What's Current in

Letters and Science

Image
The Earth gradually becoming whiter.
Photo Credit
Matt Perko
On its own, Earth would shift toward another ice age in about 10,000 years, scientists say. But humanity’s greenhouse gas emissions may have radically shifted the climates trajectory.

Scientists match Earth’s ice age cycles with orbital shifts

Read Article

Spiritual World
Stefano Tessaro and Andrea Young

New Research Horizons

Counting Sharks

Gone Fishing

Chemical Sex Appeal

The Price of Secrets

Snow Job

Beach Bashing

An Experiment in History

Your Brain on Exercise
james brooks with black shirt

A Workable Future

International Debate