화에 따른 국내 기후변화와 젖소 착유우의 생산효율에 미치는 영향 평가 : 모델 시뮬레이션을 이용한 접근)

  • Lee, Jung-Jin;Lee, Jun-Sung;Kim, Jong-Nam;Seo, Ja-Keum;Jo, Nam-Chul;Park, Seong-Min;Ki, Kwang-Seok;Seo, Seong-Won
    • Korean Journal of Organic Agriculture
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    • v.21 no.4
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    • pp.711-723
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    • 2013
  • The objectives of this study were to access climate change by global warming in Korea, and to investigate its effects on production efficiency of lactating dairy cows. Two regions, Daegu and Daekwanryung, were selected to represent a warm and a cold area, respectively. Time-series analyses on meteorological records for 25 years (from January 1, 1988 to December 31, 2012) revealed significant and different climate changes in two regions. In the warm area there has been a significant (P<0.05) increase in low temperature during the summer, which can cause heat stress to the animal. On the other hand, a decrease in low temperature during the winter was observed in the cold region (P<0.01), and cold stress in winter can thus be an issue in this region. Simulations using a model integrated the Korean feeding standard for dairy cattle and the environmental effect module of Cornell Net Carbohydrate and Protein System, indicated that a reduction in feed efficiency can be a problem during the winter in the cold region while during the summer in the warm area. We conclude that the effect of climate change by global warming varies in different areas in Korea and a region-specific management strategy should be developed in order to maintain productivity, health and welfare of lactating dairy cows.

Dynamic Analysis on the Policy Agenda Setting Process of the CO2 Emissions Trading (탄소배출권 거래제도 의제형성과정의 역동성 분석)

  • Lee, Eun-Kyu
    • Korean System Dynamics Review
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    • v.10 no.2
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    • pp.53-79
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    • 2009
  • The main purpose of this study is to find what steps are needed for a system for CO2 emissions trading to be formulated as government policy, using System Thinking approach. First, this paper analyzed Korean newspapers to consider the social issue regarding CO2 emissions trading. There were more articles related to international issues than domestic ones before 2008. This trend, however, became reversed from January 2008, which means that consideration of CO2 emissions trading has been discussed as a domestic social issue from 2008. Second, it analyzed speeches by former president Roh Moo-Hyun and current president Lee Myung-bak. In particularly, President Lee Myung-bak declared "Low Carbon and Green Growth" as a new growth engine and a Korea's vision of the future national development. Third, it examined which government agencies, including departments and committees, are pursuing policies regarding climate change, global warming, and CO2 emissions trading. Most policy has originated in the Ministry of Environment, although policy alternatives have been proposed in other agencies including the Ministry of Knowledge Economy. The study concludes that the political consideration has played a major role in the policy agenda-setting process of the CO2 emissions trading in Korea.

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A Study on Eco-friendly Tendency in Contemporary Fashion Brand (현대 패션 브랜드에 나타난 친환경 경향 연구)

  • Kim, Mi-Geum;Park, Hee-Jeong;Kan, Ho-Sup
    • Journal of Fashion Business
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    • v.14 no.4
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    • pp.185-199
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    • 2010
  • Global warming started as the scientific problem in 20th century is being highlighted as the environmental issue with the conclusion of convention on climate change. It has great influence in all aspects of nature, especially 'Eco-friendly design' that takes not only health life of present but also affluent life in the future into consideration became an inevitable trend in almost all industries including the apparel and distribution industry worldwide. Therefore, this study is an eco-friendly tendency in fashion that are hot issue in the world and focused on advertisement and collection since 2000. The aim of this is to classify eco-friendly fashion design study presented in contemporary fashion brand. In result, it was analyzed fourth tendencies as follows : eco-friendly tendency with organic material, upgradation of recycle fashion, green campaign and well-being LOHAS fashion. In this aspect, eco-friendly tendency that is expanded to overall society, culture and living shows in present.

Study on CO2 Emission Reduction Effects of Using Waste Cementitious Powder as an Alternative Raw Material

  • Park, Dong-Cheon;Kwon, Eun-Hee;Hwang, Jong-Uk;Ahn, Jae-Cheol
    • Journal of the Korea Institute of Building Construction
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    • v.14 no.2
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    • pp.187-194
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    • 2014
  • With environmental regulations continuously being strengthened internationally the need to control environmental pollution and environmental load is emerging in Korea. The purpose of this study is to seek methods or using waste cementitious powder as an alternative raw material for limestone through the optimization of raw material and to quantitatively analyze the resulting reduction of $CO_2$ emission in order to contribute to solving the issue of waste, which is the biggest issue in relation to construction and global warming. The results of the study, show that waste cementitious powder can be used as an alternative raw material for limestone at OPC level, but it was also found that mixing fine aggregate cementitious powder into waste cementitious powder significantly affected the substitution rate for limestone with waste cementitious powder and the reduction of greenhouse gas. In particular, when fine aggregate cementitious powder was used at a rate of 0~20%, the substitution rate for limestone and the reduction in the rate of greenhouse gas emission was significantly reduced. It is thought that a technique to efficiently separate and discharge the fine aggregate cementitious powder mixed in waste cementitious powder needs to be developed in the future.