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PNAS commits to immediately and freely sharing research data and findings relevant to the novel coronavirus (COVID-19) outbreak.
See the free collection of PNAS coronavirus papers and learn more about our response to COVID-19.
See the free collection of PNAS coronavirus papers and learn more about our response to COVID-19.
Front Matter
For decades, vitamin A deficiency has killed millions of children in less-developed countries. More governments should enlist Golden Rice to help.
Image credit: International Rice Research Institute.
Eyeing the effects of the Anthropocene, researchers offer a novel framework to identify and combine models from across the physical and social sciences.
Image credit: Shutterstock/Victor Lauer.
Early results suggest the right diet could not only help malnourished microbiomes recover, but could also help treat diabetes and other metabolic conditions.
Image credit: Shutterstock/Dana Ward.
In the News
Infrastructure built to protect cities from flooding can increase economic damages elsewhere.
Image credit: Michelle A. Hummel.
Phosphine in the Venusian atmosphere can be explained without biogenic sources and is consistent with ongoing volcanism on Venus.
Image credit: Wikimedia Commons/NASA.
A study finds underreporting of COVID-19 cases in the United States and that the United States is likely far from achieving herd immunity through infection alone.
Image credit: Pixabay/geralt.
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Science Sessions Podcasts
A collection of research articles explores how tropical ecosystems have borne the brunt of the human impact on the environment.
Image credit: Pixabay/Pexels.
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Image credit: Joshua Yospyn (photographer).










