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  1. Chemistry

    Thirdhand smoke wafting off moviegoers hurts air quality in theaters

    Nonsmoking theaters can still get exposed to cigarette-related pollutants carried in on audience members’ bodies and clothing.

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  2. Anthropology

    New fossils and artifacts show Homo erectus crafted a diverse toolkit

    Ancient hominid made stone tools demanding a range of skills and planning, a study finds.

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  3. Climate

    Australia’s wildfires have now been linked to climate change

    Australia’s devastating 2019–2020 wildfires were at least 30 percent more likely due to human-caused climate change.

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  4. Health & Medicine

    As the coronavirus outbreak evolves, we answer some key questions

    As the new coronavirus spreads, we are updating this FAQ with the latest on the race to understand the virus and stop the growing global health crisis.