Next on NOVA: MYSTERY OF THE MEGAVOLCANO

http://www.pbs.org/nova/megavolcano

Tuesday, September 26 at 8PM ET/PT on PBS

Check your local listings as dates and times may vary.

A remote lake in Southeast Asia conceals evidence of our planet's
greatest volcanic cataclysm of the last 100,000 years. Miles beneath
its placid surface lies a magma chamber that exploded so violently
during the last ice age that gases and ash may have encircled the
globe and blotted out the sun for years on end. The eruption of
Toba, a supervolcano now submerged beneath a lake in central
Sumatra, may have helped kick the climate into an unprecedented
freeze 74,000 years ago and perhaps even pushed ancestral human
populations to the brink of extinction. In a classic science
detective story, NOVA pieces together clues of this great
catastrophe and probes questions raised about human evolution and
Earth's fragile ecosystems.

Here's what you'll find online:

The Next Big One
http://www.pbs.org/wgbh/nova/megavolcano/bigone.html
What could we expect if a supereruption were to occur today?

Why Toba Matters
http://www.pbs.org/wgbh/nova/megavolcano/shindell.html
NASA's Drew Shindell reflects in this interview on the lessons
we can learn.

A Supersized Volcano
http://www.pbs.org/wgbh/nova/megavolcano/supersized.html
As this interactive shows, Toba's upheaval dwarfs all eruptions
of recorded history.

Blasts From the Past
http://www.pbs.org/wgbh/nova/megavolcano/blasts.html
Explore a map of supereruptions around the world.

Also, a video preview, Links & Books, the Teacher's
Guide, and more.

http://www.pbs.org/nova/megavolcano