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

  1. Climate

    Analyze This: Climate change could make food less healthy

    Levels of important nutrients are lower in crops exposed to high levels of carbon dioxide, a greenhouse gas. How high? Try levels expected to be typical 30 years from now.

  2. Climate

    Explainer: What is thundersnow?

    Wacky weather produced lots of thundersnow during New England’s recent winter storms. Some scientists now suspect Mother Nature got some human help.

  3. Physics

    Disabilities don’t stop these experts in science and tech

    People with disabilities are as varied as the careers some of them pursue in science, technology, engineering and math.

  4. Animals

    Nighttime lights can dim a firefly’s flash

    Fireflies blink to attract mates. But when it’s too bright at night, the insects may stay away.

  5. Environment

    Plastic trash rides ocean currents to the Arctic

    Ocean currents can carry plastic trash far from the cities that shed it. Some plastic debris has made it all of the way to the Arctic Ocean, new data show.

  6. Environment

    Did your burger come with a side of non-degrading pollutants?

    Perfluorinated compounds pollute the environment and might harm human health. A new study shows that one place they often show up is the paper and cardboard used to package fast foods.

  7. Environment

    Keeping space missions from infecting Earth and other worlds

    Scientists are always looking for ways to stop Earthly microbes from polluting other planets. The same goes for bringing bits of other planets back to Earth.

  8. Oceans

    Deep-sea dump: Trash is collecting on the Arctic seafloor

    Trash is building up on the bottom of the Arctic Ocean, including plastic bags, glass shards and fishing nets.

  9. Environment

    Cleaning up water that bees like to drink

    Plant roots suck up pesticides used on soils, then release them into water that can seep from their leaves. This is a sweetened water that bees love to sip. A teen figured out how to remove most of the pesticide with bits of charcoal.

  10. Space

    Student programs computer to predict path of space trash

    People are already using space as a garbage dump, which could prove dangerous to future space travelers. A teen set out to track space junk using only her home computer.