Nurith Aizenman

Lower-income countries did not get the COVID vaccines they needed. So the World Bank and other partners tapped a South African company to cook up the (undisclosed) recipe for the Moderna mRNA vaccine.

The study assigned subjects to one of two rooms: 68 degrees or a sweat-inducing 86 degrees. They played a computer game that can bring out the worst in human nature. What are the real-world lessons?

Periods of sweltering temperatures like the current global heat wave seem to drive up civil conflicts. But why? To find out, researchers put thousands of people in hot rooms - with surprising results.

The implications are potentially enormous, says history professor Kimberly Hamlin: "The myth that man is the hunter and woman is the gatherer ... naturalizes the inferiority of women."

Scientists have long held that early human men did the hunting and women the gathering. A new review of data on foraging societies in modern times suggests that most women hunted.

The wondrous findings of a global project to record the sound of ocean habitats threatened by climate change and pollution — then play it through loud speakers set up next to troubled reefs.

There's a looming debt crisis in many lower income countries. Low interest rates a few years back started the cycle. Then came a series of once in a generation shocks. Is there a solution?

A debt crisis looms over low- and-middle-income countries. One in five people live in a country teetering toward default. NPR unpacks the causes and consequences, including spiraling food prices.

The head of the World Health Organization made a historic announcement today: COVID-19 is no longer a global emergency. NPR unpacks what that means — and what comes next.

The World Health Organization has lifted the Public Health Emergency of International Concern (PHEIC) for COVID-19. The declaration had been in effect since Jan. 30, 2020.