It's 2 a. m. , and a teenage girl, worrying about an issue with a friend, lies awake.
How many sharks should a coral reef have? It sounds like a simple question, but almost nowhere on Earth is there a reef that has not at some time been fished or otherwise affected by humans, so there is no yardstick against which to measure what has been lost or what recovery would look like.
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A research team led by the U. S. Department of Energy's (DOE) Argonne National Laboratory has developed a new material that combines inorganic material with biological components to produce hydrogen peroxide more efficiently.
Fulfilling friendships and close social relationships are strongly linked to excellent physical and mental health, finds a substantial global study published in the Journal of Mental Health.
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