Good News Satellites can spy a menace in West Africa: invasive flowers Spacecraft help researchers monitor environmental problems on Earth, like the overgrowth of nonnative species and deforestation.
Newsletter From a nuisance to a benefit, ‘world’s worst weed’ finds new use as biofuel A startup in western Kenya has developed a process of making bioethanol from water hyacinths, addressing both the need for a clean fuel alternative to charcoal and fuelwood, and the spread of the invasive hyacinths.