Forces of Change
Dust Stampede
Dust Stampede
A dust storm roils over the Sahara Desert, covering several hundred miles of Algeria and Libya.
Photo © CORBIS

Corals See Red

Red dust from the Sahara Desert blew westward to the Caribbean Sea where corals sucked it in as they filtered water for food. The dust makes the corals more susceptible to infection from bacteria or viruses that were riding on the dust. Damaged coral loses its color.

images of dust storms