• 제목/요약/키워드: Environmental Evidence

검색결과 1,036건 처리시간 0.027초

Carbon dioxide emissions, GDP per capita, industrialization and population: An evidence from Rwanda

  • Asumadu-Sarkodie, Samuel;Owusu, Phebe Asantewaa
    • Environmental Engineering Research
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    • 제22권1호
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    • pp.116-124
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    • 2017
  • The study makes an attempt to investigate the causal nexus between carbon dioxide emissions, GDP per capita, industrialization and population with an evidence from Rwanda by employing a time series data spanning from 1965 to 2011 using the autoregressive distributed lag model. Evidence from the study shows that carbon dioxide emissions, GDP per capita, industrialization and population are co-integrated and have a long-run equilibrium relationship. Evidence from the Granger-causality shows a unidirectional causality running from industrialization to GDP per capita, population to carbon dioxide emissions, population to GDP per capita and population to industrialization. Evidence from the long-run elasticities has policy implications for Rwanda; a 1% increase in GDP per capita will decrease carbon dioxide emissions by 1.45%, while a 1% increase in industrialization will increase carbon dioxide emissions by 1.64% in the long-run. Increasing economic growth in Rwanda will therefore reduce environmental pollution in the long-run which appears to support the validity of the environmental Kuznets curve hypothesis. However, industrialization leads to more emissions of carbon dioxide, which reduces environment, health and air quality. It is noteworthy that the Rwandan Government promotes sustainable industrialization, which improves the use of clean and environmentally sound raw materials, industrial process and technologies.

산림바이오매스에너지에 관한 과학적 근거에 따른 통설적 접근 (Forest Biomass Utilization for Energy Based on Scientifically Grounded and Orthodox)

  • 이승록;한규성
    • 신재생에너지
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    • 제20권1호
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    • pp.145-174
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    • 2024
  • Addressing climate change necessitates evidence-based policies grounded in science. The use of forest biomass for energy production is based on a broad scientific consensus at the international level. However, some environmental groups in South Korea are opposing this system of energy production. Through this study, the authors aim to reduce unnecessary confusion and foster an atmosphere conducive to meaningful evidence-based policies. We have classified the issue into eight categories: biological carbon cycle, carbon debt, nature-based solutions, air emissions, cascading principles and sustainability certification, forest environmental impacts, climate change litigation, and the behavior of environmental groups and public perception. Consequently, the following key points were derived: (1) the actions of some environmental groups seem to follow a similar pattern to denialist behavior that denies climate change and climate science; (2) the quality of evidence for campaigns that oppose the use of forest biomass for energy production is low, with a tendency to overgeneralize information, high uncertainty, and difficulty in finding new claims.; (3) most of the public believes that forest biomass energy is necessary, and the governments of major countries are aware of its importance. Significantly, Forest biomass for energy is based on an overwhelming level of scientific consensus recognized internationally.

The relationship between carbon dioxide, crop and food production index in Ghana: By estimating the long-run elasticities and variance decomposition

  • Sarkodie, Samuel Asumadu;Owusu, Phebe Asantewaa
    • Environmental Engineering Research
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    • 제22권2호
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    • pp.193-202
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    • 2017
  • The study estimated the relationship between carbon dioxide, crop and livestock production index in Ghana: Estimating the long-run elasticities and variance decomposition by employing a time series data spanning from 1960-2013 using both fit regression and ARDL models. There was evidence of a long-run equilibrium relationship between carbon dioxide emissions, crop production index and livestock production index. Evidence from the study shows that a 1% increase in crop production index will increase carbon dioxide emissions by 0.52%, while a 1% increase in livestock production index will increase carbon dioxide emissions by 0.81% in the long-run. There was evidence of a bidirectional causality between a crop production index and carbon dioxide emissions and a unidirectional causality exists from livestock production index to carbon dioxide emissions. Evidence from the variance decomposition shows that 37% of future fluctuations in carbon dioxide emissions are due to shocks in the crop production index while 18% of future fluctuations in carbon dioxide emissions are due to shocks in the livestock production index. Efforts towards reducing pre-production, production, transportation, processing and post-harvest losses are essential to reducing food wastage which affects Ghana's carbon footprint.

The Moderating Effect of Operations Efficiency on the Links between Environmental Performance and Financial Performance: The UK Evidence

  • Ramanathan, Ramakrishnan;Akanni, Adewole Oluwatomi
    • Asian Journal of Innovation and Policy
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    • 제4권1호
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    • pp.76-102
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    • 2015
  • Drawing upon the resource-based-view of a firm, we investigate the moderating role of operations efficiency on the link between environmental and financial performance. Extant literature has highlighted that operations efficiency is closely associated with the environmental/financial performance of firms, but no empirical study has investigated how operations efficiency affects the link between environmental and financial performance. We argue that operations efficiency could act as a moderator of this relationship. To test the hypothesized relationships, we have used available secondary quantitative UK data, namely data on the environmental/financial performance of Britain's most admired companies. By employing moderated regression analysis, we have found strong evidence for the moderating impact of operations efficiency. Our results are useful to managers in that they show that improvements in operations efficiency in a company can also help improve environmental/financial performance and vice versa.

아동기 주의력결핍 과잉행동장애의 유해환경인자 (Harmful Environmental Factors Leading to Attention-Deficit Hyperactivity Disorder)

  • 권호장;하미나;김붕년;임명호
    • Journal of the Korean Academy of Child and Adolescent Psychiatry
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    • 제27권4호
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    • pp.267-277
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    • 2016
  • Attention-deficit hyperactivity disorder (ADHD) is a common, childhood-onset, neuropsychiatric disorder with an estimated prevalence of 2-7.6% in Korean children. Although the etiology of ADHD is not well understood, evidence from genetic factor and environmental factor studies suggests that ADHD results from a gene environmental interaction. In the current study, we reviewed the evidence for and clinical implications of the hypothetical roles of organophosphate pesticides, organochlorine pesticides, polychlorinated biphenyls, phthalate, bisphenol, polyfluoroalkyl chemicals, polycyclic aromatic hydrocarbons, mercury, lead, arsenic, cadmium, manganese, tobacco, alcohol as harmful risk factors in the development of ADHD.

한식레스토랑에서의 환경단서와 체험요인이 브랜드태도에 미치는 영향: 브랜드명성의 조절역할을 중심으로 (The Effects of Environmental Evidence and Experiences on Brand Attitude: Focused on a Moderator Role of Brand Reputation in Korean Restaurant)

  • 유영진
    • 한국콘텐츠학회논문지
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    • 제14권1호
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    • pp.488-504
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    • 2014
  • 본 연구의 목적은 한식당에서 환경단서와 체험요인이 브랜드태도에 영향을 미치는지와 이러한 관계에서 브랜드명성이 조절변수 역할을 하는지를 파악하는데 있었다. 이러한 연구목적을 달성하기 위하여 한국의 한식당 중에서 매출액을 기준으로 하여 상위 20위 안에 드는 H와 B 외식업체를 방문했던 고객들을 대상으로 설문지를 배포하여 자료를 수집하였다. 총 353부의 설문지가 위계적 회귀분석을 사용하여 통계분석 되었으며, 다음과 같은 주요한 4가지 사항이 발견되었다. 첫째, 환경단서 중 공간성, 심미성, 청결성, 쾌적성이 브랜드태도에 영향을 미쳤다. 둘째, 체험유형에 속하는 행동, 관계, 인지, 감성 모두가 브랜드태도에 영향을 미치는 것으로 나타났다. 셋째, 브랜드명성은 환경단서 중 심미성차원과 브랜드태도 간에만 조절역할을 한 것으로 나타났다. 넷째, 브랜드명성은 체험 중 행동과 브랜드태도 간에만 조절역할을 한 것으로 나타났다. 이와 같은 결과들을 바탕으로 한식당 마케터들은 환경단서와 체험을 강화시키고, 마케팅 기법을 활용하여 브랜드명성을 강화시켜야 한다.

MECHANISMS AND APPLICATIONS OF NSAIDS IN THE CHEMOPREVENTION OF CANCER

  • Steele, Vernon E.
    • 한국독성학회:학술대회논문집
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    • 한국독성학회 2001년도 International Symposium on Dietary and Medicinal Antimutgens and Anticarcinogens
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    • pp.27-27
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    • 2001
  • Significant evidence exists which demonstrates that inflammation predisposes and promotes the cancer process in humans. Chronic inflammation can induce cancer in a variety of organ sites, including bowel and lung. There is also firm evidence that induced cyclooxygenases and nitric oxide synthetases, prostaglandins, and inflammatory cytokines can promote and accelerate the carcinogenic process.(omitted)

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운전자 인지특성 분석을 통한 횡단보도 디자인 연구 (Pedestrian Crosswalk Design based on the Assessment of Driver Recognition)

  • 이주영
    • 한국환경과학회지
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    • 제29권4호
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    • pp.361-369
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    • 2020
  • With the increasing role of environmental design in promoting urban safety, new design attempts have been made to improve pedestrian safety in crosswalks. This study proposes an evidence-based design solution for improving crosswalk function by conducting simulations and field experiments. Drivers with more than one-year driving experience participated in this study. Four different crosswalk design patterns were prepared: (1) a zebra pattern, (2) zebra pattern with colored triangles, (3) 3D pattern, and (4) art pattern with unique colors and design. The results supported that the zebra pattern with colored triangles could be the most effective solution for crosswalk design by increasing visibility, attention, deceleration, and landscape aesthetics. This study provided objective data to support the performance of various crosswalk patterns and suggested the need to reevaluate the present crosswalk design guidelines.

환경보전 정책에 관한 제 방법의 상대적 효율성 연구 - 판매가능한 배출허용권제도를 중심으로 -

  • 이선;노공균;이재근
    • 자원ㆍ환경경제연구
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    • 제1권1호
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    • pp.115-149
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    • 1991
  • In evaluating current environmental protection policy, economists often note that current regulations are more costly than necessary to meet environmental quality standards. While the a priori case can be made that current regulatory approaches entail higher-than-necessary costs to attain environmental standards, there is relatively little empirical evidence to support this claim in Korea. The purpose of this analysis is to supply some of the missing evidence by presenting the results of one study that assesses some of the potential savings associated with implementing economic, rather than command-and-control regulatory approaches to abate one type of air pollution in one region, in Korea, Specifically, the analysis examine the costs of meeting a long-term standard for TSP under the alternative control strategies for stationary sources of TSP in Ulsan Industrial Complex region. The alternative strategies that are considered are current command-and-control and various marketable permit designs. The analysis shows that the most efficient policy of emissions control is economic approaches, supporting results of previous empirical studies conducted in other countries.

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먼지 피해의 환경분쟁조정 사례 분석과 배상액 산정안 제언 (Dispute Mediation Cases and Suggestions for Calculating Compensation for Dust Damage)

  • 박정호
    • 한국환경과학회지
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    • 제32권10호
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    • pp.693-701
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    • 2023
  • In this study, we analyzed 82 dust damage dispute mediation cases over the past 5 years and evaluated cases where the probability of damage was verified through dust concentration measurement, modeling prediction, and chemical composition analysis. The cause of dust damage was a construction site, which accounted for most of the damage (97%), and was closely related to the distance from the construction site, total floor area of the construction site, and construction duration. Compensation was decided in only 33% of dust damage cases, and in only 6% (five cases) were damages determined using scientific techniques such as dust measurement, and forecasting. The main criteria for determining compensation were whether administrative measures were taken and evidence of damage in the form of videos and photos. In the future, measuring or model for the amount of dust damage is necessary to determine whether the limit has been exceeded and to revise the standard for calculating compensation through various lines of evidence of dust damage.