A new index–developed by researchers at Columbia and USC–measures how countries are adapting to their aging populations.
Traces of flame retardants were found on the hands of all 3-year-olds in a Mailman study of 25 households in New York City.
The drone will collect air samples near industrial smokestacks and help scientists learn how pollutants disperse in the environment.
A new computer model can predict the onset, duration, and magnitude of influenza outbreaks in each neighborhood of New York City.
In Zimbabwe, Malawi, and Zambia, new infections are falling and the percentage of the population infected with HIV is stabilizing.
A global drop in adolescent fertility rates is partly due to rising national wealth and increased educational spending, Mailman researchers have found.