Food Security and Production in Dryland Regions

Stewart, B.A.

doi:10.1201/9781420028614.ch14

Cited by 2 publications

(3 citation statements)

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“…There is no credible scenario showing that global warming will bring more food to the world's tables (Rosenzweig and Parry 1994;Stewart 2005). Rather, changes in temperature, precipitation, and evaporation patterns will likely amplify the shortages caused by humanity's reckless exploitation of soil, water and oil.…”

Section: Climate Changementioning

confidence: 96%

“…By 2050, all continents but Antarctica are expected to suffer drier summers, the season that crops grow their most and are accordingly thirstiest (Jackson et al 2001a, b;Schiermeier 2008). Droughts are expected to increase in frequency and in intensity, impacting continental interiors, the tropical (densely populated) latitudes and the already dry regions of the Earth (Dai and Trenberth 1998;Jackson et al 2001, b;Shiva 2002;FAO 2003;Stewart 2005: IPCC 2007Brown and Funk 2008;Lobell et al 2008). This factor, alone, may place an extra one to two billion people into the category of water stressed (Jackson et al 2001a, b;IPCC 2007;Kerr 2007b).…”

Section: Climate Changementioning

confidence: 97%

“…Some high latitude countries such as Canada, Russia, and Northern Europe may initially benefit from longer growing seasons; however, crops will suffer in the low latitude, highly populated countries of Africa, Southern China, South and Southeast Asia, and Latin America (Rosenzweig and Parry 1994;FAO 2003;Stewart 2005;IPCC 2007). Studies indicate that increased atmospheric carbon dioxide improves crop yields and temperature depresses them (Moffat 1992;Evans 1998;Smil 2000a;FAO 2003;Easterling 2005;Lal 2005).…”

Section: Climate Changementioning

confidence: 99%

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Population crash: prospects for famine in the twenty-first century

Schade

Pimentel

2009

Environ Dev Sustain

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For centuries famine arose as a seemingly endless series of acute, regional and unanticipated events; it has transformed into a phenomenon, global in scale and continuous in nature. Half the world's human population perpetually suffers some form of malnourishment, from either a scarcity of calories, protein or micronutrients or from a combination of these. Sheer population size has rendered the scale of suffering unprecedented. Perpetual famine has emerged during an era of abundant and relatively inexpensive soil, water and energy resources, improving crop yields, and a benign climate. However, the twentieth century trends of resource degradation, diminishing growth in crop yields and a warming atmosphere will likely continue, latently and perhaps synergistically impacting agricultural production, and therefore, threatening food security in the twenty-first century. Assuming some proportional relationship between food security and these resources, famine is here projected to greatly increase in the coming decades, severely impacting billions of people.

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Section: Climate Changementioning

confidence: 96%