• Title/Summary/Keyword: Climate warming

Search Result 885, Processing Time 0.028 seconds

A Study on Global Warming Education Contents in Science Textbook of the Korea, Japan and U.S.A. (한국, 일본, 미국 중등학교 과학 교과서에 나타난 지구온난화 교육 내용에 관한 연구)

  • Jung, Yun-Jung;Choi, Don-Hung;Cho, Seong-Hoa
    • Hwankyungkyoyuk
    • /
    • v.23 no.3
    • /
    • pp.50-61
    • /
    • 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.

  • PDF

A Study on Interdisciplinary Education Model of Using Climate Change Film-Focusing on Documentary An Inconvenient Truth (기후변화 영화를 활용한 융합교육 모형연구: 다큐멘터리 <불편한 진실>을 중심으로)

  • Hwang, Young-mee;Oh, Jung-jin
    • Journal of Engineering Education Research
    • /
    • v.19 no.5
    • /
    • pp.57-64
    • /
    • 2016
  • This study is about interdisciplinary education model of using Davis Guggenheim's documentary film on global warming which is a big concern in climate change issues, An Inconvenient Truth. It based on Al Gore's slide speech. Through a course student analyzed the cause and phenomenon of global warming resulted from increase of $CO_2$ by using fossil fuel and its environmental science effects-heat wave, desertification, tornado, hurricane, sea level rise caused by melting glaciers, destroying ecosystem like habitat degradation of wild animals, for example polar bear, extreme cold wave caused by change of ocean currents- of global warming. After, student discussed of efforts to prevent global warming. This educational model is appropriate for lower grade student of environmental engineering and also available for converged majors or general education class.

Changes in the Tsushima Warm Current and the Impact under a Global Warming Scenario in Coupled Climate Models (기후모델에 나타난 미래기후에서 쓰시마난류의 변화와 그 영향)

  • Choi, A-Ra;Park, Young-Gyu;Choi, Hui Jin
    • Ocean and Polar Research
    • /
    • v.35 no.2
    • /
    • pp.127-134
    • /
    • 2013
  • In this study we investigated changes in the Tsushima Warm Current (TWC) under the global warming scenario RCP 4.5 by analysing the results from the World Climate Research Program's (WCRP) Coupled Model Intercomparison Project Phase 5 (CMIP5). Among the four models that had been employed to analyse the Tsushima Warm Current during the 20th Century, in the CSIRO-Mk3.6.0 and HadGEM2-CC models the transports of the Tsushima Warm Current were 2.8 Sv and 2.1 Sv, respectively, and comparable to observed transport, which is between 2.4 and 2.77 Sv. In the other two models the transports were much greater or smaller than the observed estimates. Using the two models that properly reproduced the transport of the Tsushima Warm Current we investigated the response of the current under the global warming scenario. In both models the volume transports and the temperature were greater in the future climate scenario. Warm advection into the East Sea was intensified to raise the temperature and consequently the heat loss to the air.

Analysis of climate change mitigations by nuclear energy using nonlinear fuzzy set theory

  • Tae Ho Woo;Kyung Bae Jang;Chang Hyun Baek;Jong Du Choi
    • Nuclear Engineering and Technology
    • /
    • v.54 no.11
    • /
    • pp.4095-4101
    • /
    • 2022
  • Following the climate-related disasters considered by several efforts, the nuclear capacity needs to double by 2050 compared to 2015. So, it is reasonable to investigate global warming incorporated with the fuzzy set theory for nuclear energy consumption in the aspect of fuzziness and nonlinearity of temperature variations. The complex modeling is proposed for the enhanced assessment of climate change where simulations indicate the degree of influence with the Boolean values between 0.0 and 1.0 in the designed variables. In the case of OIL, there are many 1.0 values between 20th and 60th months in the simulations where there are 10 times more for a 1.0 value in influence. Hence, the temperature variable can give the effective time using this study for 100 months. In the analysis, the 1.0 value in NUCLEAR means the highest influence of the modeling as the temperature increases resulting in global warming. In detail, the first influence happens near the 8th month and then there are four times more influences than effects in the early part of the temperature mitigation. Eventually, in the GLOBAL WARMING, the highest peak is around the 20th month, and then it is stabilized.

Projection of climate change effects on the potential distribution of Abeliophyllum distichum in Korea (기후변화에 따른 우리나라 미선나무의 분포변화 예측)

  • Lee, Sang-Hyuk;Choi, Jae-Yong;Lee, You-Mi
    • Korean Journal of Agricultural Science
    • /
    • v.38 no.2
    • /
    • pp.219-225
    • /
    • 2011
  • Changes in biota, species distribution range shift and catastrophic climate influence due to recent global warming have been observed during the last century. Since global warming affects various sectors, such as agriculture and vegetation, it is important to predict more accurate impact of future climate change. The purpose of this study is to examine the observed distribution of Abeliophyllum distichum in the Korean peninsula. For this purpose, two period (present and future) climate data were used. Mean data between 1950 and 2000, were used as the present value and the year 2050 and 2080 data from A1B senario in IPCC SRES were used for the future value. Potential habitation is analyzed by MaxEnt(Maximum Entropy model), and Abeliophyllum distichum's coordinates data were used as a dependent variable and independent variables are composed of environmental data such as BioClim, altitude, aspect and slope. The result of six types GCM mean calculation, the potential habitability decreased by 40-60% of the average existing distribution. The methodogies and results of this research can be applicable to the climate changing adaptation stratiegies for the biodiversity conservation.

Quantifying Climate Regulation of Terrestrial Ecosystems Using a Land-Atmosphere Interaction Model Over East Asia for the Last Half Century

  • Hong, Seungbum;Jang, Inyoung;Jeong, Heon-Mo
    • Proceedings of the National Institute of Ecology of the Republic of Korea
    • /
    • v.1 no.1
    • /
    • pp.58-67
    • /
    • 2020
  • Terrestrial ecosystems influence climate change via their climate regulation function, which is manifested within the carbon, water, and energy circulation between the atmosphere and surface. However, it has been challenging to quantify the climate regulation of terrestrial ecosystems and identify its regional distribution, which provides useful information for establishing regional climate-mitigation plans as well as facilitates better understanding of the interactions between the climate and land processes. In this study, a land surface model (LSM) that represents the land-atmosphere interactions and plant phenological variations was introduced to assess the contributions of terrestrial ecosystems to atmospheric warming or cooling effects over East Asia over the last half century. Three main climate-regulating components were simulated: net radiation flux, carbon exchange, and moisture flux at the surface. Then, the contribution of each component to the atmospheric warming or cooling (negative or positive feedback to the atmosphere, respectively) was investigated. The results showed that the terrestrial ecosystem over the Siberian region has shown a relatively large increase in positive feedback due to the enhancement of biogeochemical processes, indicating an offset effect to delay global warming. Meanwhile, the Gobi Desert shows different regional variations: increase in positive feedback in its southern part but increase in negative one in its eastern part, which implies the eastward movements of desert areas. As such, even though the LSM has limitations, this model approach to quantify the climate regulation is useful to extract the relevant characteristics in its spatio-temporal variations.

Assessment of Changes in Temperature and Primary Production over the East China Sea and South Sea during the 21st Century using an Earth System Model (지구시스템 모형을 이용한 21세기 동중국해와 남해의 수온과 일차생산 변화 평가)

  • Park, Young-Gyu;Choi, Sang-Hwa;Kim, Seon-Dong;Kim, Cheol-Ho
    • Ocean and Polar Research
    • /
    • v.34 no.2
    • /
    • pp.229-237
    • /
    • 2012
  • Using results from an Earth System model, we investigated change in primary production in the East China Sea, under a global warming scenario. As global warming progresses, the vertical stratification of water becomes stronger, and nutrient supply from the lower part to the upper part is reduced. Consequently, so is the primary production. In addition to the warming trend, there is strong decadal to interdecadal scale variability, and it takes a few decades before the warming trend surpasses natural variability. Thus, it would be very hard to investigate the global warming trend using data of several years' length.

Past and Future Temperature and Precipitation Changes over Korea using MM5 Model

  • Oh, Jai-Ho;Min, Young-Mi;Kim, Tae-Kook;Woo, Su-Min;Kwon, Won-Tae;Baek, Hee-Jeong
    • Proceedings of the Korean Quaternary Association Conference
    • /
    • 2004.06a
    • /
    • pp.29-29
    • /
    • 2004
  • Long term observational analysis by climatologists has confirmedthat the global warming is no longer a topic of debate among scientists andpolicy makers. According to the report of IPCC-2001 (Intergovernmental Panelon Climate Change), the global mean surface air temperature is increasinggradually. The reported increase of mean temperature is by 0.6 degree in the end of twentieth century. This could represent severe threat for propertylosses especially due to increase in the number of extreme weather arising out of global warming. period of model integration from 2001 to 2100 using output of ECHAM4/HOPE-G of Max Planet Institute of Meteorology (MPI) for IPCC SRES (Special Report on Emission Scenarios). The main results of this study indicate increase of surface air temperature by 6.20C and precipitation by 2.6% over Korea in the end of 21st century. Simulation results also show that there is increase in daily maximum and minimum temperatures while decrease in diurnal temperature range (DTR). DTR changes are diminished mainly due to relatively rapid increase of daily minimum temperature than that of daily maximumtemperature. It has been observed that increase in precipitation amount anddecrease in the number of rainy days lead to increase of pre precipitationintensity.

  • PDF

Uncertainties estimation of AOGCM-based climate scenarios for impact assessment on water resources (수자원 영향평가를 위한 기후변화 시나리오의 불확실성 평가)

  • Park E-Hyung;Im Eun-Soon;Kwon Won-Tae;Lee Eun-Jeong
    • Proceedings of the Korea Water Resources Association Conference
    • /
    • 2005.05b
    • /
    • pp.138-142
    • /
    • 2005
  • The change of precipitation and temperature due to the global. warming eventually caused the variation of water availability in terms of potential evapotranspiration, soil moisture, and runoff. In this reason national long-term water resource planning should be considered the effect of climate change. Study of AOGCM-based scenario to proposed the plausible future states of the climate system has become increasingly important for hydrological impact assessment. Future climate changes over East Asia are projected from the coupled atmosphere-ocean general circulation model (AOGCM) simulations based on Intergovernmental Panel on Climate Change (IPCC) Special Report on Emissions Scenarios (SRES) A2 and B2 scenarios using multi-model ensembles (MMEs) method (Min et al. 2004). MME method is used to reduce the uncertainty of individual models. However, the uncertainty increases are larger over the small area than the large area. It is demonstrated that the temperature increases is larger over continental area than oceanic area in the 21st century.

  • PDF

Current Issues on Climate Change and Water (기후변화의 쟁점과 물)

  • Yun, Zuwhan
    • Journal of Korean Society on Water Environment
    • /
    • v.25 no.5
    • /
    • pp.641-650
    • /
    • 2009
  • The IPCC's standing on the anthropogenic warming is discussed in this article. The differences between the climate alarmist and skeptics have been addressed in terms of scientific and policy stand point of view. The political and economical significances of climate change have been discussed, too. Although atmospheric temperature and rainfall precipitation are two most important factors in the climate change, most of the recent attentions have drawn on mainly temperature and $CO_2$ issue. In spite of argues on the uncertainty in anthropogenic warming related to $CO_2$, the inevitable climate change should correspondingly change the humanity in near feature.