NEXT: Modern Volcanoes
Climatic and geological forces have shaped our planet in many ways, generally over scales of thousands or millions of years, forming mountains, building land masses, creating oceans and lakes. Once in a while, extraterrestrial wanderers — comets and asteroids — collided with Earth, disrupting the climate and causing extinctions. But what about modern history? Once Homo sapiens got established and civilizations flourished, how did natural forces shape human history? Would things have turned out the same despite various volcanic eruptions, floods and climate phenomena? It doesn?t appear so. Civilizations have lived and died along with climate changes. One gigantic volcanic eruption 1500 years ago seems to have played a huge role in shaping cultures on every continent. This gallery explores how El Niño, volcanoes, climate change and the stray comet or asteroid may have altered human history — and uncovers some interesting connections along the way.
Enter your email address so NGC can remind you when next this show airs.
Terms & Conditions Please note that show times occasionally change. Always consult NGC's online TV schedule for the latest information. If you sign up to receive a mobile reminder, you are authorizing NGC program reminders to be sent to your mobile phone. You will only receive reminders for shows that you request. This is a free NGC service, but standard text messaging rates apply. NGC mobile program reminders are offered by the following carriers: Alltel, AT&T Wireless, Cingular Wireless, Nextel, Sprint PCS, T-Mobile®, Verizon Wireless. You can end this service anytime by texting STOP to 64288. If you have trouble using this feature, please email site comments to website@natgeochannel.com. NGC privacy policy
Your reminder has been created.
An error occured while trying to create your reminder. Please try again.
See our planet from a different angle.View PhotosEARTH FACTS:
Explore the world's top destinations.VISIT SITE