Feature

  1. Climate

    The first step in using trees to slow climate change: Protect the trees we have

    In all the fuss over planting trillions of trees, we need to protect the forests that already exist.

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  2. Environment

    Why planting tons of trees isn’t enough to solve climate change

    Massive projects need much more planning and follow-through to succeed – and other tree protections need to happen too.

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  3. Health & Medicine

    How Hans Berger’s quest for telepathy spurred modern brain science

    In the 1920s, psychiatrist Hans Berger invented EEG and discovered brain waves — though not long-range signals.

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  4. Earth

    A WWII submarine-hunting device helped prove the theory of plate tectonics

    With a boost from World War II, the fluxgate magnetometer became a portable and invaluable tool.