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International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2017, Volume : 5, Issue : 3
First page : (335) Last page : (339)
Article doi: http://dx.doi.org/10.18782/2320-7051.4053

Global Warming: Its Impact and Implication on Field Crop Production

Rajdeep Mundiyara* and Prem Kumar, Mamta Bajya and Leela Bhat
Seed Officer, Rajasthan State Seeds Corporation, Mandore, Jodhpur, Rajasthan, India
*Corresponding Author E-mail: rmundiyara5@gmail.com
Received: 15.06.2017  |  Revised: 23.06.2017   |  Accepted: 25.06.2017  


Global warming refers to a rise in the temperature of the surface of the earth. An increase in the concentration of greenhouse gases leads to an increase in the magnitude of the greenhouse effect (called enhanced greenhouse effect). Climate change is now unequivocal, particularly in terms of increasing temperature, increasing CO2 concentration, widespread melting of snow and ice, and rising global average sea level, while the increase in the frequency of drought is very likely but not as certain. Climate change will affect forest genetic resources via many different demographic, physiological and genetic processes. Extreme climatic events that kill large numbers of trees may become more common. More gradual changes in temperature and precipitation may inhibit the capacity of forests to regenerate. In some places, pest and disease attack may become more severe because climatic conditions become more favorable for the attacking species or because climate induced stress makes trees more susceptible to attack. This results in global warming. Global warming is the observed century-scale rise in the average temperature of Earth's climate system. Since 1971, 90% of the increased energy has been stored in the oceans, mostly in the 0 to 700m region. Despite the oceans' dominant role in energy storage, the term "global warming" is also used to refer to increases in average temperature of the air and sea at Earth's surface. Since the early 20th century, the global air and sea surface temperature has increased about 0.8 °C (1.4 °F), with about two-thirds of the increase occurring since 1980. Each of the last three decades has been successively warmer at the Earth's surface than any preceding decade since 1850. IPCC stated that the largest driver of global warming is carbon dioxide (CO2) emissions from fossil fuel combustion, cement production, and land use changes such as deforestation.

Key words: Global Warming, Temperature, Earth, Forest, Genetic Resources.

Full Text : PDF; Journal doi : http://dx.doi.org/10.18782

Cite this article: Mundiyara, R., Kumar, P., Bajya, M. and Leela Bhat, L., Global Warming: Its Impact and Implication on Field Crop Production, Int. J. Pure App. Biosci.5(3): 335-339 (2017). doi: http://dx.doi.org/10.18782/2320-7051.4053