Killer viruses. Artificial intelligence. Extreme weather. Microplastics. Mental health. These are just a few of the pressing issues on which governments need science to inform their policies. But the systems that connect scientists with politicians are not working well, according to a Nature survey of around 400 science-policy specialists around the world. Eighty per cent said their country’s science-advice system was either poor or patchy, and 70% said that governments are not routinely using such advice.

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