• 한국초등과학교육학회지:초등과학교육
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• 제32권4호
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• pp.452-463
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• 2013

The purpose of this study was to identify the effectiveness of concepts on global warming, practical will and belief on global warming mitigation by experiments based on global warming program. For this study, 60 $6^{th}$ grade students were selected in two elementary schools. They were divided into an experimental group and a control group. The students of the experimental group took part in global warming program focusing experiments for 10 lessons during 2 weeks. The students of the control group were taught according to the regular curriculum of $6^{th}$ grade about global warming. To identify the effects of this program, both groups' students were tested on concepts on global warming, practical will and belief on global warming mitigation before and after the program implementation. Also the students of the experimental group wrote an essay and gave an interview about the program after implementation. The results were that the experimental group gained higher scores than the control group in the concepts on global warming. The programs improved students' practical will and belief on global warming mitigation. Also this program showed that the students systematically understood on global warming than existing classes in the regular curriculum.

• 한국환경교육학회지:환경교육
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• 제21권2호
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• pp.11-24
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• 2008

This research verifies the effect on environmental attitude and knowledge accomplishment by t-test as producing and running programs regarding global warming which is raised as a representative environmental issue subject to 6th grade-elementary students. For this, environmental education programs about global warming for elementary students are developed and applied 15 times by reconstituting classes based on the contents regarding global warming from the text books revised as of 7th course of study. The result is as below. First, some part of contents from social study and science of 6th grade elementary curriculum of 7th course of study was able to be reconstituted to 15 education programs. Secondly, the programs about global warming improved students' environmental attitude Application of the programs about global warming showed significant difference(p<.05) on building environmental attitude as it proved those are effective on both area of recognition level and practice level. The method used on the test had .866's Cronbach alpha modulus value therefore, it obtained reliability. Thirdly, the programs regarding global warming improved students' knowledge accomplishment. As a result of test for knowledge accomplishment which was executed with same method for attitude test, the application of the programs about global warming showed significant difference(p<.05) on improving students' knowledge accomplishment on the global warming therefore, it resulted that the application of the program is effective on knowledge acquirement.

• 과학교육연구지
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• 제35권2호
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• pp.274-282
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• 2011

이 연구는 초 중학생의 지구온난화와 기후변화에 대한 인식을 알아보고자 하였다. 이를 위해 기후변화현상, 지구온난화, 지구온난화의 원인과 영향, 지구온난화를 줄이기 위한 실천 등을 내용으로 하는 질문지를 개발하였다. 연구 대상자는 5학년 118명, 7학년 121명으로 중학교는 환경을 배우는 학교와 그렇지 않은 학교를 표집하였다. 연구 수행 결과는 다음과 같다. 첫째, 초 중학생들의 지구온난화와 기후변화에 대한 인식 수준은 낮았다. 둘째, 지구온난화에 대해 대부분 학생들은 온실가스, 빙하, 환경오염 등으로 인식하고 있었다. 또한 지구온난화의 원인에 대해서는 대부분의 학생들은 과학 개념을 가지고 있었으나, 일부 학생들은 지구온난화가 오존층 파괴로 일어난다는 오개념을 가지고 있었다. 셋째, 지구온난화의 원인에 대해 일부 초등학생과 중학생들은 유사한 오개념을 가지고 있었다.

• 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.

• 한국환경교육학회지:환경교육
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• 제22권3호
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• pp.31-48
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• 2009

The purpose of this study is to develop the elementary environmental textbook relevant to global warming based on responsibility ethics. To achieve the purpose, concrete study processes are as follows. First, the theory of responsibility ethics of Jonas was analyzed. Second, contents relevant to global warm ing on textbooks and guide books in the 7th elementary curriculum was analyzed through reference study. Third, the environmental textbook relevant to global warming for 5th and 6th grade in the elementary school was developed which was based on responsibility. The results of this study are as follows. First, responsibility ethics of Jonas has a lot of merit if it is applied to environment education. Second, according to the analysis into textbooks and guide books in the 7th elementary curriculum, the contents concerning global warming are very poor in both quantity and quality. Third, the elementary environmental textbook relevant to global warming for 5th and 6th grade students was developed. This textbook based on responsibility ethics will be expected to be efficient on the learning compared with subsidiary textbook in use.

• 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.

• The Korean Journal of Ecology
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• 제22권6호
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• pp.363-369
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• 1999

Reconstruction of the past vegetational changes of Korea in connection with climate changes enables to understand the impacts of past and future global warming on alpine vegetation. Despite the early appearance of the cold-tolerant vegetation since the Mesozoic Era. the occurrence of warmth-tolerant vegetation during the Oligocene and Miocene implies that most of alpine and subalpine vegetations have been confined to the alpine and subalpine belts of northern Korean Peninsula. The presence of cold-episodes during the Pleistocene. however. might have caused a general southward and downslope expansions of cold-tolerant alpine and subalpine vegetation. But the climatic warming trend during the Holocene or post-glacial period eventually has isolated cold-tolerant alpine and subalpine vegetation mainly in the northern Korea. but also on scattered high mountains in the southern Korea. The presence of numerous arctic-alpine and alpine plants on the alpine and subalpine belts is mainly due to their relative degree of sensitivity to high summer temperatures. Global warming would cause important changes in species composition and altitudinal distributional pattern. The altitudinal migration of temperate vegetation upward caused by climatic warming would eventually devastate alpine plants.

• The Korean Journal of Ecology
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• 제23권4호
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• pp.293-298
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• 2000

To study the effect of global warming on the growth of plants and plant populations throughout their life cycle under a field-like condition, we constructed a Temperature Gradient Chamber (TGC) in Tsukuba, Japan. The chamber had slender shape : 30 m long. 3 m wide, and 2.5 m high. That satisfactory performance was confirmed by a test throughout all seasons in 1998: the projected global warming condition in the near future was simulated. That is, independent of a great daily or seasonal change in ambient meteorological conditions, air temperatures at the air outlet were warmed 5$^{\circ}C$ higher than those at the ambient (the annual mean was 14.3$^{\circ}C$) with precision of ${\pm}$0.2$^{\circ}C$ (the annual means were 19.2$^{\circ}C$) with a rising rate of approximately 1$^{\circ}C$ every 5 m. This chamber will enable us to study the effects of global warming on growth of plants and plant populations because their abilities to control air temperature are excellent. TGC is expected that it would be utilized for studying the effect of global warming on plant growth under natural weather conditions.

• 한국수자원학회:학술대회논문집
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• 한국수자원학회 2015년도 학술발표회
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• pp.226-226
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• 2015

The complex climate system regarding human actions is well represented through global climate models (GCMs). The output from GCMs provides useful information about the rate and magnitude of future climate change. Especially, the temperature variable is most reliable among other GCM outputs. However, hydrological variables (e.g. precipitation) from GCM outputs for future climate change contain too high uncertainty to use in practice. Therefore, we propose a method that simulates temperature variable with increasing in a certain level (e.g. 0.5oC or 1.0oC increase) as a global warming scenario from observed data. In addition, a hydrometeorological variable can be simulated employing block-wise sampling technique associated with the temperature simulation. The proposed method was tested for assessing the future change of the seasonal precipitation in South Korea under global warming scenario. The results illustrate that the proposed method is a good alternative to levy the variation of hydrological variables under global warming condition.

• 한국진공학회:학술대회논문집
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• 한국진공학회 2012년도 제42회 동계 정기 학술대회 초록집
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• pp.459-459
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• 2012

Recently, the discharge of global warming gases in dry etching process of TFT-LCD display industry is a serious issue because perfluorocarbon compound (PFC) gas causes global warming effects. PFCs including CF4, C2F6, C3F8, CHF3, NF3 and SF6 are widely used as etching and cleaning gases. In particular, the SF6 gas is chemically stable compounds. However, these gases have large global warming potential (GWP100 = 24,900) and lifetime (3,200). In this work, we chose C3F6O gas which has a very low GWP (GWP100 = <100) and lifetime (< 1) as a replacement gas. This study investigated the effects of the gas flow ratio of C3F6O/O2 and process pressure in dual-frequency capacitively coupled plasma (CCP) etcher on global warming effects. Also, we compared global warming effects of C3F6O gas with those of SF6 gas during dry etching of a patterned positive type photo-resist/silicon nitride/glass substrate. The etch rate measurements and emission of by-products were analyzed by scanning electron Microscopy (SEM; HITACI, S-3500H) and Fourier transform infrared spectroscopy (FT-IR; MIDAC, I2000), respectively. Calculation of MMTCE (million metric ton carbon equivalents) based on the emitted by-products were performed during etching by controlling various process parameters. The evaluation procedure and results will be discussed in detail.