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  • Agriculture II Featured Photo Gallery Agriculture II Agriculture II

    Humans began to cultivate food crops about 10,000 years ago. Prior to that time, hunter-gatherers secured their food as they traveled in the nearby environment. When they... More »

  • Africa (collection) Featured Article Africa (collection) Africa (collection)

    Welcome to the Africa Collection! This new collection is centered on the environmental, economic and social challenges faced by the people of Africa. The goal of this collection... More »

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Agriculture II Last Updated on 2010-12-28 05:29:10 Humans began to cultivate food crops about 10,000 years ago. Prior to that time, hunter-gatherers secured their food as they traveled in the nearby environment. When they observed some of the grains left behind at their campsites sprouting and growing to harvest, they began to cultivate these grains. From these humble beginnings agriculture began. More »
Agriculture I Last Updated on 2010-12-28 04:17:57 Humans began to cultivate food crops about 10,000 years ago. Prior to that time, hunter-gatherers secured their food as they traveled in the nearby environment. When they observed some of the grains left behind at their campsites sprouting and growing to harvest, they began to cultivate these grains. From these humble beginnings agriculture began. More »
Africa (collection) Last Updated on 2009-08-06 02:42:39 Welcome to the Africa Collection! This new collection is centered on the environmental, economic and social challenges faced by the people of Africa. The goal of this collection is to draw attention to the magnitude and complexity of the challenges faced by the African continent in general and each of the countries in particular. The impact of these challenges goes beyond Africa which has one the world’s widest environmental, economic, and social disparities between the countries. The contributors to the African Collection are leading scientists and organizations both from within and outside Africa. This collection is a work in progress and you are encouraged to visit this site on a regular basis to learn more about what is being done in each of the African countries. To help you learn about the challenges faced by each of the countries we have designed an interactive map... More »