Heat stress in U.S. may double by century's end

Periods of extremely high heat are projected to double across the lower 48 states by 2100 if the world continues to emit high levels of greenhouse gases, according to a new study in Earth's Future, an American Geophysical ...

3D-printed material to replace ivory for restoration of artifacts

For centuries, ivory was often used to make art objects. But to protect elephant populations, the ivory trade was banned internationally in 1989. To restore ivory parts of old art objects, one must therefore resort to substitute ...

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