Why We Didn’t Know That Female Birds Sing

Renewable Energy

U.S. Looks to Extract Lithium for Batteries from Geothermal Waste

The global demand for the element could grow tenfold by 2030

John Fialka and E&E News

Epidemiology

Heavily Mutated Omicron Variant Puts Scientists on Alert

Researchers are racing to determine whether a fast-spreading coronavirus variant poses a threat to COVID vaccines’ effectiveness

Ewen Callaway and Nature magazine

Medicine

A Graphical Guide to Ischemic Heart Disease

Globally, nine million people die each year from ischemic heart disease. Despite falling rates of heart disease, tackling it is still a stubborn challenge

Benjamin Plackett

Climate Change

Seeking Certainty on Climate Change: How Much Is Enough?

Two physicists object to a Scientific American essay calling for an end to one climate report. A science historian counters that the report has done its job

Sabine Hossenfelder, Tim Palmer and Naomi Oreskes | Opinion

Animals

The Surprising Architecture in Bees’ Honeycombs

The insects’ hives are more complicated than researchers thought

Saugat Bolakhe