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Volume 590 Issue 7846

Editorials

News

News Features

News & Views

The role and rule of relatedness in altruism p.392

Inclusive fitness theory shows that social partners must be related for altruism to evolve, yet some models suggest that relatedness is not needed. An analysis concludes that assumptions in those models build in a role for relatedness, after all.

doi: 10.1038/d41586-021-00210-z

Multiple genomes give switchgrass an advantage p.394

The genome sequence of switchgrass (Panicum virgatum) sheds light on genetic mechanisms that have enabled the ancestors of this valuable biomass crop to adapt to cycles of climate warming and cooling.

doi: 10.1038/d41586-021-00212-x

Glowing nanocrystals enable 3D X-ray imaging p.396

Persistently luminescent nanocrystals have been used to make flexible X-ray detectors that produce better images of 3D objects than do the flat-panel detectors currently widely used in radiography.

doi: 10.1038/d41586-021-00350-2

Articles

A decline in global CFC-11 emissions during 2018−2019 p.428

Atmospheric concentration measurements at remote sites around the world reveal an accelerated decline in the global mean CFC-11 concentration during 2018 and 2019, reversing recent trends and building confidence in the timely recovery of the stratospheric ozone layer.

doi: 10.1038/s41586-021-03260-5