Researchers hope to combat spread of invasive species of grass

Buffelgrass, an invasive species in the Sonoran Desert, causes wildfires to burn hotter and longer, damages the soil and its nutrients and out-competes native desert species. The grass, brought to the United States from Africa and southern Europe, was meant to revitalize the over-grazed cattle ranges of the Midwest, but once rooted, it spread to the dry Southwest, where it thrives and threatens native ecosystems.  Read more