• 한국환경교육학회지:환경교육
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• 제23권3호
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• pp.50-61
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• 2010

As the influence of mankind's actions grows on the earth's climate, the necessity of climate change education is increasing everyday. Therefore, this study will discuss desirable courses about climate changes education that can be used throughout the world. It is meaningful to try to compare the contents and scope of earth global warming education courses of different nations. where education and a research about earth global warming occur simlutaneously. This is key because global warming is not just a national issue, but an international issue. Therefore this study need to understand the status of environmental education is over the world to devise an improvement plan help to solve the problem of climate change on an international level. Therefore, this study compared, the global warming educational contents which appeared in Korean textbooks to Japanese and American textbooks, and analyzed commonalities and differences of each. Also, we will discuss desirable global warming educational instructional strategies. This study analyzed the present situation of nations by looking at common points and differences using an analysis form. Even though the researchers of an each nation analyzed the teaching material through common analysis forms, this study utilized a common analysis method with a colleague researcher regarding environmental education, environment, environmental science to increase the validity of the study in each nation. Also the difference and similarities were aggregated as This study collected the analysis results of each nation. The researchers utilized the results of the analyses to engage in repeated discussion and the sharing of results.

• 한국작물학회지
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• 제57권2호
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• pp.106-112
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• 2012

본 연구는 $CO_2$농도와 온도가 상승함에 따라 인삼의 생육반응 및 광합성 특성의 변화를 알아보기 위해 실험하였다. 유리 온실 안에 대조구(대기중 $CO_2$ 농도)와 $CO_2$ + 온도상승구(750-800 ppm, $2^{\circ}C$ 상승)로 나누어 비교하였으며 다음과 같다. 1. 인삼의 개엽율은 1년생 인삼을 이식한 후 1주일 이후인 4월 6일에 $CO_2$ + 온도상승구의 개엽율이 대조구보다 더 높았다. 그러나 최종 개엽율은 $CO_2$ + 온도상승구간 차이가 없었다. 2. 꽃이 나오는 시기는 대조구보다 $CO_2$ + 온도상승구가 3일 빨랐고, 열매관찰시기와 열매 성숙시기는 대조구와 $CO_2$ + 온도상승구간 차이가 없었다. 3. 인삼의 줄기길이는 대조구보다 $CO_2$ + 온도상승구에서 길었고, 잎수는 대조구보다 $CO_2$ + 온도상승구에서 많았다. 4. 지하부 생량무게는 대조구와 $CO_2$ + 온도상승구간 차이가 없었다. 5. 광합성은 모두 대조구보다 $CO_2$ + 온도상승구가 높았다. 대조구 내에서는 년도별 광합성이 차이가 있었다. 하지만 $CO_2$ + 온도상승구에는 1년생과 2년생 간 차이가 없었다. 6. 증산률은 대조구와 $CO_2$ + 온도상승구에서 모두 년생간 차이가 있었다. 1년생은 대조구보다 $CO_2$ + 온도상승구가 높았고, 2년생은 대조구와 $CO_2$ + 온도상승구간 차이가 없었다. 7. 수분이용효율은 대조구와 $CO_2$ + 온도상승구에서 모두 1년생과 2년생간 차이가 있었다. 1년생은 대조구와 $CO_2$ + 온도상승구간 차이가 없었고, 2년생은 대조구 보다 $CO_2$ + 온도상승구가 높았다. 이상으로 볼 때 지구온난화는 인삼의 생육과 생리 생태학적 반응에 다소 긍정적인 영향을 준다.

• 한국조경학회지
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• 제34권6호
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• pp.39-53
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• 2007

Unlike conventional roof landscaping, where various kinds of plants and structures are employed, a grass roof is a roof on which herbaceous plants are grown in planting medium and which is not accessed or maintained, mainly because it doesn't have sufficient load capacity to support a regular roof garden. They are mostly built on existing roofs, whether flat slab or gabled. Planting on roofs has numerous advantages, such as creating a biotope, purifying urban air, adding moisture to the atmosphere, storing rain water, preventing flash floods, reducing energy use for heating and air conditioning, enhancing the urban landscape and providing relaxation to the city dwellers, not to mention the alleviation of global warming by absorbing $CO_2$. In addition to the general merits of roof planting, the grass roof has its own unique qualities. Only herbaceous species are planted on the roof, resulting in light weight which allows roofs of existing buildings to be planted without structural reinforcement. The species chosen are mostly short, tough perennials that don't need to be maintained. These conditions provide an ideal situation where massive planting can be done in urban areas where roofs are often the only and definitely the largest space available to be planted. If roofs are planted on a massive scale they can play a significant role in alleviating global warming, heat island effects and energy shortages. Despite the advantages of grass roofs, there are some problems. The most significant problem is the invasion of neighboring plants. They may be brought in with the planting medium, by birds or by wind. These plants have little aesthetic value comparing to the chosen species and are usually taller. Eventually they dominate and prevail over the original species. The intended planting design disappears and the roof comes to look wild. Since the primary value of a grass roof is ecological, a change in attitude towards what constitutes beauty on the roofscape is necessary. Instead of keeping the roof neat through constant maintenance, people must learn that the wild grass with bird's nests on their roof is more beautiful as it is.

• Journal of Ecology and Environment
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• 제33권3호
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• pp.195-204
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• 2010

In the study, the effects of elevated $CO_2$ and temperature on the photosynthetic characteristics, chlorophyll content, nitrogen content, carbon content, and C/N ratio of Phytolacca insularis and Phytolacca americana were examined under control (ambient $CO_2+$ ambient temperature) and treatment (elevated $CO_2+$ elevated temperature) for 2 years (2008 and 2009). The photosynthetic rate, transpiration rate and water use efficiency of two plant species were higher under the treatment than the under the control. The stomatal conductance of P. insularis was higher under the control, but that of P. americana was not significantly affected by $CO_2$ and temperature under the treatment. The chlorophyll contents of two species were decreased about 72.5% and 20%, respectively, by elevated $CO_2$ and temperature. The nitrogen contents of two species were not significantly altered by increase in $CO_2$ and temperature. The carbon contents of the two species were higher under the treatment than under the control. The C/N ratio of P. insularis was higher under the treatment but that of P. americana was not significantly affected by $CO_2$ and temperature. These results demonstrated that the physiological responses of P. insularis native plants might be more sensitively influenced by a $CO_2$-mediated global warming situation than those of the P. americana invasive plants.

• 한국펄프종이공학회:학술대회논문집
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• 한국펄프종이공학회 2011년도 춘계학술발표회 논문집
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• pp.171-178
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• 2011

During the last decades, global warming from the increased amount of greenhouse gases, mainly carbon dioxide has become a major political and scientific issue. Burning fossil fuels (natural gas, coal and oil) releases $CO_2$, which is also a major cause of global warming. Among the clean environment, wood pellets are considered as promising renewable fossil fuels because of clean burning characteristics, reduction of particulate and NOx emission from combustion. In Korea, more than 50% pellets have to be imported every year because of shortage of feedstocks. On the other hand, about 80% of wood pulps are greatly dependent upon overseas products due to limited forest resources. Under this situation, this study explored how efficiently we have to use forest biomass instead of total dependence on wood as raw materials for pellets.

• 한국환경생태학회:학술대회논문집
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• 한국환경생태학회 2009년 학술대회 논문집 2호
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• pp.1-16
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• 2009

Japan is one of the major forest-rich countries in the world with two thirds of its national territory covered with forests. The various functions of forests, including the prevention of global warming, conservation of national land, recharging of water resources, and maintenance of biotic diversity, play an important role in our safe, secure, and comfortable living. With the increasing national expectations on the role of forests to contribute to the prevention of global warming and "Accelerating forest carbon-sink measures to achieve Kyoto Protocol Commitment", it is necessary to make efforts toward a large-scale forest regeneration in order to secure an absorption of 13 million carbon tons through forest carbon sink for the achievement of the target of six percent reduction under the Kyoto Protocol. Most importantly, however, is to accelerate the measures for forests as absorption sources, including thinning and other forestry management activities. However, there is a situation, among others, where thinning is not implemented properly due to the decreased willingness of forest owners to manage forests, because of the long-term low demand for domestic lumber and lumber prices. In addition, forestry workers are aging and decreasing in number. Thus, the circumstances surrounding forestry are severe. It is necessary for the protection of our precious forests to make efforts to create and maintain forests with activities that involve citizens such as the "National Movement for Utsukushii Mori Zukuri(Fostering Beautiful Forests)".

• 환경영향평가
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• 제20권2호
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• pp.249-256
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• 2011

Causing by green house gas emission, global warming is being accelerated significantly. This global warming cause world climate to change quiet different than before and we call this phenomenon is Climate Change. Environmental Impact Assessment being implemented in Korea is to prevent predicted environmental impacts from deteriorating within the domestic information and situation. As the climate change is getting severe, new meteorological records can be occurred which is exceeded existing statistical data. According to KMA(Korea Meteorological Administration) data, maximum value of precipitation and temperature in many regions changed with new data within last decade. And these events accompanied with landslides and flooding, and these also affected on water quality in rivers and lakes. According to impacts by climate change, disasters and accidents from heavy rain are the most apprehensive parts. And water pollution caused by overflowed non-point sources during heavy rain fall, fugitive dust caused by long-term drought, and sea level rise and Tsunami may affect on seaside industrial complex should be worth consideration. In this review, necessity of mutual consideration with influences of climate change was considered adding on existing guideline.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2006년도 제37회 하계학술대회 논문집 B
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• pp.1167-1168
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• 2006

Recently, the concern for environmental issue has been rising in the world such as global warming and breaking of ozone barrier by exhausting carbon dioxide(CO2) and Freon. In this situation, Photovoltaic(PV) and hydrogen energy system for utilizing clean and renewable energy was highlighted to contribute very much against the global warming prevention. Until now, authors have studied EMTDC model Development of Solar-powered Hydrogen production system and manufactured the 600W class actual PV-SPE system. Which was established in 2004 to produce highly pure hydrogen energized by PV power generation system. Sooner, authors will establish 100kW class PV-SPE system. Economically, this system produce large amount of hydrogen. In this paper, all data of 100kW class PV-SPE system will be simulated by using PSCAD/EMTDC.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2021년도 봄 학술논문 발표대회
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• pp.146-147
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• 2021

An increase in carbon emissions leads to the problem of global warming and is an issue to be solved in other countries. The problem of carbon dioxide has many effects not only on global warming but also on people. According to the World Health Organization (WHO), 4.3 million people have died because harmful substances generated indoors cannot be discharged to the outside and accumulate in the human body through the respiratory tract. In response to this situation, in order to reduce the generation of pollutants in the building itself, soak into lightweight bubble concrete to adsorb and purify indoor pollutants, mix charcoal, investigate the appropriate amount and physical characteristics, and check carbon dioxide This is an experiment for grasping the adsorption capacity, and the results are as follows. As the replacement rate of rice husk charcoal increased, the compressive strength tended to decrease, and the carbon dioxide reduction rate tended to increase. It is judged that the charcoal of rice husks shows a low density and the physical adsorption is smooth due to the porous structure. Since it is excellent in the basic physical properties and carbon dioxide adsorption surface of this experiment, it is judged that it has sufficient potential for use as an indoor finishing material.

• 한국습지학회지
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• 제15권2호
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• pp.171-177
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• 2013

한반도의 참나무 중 하천변 잠재자연식생인 졸참나무와 갈참나무를 대상으로 지구온난화의 핵심 요소인 $CO_2$농도와 온도를 상승시킬 때 잎의 형태학적 반응이 어떻게 일어나는지 알아보고자 유리온실 내에서 대기 중의 $CO_2$농도를 그대로 반영한 대조구와 이보다 $CO_2$농도는 약 1.6배와 온도는 $2.2^{\circ}C$상승시킨 온난화처리구에서 실험하여 관찰하였다. 그 결과, 졸참나무와 갈참나무는 $CO_2$농도와 온도의 상승으로 인하여 잎폭 길이, 잎몸 무게 그리고 엽면적이 증가하고 잎 수와 비엽면적은 감소하는 경향을 나타냈다. 졸참나무는 잎폭 길이, 잎몸 길이, 잎몸 무게, 잎 수, 엽면적 그리고 비엽면적 모두 대조구와 온난화처리구 간에 차이가 없었다. 그러나 갈참나무는 잎폭 길이와 잎몸 무게의 증가, 비엽면적의 감소가 뚜렷하였다. 이상의 잎의 형태학적 반응으로 볼 때, 갈참나무는 $CO_2$농도와 온도에 대하여 졸참나무 보다 민감하게 반응한다는 것을 알 수 있다. 주성분분석 결과, 두 종은 요인 1과 2에 의해 대조구와 온난화처리구에서 배열에 차이가 있었고, 온난화처리에 대한 변화는 졸참나무보다 갈참나무에서 명확히 구별되었다.