Apply scientific principles to design a method for monitoring and minimizing a human impact on the environment.

  1. Tech

    Drawing energy out of wastewater

    Microbes in a fuel cell can generate electricity from plant and animal waste in water.

  2. Environment

    A vulture’s hidden enemy

    Vultures may be getting a deadly dose of medicine from the carcasses they feed upon.

  3. Environment

    Cliff snails and rock climbers

    Rock climbers can accidentally wipe out communities of cliff snails.

  4. Humans

    Digging for ancient DNA

    Soil has yielded identifiable DNA of animals and plants that lived up to 400,000 years ago.