Jo Handelsman, Obama’s former science advisor, explains why more farms are experiencing erosion, and how it reduces crop yields. The following is an excerpt from A World Without Soil: The Past, ...

The village of Newtok in western Alaska, in August 2016. (Eric Keto/Alaska’s Energy Desk) Erosion is threatening coastal communities around the state, but until now it hasn’t been clear to what extent ...

Erosion is the wearing away of the land by water, ice or wind. Soil erosion is a natural process. It becomes a problem when human activity causes it to occur much faster than under natural conditions.

SIOUX CITY (KTIV) - Gather your supplies! This episode is about erosion and weathering. We will use sand and rocks to simulate what happens after a river flood. Water is powerful, it can grind down ...