National Academy of Sciences

MIAMI: The use of air conditioning may rise dramatically by the end of the century, requiring far more electricity and sending pollutants into the atmosphere at unprecedented rates, researchers warned Monday.

MIAMI: Plenty of research has shown that learning a second language can boost brainpower, but a new study out Monday suggests that the effects extend to those who begin in middle childhood.

MIAMI: A computer program that analyzes your Facebook "likes" may be a better judge of your personality than your closest friends and family, according to research out Monday.

MIAMI: Telling people how pollution can harm kids' health inspires them to use less electricity than telling them how much money they could save by cutting back on power use, US researchers said Monday.

MIAMI: Humans tamed horses some 5,500 years ago, and an international study of ancient and modern horse genes Monday sheds light on the traits people saw as valuable, including speed, vigor and learning ability.