Agriculture

earth-policy.org - December 4th, 2013 - Lester R. Brown

India is now the world's third-largest grain producer after China and the United States. The adoption of higher-yielding crop varieties and the spread of irrigation have led to this remarkable tripling of output since the early 1960s. Unfortunately, a growing share of the water that irrigates three-fifths of India's grain harvest is coming from wells that are starting to go dry.

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earth-policy.org

Full Planet, Empty Plates: The New Geopolitics of Food Scarcity

Chapter 7. Grain Yields Starting to Plateau

by Lester R. Brown

From the beginning of agriculture until the mid-twentieth century, growth in the world grain harvest came almost entirely from expanding the cultivated area. Rises in land productivity were too slow to be visible within a single generation. It is only within the last 60 years or so that rising yields have replaced area expansion as the principal source of growth in world grain production.

Chapter 7. Grain Yields Starting to Plateau
http://www.earth-policy.org/books/fpep/fpepch7

Full Planet, Empty Plates: The New Geopolitics of Food Scarcity
http://www.earth-policy.org/books/fpep

( ALSO SEE - http://resiliencesystem.org/chapter-4-food-or-fuel-full-planet-empty-plates-new-geopolitics-food-scarcity )

earth-policy.org

Full Planet, Empty Plates: The New Geopolitics of Food Scarcity

Chapter 4. Food or Fuel?

by Lester R. Brown

At the time of the Arab oil export embargo in the 1970s, the importing countries were beginning to ask themselves if there were alternatives to oil. In a number of countries, particularly the United States, several in Europe, and Brazil, the idea of growing crops to produce fuel for cars was appealing. The modern biofuels industry was launched. 1

This was the beginning of what would become one of the great tragedies of history.

Chapter 4. Food or Fuel?
http://www.earth-policy.org/books/fpep/fpepch4

Full Planet, Empty Plates: The New Geopolitics of Food Scarcity
http://www.earth-policy.org/books/fpep

( ALSO SEE - http://resiliencesystem.org/chapter-5-eroding-soils-darkening-our-future-full-planet-empty-plates-new-geopolitics-food-scarcity )

A woman sells cassava at a roadside market north of Uganda's capital, Kampala. Also known as manioc of yuca, cassave withstands heat, drought and flooding. Ugandans tend to grow it in small plots for family consumption during lean times. (Photo: Jon Miller/Homelands Productions)

submitted by Albert Gomez

theworld.org - by Jon Miller - June 13, 2013

Cassava is a vital staple in Africa and one of the most climate-resilient crops anywhere. It’s also highly susceptible to viral diseases. In Uganda, scientists are testing a virus-resistant transgenic variety, which they hope to introduce for free. But it’s run into a buzzsaw of hostility to genetically modified foods. Can this—or any—GMO succeed in the face of such determined opposition? Should it?

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