Over 70 percent of the planet is covered with water. Yet many communities around the globe face a very limited supply. Learn why this natural resource is so elusive to many.
SCOUTING FROM SPACE
One might assume every drop of rainfall or irrigated water that lands in the soil, ultimately ends up in the root zone. But climate and weather profoundly influence if needed moisture actually reaches the plants. Throughout the season, various satellites deliver data to help create water-use maps. Assisted by complex computer models, these satellites can observe soil moisture levels on any field, anywhere in the world.