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Bluefield Daily Telegraph in Bluefield, West Virginia

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Newspaper

Bluefield Daily Telegraph

Location

Bluefield, West Virginia, United States of America

Date

Jun 21, 2011

Page

5

Sixth Mass Extinction Driven by Human Activity

The Mini Page interview with Michael Brett-Surman explains mass extinctions, noting humans drive the current sixth extinction through climate change and habitat loss. It outlines how extinctions redress Earth's diversity, with past events like the Ordovician ending around 445 million years ago wiping out over half of life due to sea level drops and glaciers.

End of the Devonian and other mass extinctions summary

The Devonian ended about 370 million years ago with widespread animal and plant losses as oceans rose and fell and climate shifted. Plant growth cooled the atmosphere by drawing in CO2, while glaciers formed. Subsequent eras saw the Great Dying at 250 million years ago and other mass extinctions linked to volcanic activity, global warming, ocean changes, and an asteroid impact, ending with the demise of most dinosaurs at 65 million years ago and the survival of birds.

Earth Pangaea Atlantic Ocean

Endangered Look at Human Role in Mass Extinctions

A history of life loss over 20 000 years shows a dramatic drop in species diversity. Experts say current extinctions are 1000 times faster than normal and driven by human activity. Pollution climate change overhunting and habitat destruction are key factors. The text urges study science and action by today’s youth to safeguard Earth.

Earth

Also Mentioned on This Page

Michael Brett-Surman Smithsonian National Museum of Natural History Earth Times Michael Brett Surman National Museum of Natural History Karner Blue San Joaquin Kit Fox America Betty Debnam Lisa Tarry Lucy Lien Wendy Daley Giant Panda Antioch Dunes Primros Mini Mic’ Mimi Paul Pete Petra Patty Patton Pam Wey LU An RO R Discovery Pbs.org Jeff Hecht Tazewell New Drive Thru Bluefield Daily Telegraph District of Columbia Canada U.S Universal Uclick P.O Leawood Smartwarehousing.com
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