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How much does climate change add to the challenge of feeding the planet this century?

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Title How much does climate change add to the challenge of feeding the planet this century?
 
Creator Aggarwal, Pramod K.
Vyas, Shalika
Thornton, Philip K.
Campbell, Bruce M.
 
Subject food security
agriculture
climate change
yields
 
Description The impacts of climate change on crop yields, as projected by a slew of impact assessments carried out since the 1980s, have brought the issue of future food insecurity to the fore. A meta-analysis of ~27,000 data points from studies published over the last four decades reveals that at country level, average impacts of climate change on crop yields up to the 2050s are generally small (but negative) for rice and wheat, and modest for maize, provided farmers adopt practices and technologies such as improved varieties, planting at optimal times, and improved water and fertilizer management. These technologies also have the potential to reduce differences across political, economic and climatic regions. Once these are adopted, climate change may not add significantly to the challenge of food production for the majority of countries except for some potential hotspots distributed around the world. Massive investment, policy, and institutional support will be needed, however, to facilitate adoption and scaling-out of such practices, and to address climatic variability.
 
Date 2019-02-28
2019-02-28T20:53:48Z
2019-02-28T20:53:48Z
 
Type Journal Article
 
Identifier Aggarwal P, Vyas S, Thornton P, Campbell BM. 2019. How much does climate change add to the challenge of feeding the planet this century? Environmental Research Letters 14(4):043001.
1748-9326
https://hdl.handle.net/10568/99821
https://doi.org/10.1088/1748-9326/aafa3e
 
Language en
 
Rights CC-BY-3.0
Open Access
 
Publisher IOP Publishing
 
Source Environmental Research Letters