Climate change and air pollution are both known to harm human health but typically are considered separately. In fact, they are additive: Heat waves can be dangerous, for example, but they also raise the risk of wildfires, which release small particles that lodge in the lungs.

Both can negatively impact mental health. And they may have an outsize effect on schizophrenia, researchers write in a commentary published July 25 in Schizophrenia Research .

Corresponding author Giulia Cattarinussi , M.D., Ph.D., a psychiatrist and postdoctoral research associate at the Institute of Psychiatry, Psychology & Neuroscience at King's College London in the U.K., and colleagues point to multiple factors that combine to raise the risk of developing schizophrenia and also exacerbate pre-existing sy

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