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In this chapter, we begin by reviewing the evidence on climate change, its consequences for temperature and precipitation, and the resulting mechanisms through which it affects crop production. These include: the impact of temperature on crop development, how elevated CO2 levels affect plant photosynthesis and respiration, increased water stress for crops due to higher temperatures and uneven rainfall, extreme temperature damage, and additional crop damage from pests and disease. We then review the empirical evidence quantifying some of these impacts historically and use these as a basis for some global simulations of climate change impacts using the SIMPLE model. In addition to analyzing the basic impacts on land use and food prices, we also explore potential responses to climate change, including adaptation through additional investments in irrigation, as well as the development of heat and drought tolerant crop varieties via increased funding for agricultural research. We also show how successful adaptation to climate change can offer significant mitigation benefits, stemming from the fact that improved yields lessen the need for land conversion, which in turn reduces further emissions from land use change.
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- Climate Change Impacts in Agriculture
Thomas W. Hertel
Uris Lantz C. Baldos
- Springer International Publishing
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