ScienceExplain

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  • Why Are Animal Migrations Changing?

    Migration routes and timing evolved to match seasonal resources. As seasons shift and landscapes fragment, many species are arriving at the wrong time or finding the route blocked.

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  • What Does Nuclear Waste Disposal Involve?

    Disposing of nuclear waste is less a physics problem than a materials and institutions problem: containing material safely for timescales longer than any human organisation.

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  • Why Are Wildfires Getting Harder To Fight?

    Longer fire seasons, drier fuel and more people living near woodland combine into fires that overwhelm suppression. The problem is partly that we have been very good at putting fires out.

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  • How Is Sea Level Actually Measured?

    Sea level is measured from space to within centimetres, and from tide gauges over more than a century. Reconciling the two is where the real work happens.

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  • What Are Quantum Networks For?

    A quantum network does not send matter or enable faster-than-light communication. Its practical purpose is distributing keys whose secrecy is guaranteed by physics, and linking quantum processors.

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  • What Do Ice Cores Reveal About Climate?

    Trapped bubbles in Antarctic and Greenland ice preserve samples of ancient atmosphere. They are one of the few direct records of what the air was actually made of.

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  • Why Are Heatwaves Becoming More Dangerous?

    Heat kills through humidity as much as temperature. What matters is whether the body can still cool itself, and that limit is being reached more often.

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  • How Are Brain-Computer Interfaces Progressing?

    Interfaces that read brain activity and turn it into commands have moved from laboratory demonstrations to long-term implanted systems. The hard parts are longevity, bandwidth and what the technology should be used for.

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  • Why Is The Ocean Becoming More Acidic?

    Carbon dioxide dissolving in seawater changes its chemistry. The ocean is still alkaline, but it is moving in the acidic direction faster than many marine organisms can adapt to.

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  • How Are Deepfakes Detected?

    Synthetic media is improving quickly, and detection is an arms race with no durable winner. The most reliable defences are provenance and context, not spotting artefacts.

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