Agriculture Invented: When? How?
How did agriculture start, and when did it reach chilly Scandinavia? When were crops domesticated, and what were the first crops? How did domestication change crop genes and human society? More »
View ArticleBuried charcoal: Global warming star?
Buried charcoal stimulates microbes and plant growth, helping farmers on poor soil. Studies show that charcoal is stable for hundreds of years. More »
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