A new method can remotely map crop types in low- or middle-income countries where agricultural data are sparse. The maps will help scientists and policymakers track global food supplies and estimate ...

AMES, Iowa – A recent ecosystem modeling study conducted by Iowa State University scientists shows how crop production in the United States has led to an increase in the emissions of nitrous oxide, a ...

A computer modeling study shows how the emissions of the greenhouse gas nitrous oxide have increased from soils over the last century. The newly published research found the expansion of land devoted ...