Earth’s Soil Is Getting Too Salty for Crops to Grow

Posted by Mike Confino, October 29, 2014

42-60978110.jpg__800x600_q85_crop

In the upcoming film Interstellar, Earth’s soil has become so degraded that only corn will grow, driving humans to travel through a wormhole in search of a planet with land fertile enough for other crops. In the real world things aren’t quite so dire, but degraded soil is a big problem—and one that could be getting worse. According to a new estimate, one factor, the buildup of salt in soil, causes some $27.3 billion annually in lost crop production.

“This trend is expected to continue unless concrete measures are planned and implemented to reverse such land degradation,” says lead author Manzoor Qadir, assistant director of water and human development at the United Nations University Institute for Water, Environment and Health. Qadir and his colleagues published their findings October 28 in Natural Resources Forum.

via Earth’s Soil Is Getting Too Salty for Crops to Grow | Science | Smithsonian.

  1. gvillefarmfresh Says:

    Earth’s Soil Is Getting Too Salty for Crops to Grow: In the upcoming film Interstellar, Earth’s soil has become… http://t.co/JxD7x1q4UE