A corn field devastated by drought. Land degradation is estimated to cost the United States $67 billion a year. Photo: Bob Nichols, USDA Attribution 2.0 Generic (CC BY 2.0)

Researchers in the U.S. launch five-year soil health survey

Four U.S. universities are launching a massive soil analysis project. The initiative aims to counter land degradation which is estimated to cost $67 bn a year in America

Re Soil Foundation