PubTalk 1/2010 — Coral Reefs, the 6th Extinction, and You

By Michael Field, Senior Marine Geologist

• Five major episodes of biological extinction have occurred on Earth during geologic time -- what caused these extinctions and why are they relevant today?
• Scientists are concerned that life on Earth may be facing a 6th major extinction, severely limiting the biodiversity of animals and plants -- why is this important to us?
• Coral reefs, one of the most diverse and important ecosystems on the planet, are thriving in many places but are threatened in many others -- a harbinger of things to come?
• If there is indeed a growing wave of extinction, what can you as an Êindividual do to help shape the future?