gesjGEOGRAPHY, ENVIRONMENT, SUSTAINABILITYGEOGRAPHY, ENVIRONMENT, SUSTAINABILITY2071-93882542-1565Russian Geographical Society10.24057/2071-9388-2015-8-2-30-44gesj-35Research ArticleENVIRONMENTОкружающая средаGLOBAL CLIMATE MODEL:A COMPREHENSIVE TOOL IN CLIMATE CHANGE IMPACT STUDIESSinghDharmaveerveermnnnit@gmail.comJainSanjay K.sanjay.nih@nih.ernet.inGuptaR. D.gupta.rdg@gmail.comMotilal Nehru National Institute of Technology Allahabad - 211004, (India)Russian FederationNational Institute of Hydrology, Roorkee - 247667 (India)Russian FederationMotilal Nehru National Institute of Technology, Allahabad - 211004, Uttar Pradesh (India)Russian Federation201501062015823044Copyright © Singh D., Jain S.K., Gupta R.D., 20152015Singh D., Jain S.K., Gupta R.D.Singh D., Jain S.K., Gupta R.D.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://ges.rgo.ru/jour/article/view/35

There is growing concern, how and to what extent future changes in climate will affect human society and natural environments. Continuous emissions of Green House Gasses (GHGs) at or above current rates will cause further warming. This, in turn, may modify global climate system during 21st century that very likely would have larger impacts than those observed during 20th century. At present, Global Climate Models (GCMs) are only the most reliable tools available for studying behaviour of the climate system. This paper presents a comprehensive review of GCMs including their development and applications in climate change impacts studies. Following a discussion of the limitations of GCMs at regional and local scales, different approaches of downscaling are discussed in detail.

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The authors declare that there are no conflicts of interest present.