Learn the effects of natural disasters and the difference between natural disasters and man-made disasters. Also explores ten different natural disasters.

From ABC News in Science, Julie Steenhuysen's article explores the results of ancient volcanic eruptions that caused a warming effect on the Earth and possibly caused the death of certain species.

Clearly labeled diagram of a volcanic eruption, with a focus on the hazardous effects of landslides, pyroclastic flows, lava flows, eruption clouds, acid rain, tephra, and lahars.