Dangerous Earth

Dr. Helen Czerski examines lightning, which strikes Earth each day with temperatures five times hotter than the surface of the sun and millions of volts of electricity. Then, she studies volcanoes and their dangerous forces.

Dr. Helen Czerski studies how something as delicate as a snowflake can transform into a deadly avalanche. Then, she digs into the serious hazard of icebergs and how increasing ocean temperatures play a role in their life cycle.

Dr. Helen Czerski examines how advances in technology further the understanding of tornadoes and their incredibly destructive power. Then, she learns how solar winds provide insight into the aurora.