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Environmental Impacts of Tropical Soybean and Palm Oil Crops  

Kimberly M. Carlson and Rachael D. Garrett

Oil crops play a critical role in global food and energy systems. Since these crops have high oil content, they provide cooking oils for human consumption, biofuels for energy, feed for ... More

Hunter-Gatherer Economies in the Old World and New World  

Christopher Morgan, Shannon Tushingham, Raven Garvey, Loukas Barton, and Robert Bettinger

At the global scale, conceptions of hunter-gatherer economies have changed considerably over time and these changes were strongly affected by larger trends in Western history, philosophy, ... More

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