Global Warming and Decreased Crops

Paper Summary:

The paper discusses how, as the Earth's average temperature rises, crop production decreases. The paper notes the significance of a decrease in crop production and provides a literature review. The paper shows how, in general, global warming has a negative effect on crop production and the unpredictability of climatic change can also have a negative effect on crop production when farmers are ill-prepared. The paper points out, however, that although many crops will suffer, certain crops such as winter wheat seem to thrive in the global warming models.

Outline:
Introduction
Hypothesis
Conceptualization
Journal Article Summaries
Summary

From the Paper:

"Peng et al. (2004) explore the affect of higher night temperatures, from global warming, on rice production. They evaluated these effects by a direct study on the effects of global warming on crop production, by analyzing weather data at the International Rice Research Institute Farm, from the years 1979 to 2003. They examined temperature trends and how they related to rice yield, by using the data obtained from irrigated field experiments, that were conducted at the International Rice Research Institute Farm. The researchers found that rice production fell 10 percent for each 1o C increase in minimum temperature. However, maximum temperature had an insignificant effect on crop yield. Therefore the researchers concluded that there was direct evidence that rice yields decreased with increased nighttime temperature associated with global warming."

Sample of Sources Used:

• Chipanshi, A., Chanda, R., & Totolo, O. (Dec 2003). Vulnerability assessment of the maize and sorghum crops to climate change in Botswana. Climatic Change, 61(3). Retrieved February 8, 2007, from the ProQuest database.
• Dhakwa, G. & Campbell, L. (Dec 1998). Potential effects of differential day-night warming in global climate change on crop production. Climatic Change, 40(3). Retrieved February 8, 2007, from the ProQuest database.
• Isik, M. & Devadoss, S. (20 April 2006). An analysis of the impact of climate change on crop yields and yield variability. Applied Economics, 38(7). Retrieved February 8, 2007, from the Academic OneFile database.
• Peng, S., Huang, J., Sheehy, J., Laza, R., Visperas, R., Zhong, X., Centeneo, G., Khush, G., & Cassman, K. (6 July 2004). Rice yields decline with higher night temperature from global warming. Proceedings of the National Academy of Sciences of the United States of America, 101(27). Retrieved February 8, 2007, from the PNAS database.
• Philander, G. (Spring 2004). On El Nino & the uncertain science of global warming. Daedalus, 133(2). Retrieved February 8, 2007, from Academic OneFile database.

More papers on Global Warming and Decreased Crops:

• Research Paper # 97143 : "Global Warming and Crop Production"
• Term Paper # 125177 : "Global Warming and Technology"
• Research Paper # 84783 : "Global Warming and Possible Reactions"

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