Feature
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ClimateThe 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.
By Susan Milius -
EnvironmentWhy 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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Health & MedicineHow 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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EarthA 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.