News

  1. Health & Medicine

    A $4 tongue swab test detects tuberculosis within 30 minutes

    The new test may catch active tuberculosis in those with low access to health care or who have trouble making the phlegm needed for traditional tests.

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  2. Climate

    Huge volcanic eruption offers clues to fighting climate change

    The South Pacific blast may have consumed its own methane — but using this idea against the greenhouse gas is controversial.

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  3. Climate

    Grapefruit-sized hail may become more common in a warmer world

    A global model suggests that climate change could make hailstones larger and more damaging in many regions, especially at mid-to-high latitudes.