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  1. Animals

    Australian fires have incinerated the habitats of up to 100 threatened species

    Hundreds of fires that are blazing across the continent’s southeast have created an unprecedented ecological disaster, scientists say.

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  2. Readers react to rechargeable batteries and more

    Readers had questions about lithium-ion batteries.

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  3. Scientists embrace a cathedral’s rebirth

    Editor in Chief Nancy Shute discusses the science behind restoring Notre Dame's unique sound.

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  4. Physics

    How to restore the legendary acoustics of Notre Dame

    Using heritage acoustics, researchers hope to help restore the sound of Paris's Notre Dame cathedral.

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  5. Earth

    Wildfires could flip parts of the Amazon from a carbon sponge to a source by 2050

    Climate change and deforestation could double the area burned by fire in the southern Amazon by 2050, flipping the forest from carbon sponge to source.