Photograph of a student reading a soil moisture gauge in a crop field

May, 2015

Breaking new ground

About 97 percent of Earth’s water swirls on the surface in oceans and rivers, and another 2 percent is frozen in glaciers and ice sheets. Only a small percentage of Earth’s water moistens the soil—1 percent at the most. This small amount underground, however, plays a surprisingly large role in processes aboveground. Soil moisture helps… Read more »

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