Between 1930 and 1950, advances in medicine also contributed to continuing, dramatic improvement in infants’ survival chances.

Most people treat animals as tools for improving human lives. But recent reports reveal (mis)treatment of animals is harming the planet as a whole.

The US national census has always been political, and has a large part to play in determining political representation and power.

Over the past 50 years, the portion of Americans who smoke dropped has dropped from 42 to 15 percent. The precipitous decline could mean the end of the fascination.

The solution isn't minimizing poverty or supplying more contraceptives.

We take a look at how sex was viewed by early economists, from Sir William Petty to Adam Smith to Jeremy Bentham.

Jacques Cousteau's 1992 speech at the United Nations warning the consequences of "man's divorce from nature" seems more prescient than ever.

Raising kids is expensive. What do parents get in return?