A description of the building done at Chaco Canyon. Find out how the dwellings were built, where the materials came from, the agriculture that supported the population, and the road systems that connected the populace of Chaco Canyon to...

The Icelandic volcano spewed tons of ash into the atmosphere creating havoc for global trade. This article briefly discusses its impact on the environment and the economic consequences of the eruption. Education resources are included....

Describes the origins of, European demand for, and the devlopment of modern-day global trade of palm oil.