QUESTION:. If world grain production per capita is falling [see Brown and Kane], can it be rising in less developed countries (LDCs) AND in developed countries? Explain your answer. Can We Produce Enough Food?. Malthus, Pessimists and Optimists What does the past mean?
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QUESTION: If world grain production per capita is falling [see Brown and Kane], can it be rising in less developed countries (LDCs) AND in developed countries? Explain your answer.
Can We Produce Enough Food? • Malthus, Pessimists and Optimists • What does the past mean? • What strategies does it suggest? • What Do the Data Show and Hide? • Production, Area, Irrigation, Fertilizer, Yields • The Green Revolution in Asia and (not) Africa • Genetically Modified Organisms (GMOs)
Runge, et al: Strategies for Fighting Malnutrition (Focus on economic development) • “Hunger today is less a problem of general food availability than of access.” • “Today’s supply of food … is more than enough for everyone, equal to about 2700 calories per person per day.” • “Long-term solutions to hunger require that families … have the economic wherewithal to meet their own food needs.” • “People lack access to food because of inadequate income, political disadvantage, or war.”
World Bank Views on Food Security Dimensions of Food Security (What’s Needed?) 1. Adequate global food supplies · research and extension · fair trading regimes
World Bank Views on Food Security Dimensions of Food Security (What’s needed?) 2. Poverty Reduction · national economic growth · agriculture as engine of growth · access to land and capital · markets and agribusiness
World Bank Views on Food Security Dimensions of Food Security (What’s Needed?) 3. Health and Nutrition Programs · nutrition education · alleviate micronutrient deficiencies · improve intrahousehold allocations · help pregnant/lactating women ·help infants and children
Brown and Kane –Are We Entering a New Era?6 New Constraints • Backlog of agricultural technology shrinking • Pressing the limits of fisheries and range • Pressing limits of water availability • Fertilizer benefits are slowing • Losing cropland • Social disintegration – caused by rapidpopulation growth and environmental degradation
Point Comparisons • “But during the next nine years [1984 – 1993] per capita [grain] production fell by more than one tenth.” Brown and Kane, p. 38
Aggregation • Aggregation can hide the effect of changes in weightings. So…production per person may be increasing in developed and developing countries, but world production per person may decrease. • How is that possible?
Aggregation May Hide Contrasting Regional/National Stories • World data may hide different stories in different regions with different implications for the Malthusian question. • Example: Decline in Chinese cereal production per person in late 1990s was probably due to diversification of diet way from cereal to more valued foods -- the opposite of the Malthusian specter. • And China data have big effect on world data.
1982 1983 1985 1988 1990 1995 1997 728 617 743 604 727 596 697 Developed Countries Grain Production (kg/cap)
1961 1970 1980 1990 1999 2000 188 224 235 259 264 252 Less Developed Countries Grain Production (kg/cap)
China Farmland • Brown: “The shifting of land to nonfarm uses is particularly pronounced in China, which is losing 1 million hectares of its cropland a year.” (P. 99) • FAO: steady increase in arable and permanent crops in China
Only Africa and South America may have potential to significantly expand cropland • But even for those areas, and rest of the world, most gains in food production must come from higher yields • Irrigation • Chemicals • Plant Improvement