Will the same factors that have already begun to limit growth in the world's more developed countries — declining birth rates, for example — slow global human population growth? Or will growth ...

We're in the midst of the Earth’s sixth mass extinction crisis. Harvard biologist E. O. Wilson estimated that 30,000 species per year (or three species per hour) are being driven to extinction.

New insights have emerged into how the human brain develops. Two genes that are unique to humans work together to influence ...

But is growth of the human population responsible for the environmental catastrophe our planet is facing? The data tell a different story. For example, although high-income and upper-middle-income ...