By Milliam Murigi When dawn breaks over Kanyawa village in Gilgil, Nakuru County, Kenya, Agnes Kabogoro steps into her small ...

Researchers link a burst of volcanic activity in the mid-14th century directly to the eventual arrival of Yersinia pestis.

The speed at which glaciers move changes predictably each year, according to the first-ever global map of how glacier and ice sheet speeds vary with the seasons. Knowing this yearly rhythm could help ...