Desertification and Culture in World History
Over the past 7,000 years, a desert slowly spread through the center of the Old World. Our ancestors watched as patches of desolation appeared in the landscape like holes in worn-out cloth. The affected regions had been wastelands before in previous arid ages, but this time human civilizations were on hand to intensify the effect. Eventually, the “true deserts” came to resemble the moon or the sandstorm plains of Mars. Where the web of life is stripped to the bone, this is how it looks.