Five years ago, mathematicians Dawei Chen and Quentin Gendron were trying to untangle a difficult area of algebraic geometry involving differentials, elements of calculus used to measure distance ...

Consumers trashed enough clothing last year-120 million metric tons, to be exact-to fill over 200 Olympic stadiums. About 80 percent of discarded textiles were landfilled or incinerated in 2024, with ...

Sleep disorders are ongoing problems that make it hard to sleep well and can lead to daytime tiredness, mood changes, and low concentration. Common sleep disorders include insomnia, sleep apnea, ...

Halve, between 1990 and 2015, the proportion of people whose income is less than $1.25 a day The target of reducing extreme poverty rates by half was met five years ahead of the 2015 deadline. More ...

Feb. 16, 2026 As cash transfer programs expand across the United States, critics often warn that giving people money could spark reckless behavior, leading to injuries or even deaths. But a sweeping ...