Water scarcity ahead for 80% of croplands, but farming methods can help

  • 09.05.2022
  • Earthsky.org

Researchers developed a new index to measure and predict water scarcity in agriculture’s two major sources. First is soil water that comes from rain, called green water. Second is irrigation from rivers, lakes and groundwater, called blue water. This is the first study to apply this comprehensive index worldwide and predict global blue and green water scarcity as a result of climate change.