Front Matter

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• Opinion: The hunger metrics mirage: There’s been less progress on hunger reduction than it appears
  Tracking progress against hunger by country and across countries has been marred by the ambiguity. Image courtesy of Shutterstock/Riccardo Mayer.

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• News Feature: Liquid sunlight
  Recent findings suggest that fuels created by artificial photosynthesis are getting much closer to reality. Image courtesy of Dave Cutler.

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• Science and Culture: Terraforming a volcano, artfully
  When disaster struck an Indonesian village, a scientist and community artist erected a tower of seedlings in hopes of signaling rebirth and renewal. Image courtesy of Bayu Hindra Wijaya.

PNAS in the News

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• Racial bias, pain assessment, and treatment recommendations
  Many white laypeople, medical students, and medical residents who participated in a study endorsed false beliefs about biological differences between blacks and whites that were associated with racial bias in pain perception and treatment recommendations.
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• Recovery of declining fisheries
  A study finds that many of the world’s ailing fisheries can be restored in less than a decade through timely reforms.
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• Ancient arthropod brooding behavior
  A fossil of an ancient arthropod with 10 other small arthropods attached by individual threads that was discovered in England likely represents a brooding strategy in which juveniles latched onto adults, according to a study.
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