Over the last half billion years, there have been five major mass extinctions, when the diversity of life on Earth suddenly and dramatically contracted. Scientists are currently monitoring the sixth extinction, predicted to be the most devastating since the asteroid impact that wiped out the dinosaurs. This time around the cataclysm is us. In this book the author tells us why and how human beings have altered life on the planet in a way no species has before. She provides a moving account of the disappearances of various species occurring all around us and traces the evolution of extinction as concept, from its first articulation by Georges Cuvier in revolutionary Paris up to Lyell and Darwin, and through the present day. The sixth extinction is likely to be mankind's most lasting legacy, compelling us to rethink the fundamental question of what it means to be human. -- Publisher description.

"Wake up! Act! A call to address global climate change from two masters of science fiction. Isaac Asimov and Frederik Pohl are among the greatest science fiction writers who ever lived. Their talent for envisioning the future, and their clarity in writing about that future, made their novels enduring classics. In Our angry Earth, they applied those skills to a careful survey of the state of Planet Earth and the probable effect of our carbon-burning culture on it. Their cleared-eyed call to action is as fresh and timely as it was twenty-five years ago, when this book was published. The new introduction and afterword by Kim Stanley Robinson bring the book completely up to date. Robinson is one of the greatest modern SF writers, author of the bestselling Mars trilogy, the New York Times bestselling 2312, and the current climate change-focused bestseller New York 2140. He has written fiction and nonfiction about climate change for the past thirty years. In 2008, Time named Robinson a "Hero of the Environment."--Page 4 of cover.

Book by Glavin, Terry