The Sixth Extinction- by Elizabeth Kolber, Review by Mary Ellen Hannibal, SF ChronicleLeave a Comment
San Francisco Chronicle Review by Mary Ellen Hannibal Updated 5:03 pm, Friday, February 7, 2014.
“There is grandeur in this view of life,” concludes Charles Darwin in his opus “On the Origin of Species.” “… From so simple a beginning, endless forms most beautiful and most wonderful have been, and are being evolved.” Darwin was right about many things, including the mechanism by which the plenitude of life we know as biodiversity came to thrive on this planet. Unfortunately for us, his picture of a continuously rich congregation of interacting species has hit a big roadblock. New Yorker staff writer Elizabeth Kolbert lays out the situation in “The Sixth Extinction: An Unnatural History.” The activities of Homo sapiens – that’s right, us – are reducing the volume and kinds of other life-forms on the planet at a rate and magnitude that earn our moment in time its own epochal designation.
By 2016, it is expected that the inherently conservative Geological Society of London will make it official: We’re living in an Anthropocene of our own devising. In her elegant and quickly paced book, Kolbert reviews the history of the very concept of extinction, noting that neither Aristotle nor Pliny nor Linnaeus ever guessed there had been life-forms on Earth that no longer exist….
….It is not possible to overstate the importance of Kolbert’s book. Her prose is lucid, accessible and even entertaining as she reveals the dark theater playing out on our globe. It is enough for one book to cover the enormous swaths of scientific territory she does here. Still, I would have liked more reference and explanation of how this accelerated take-down of creatures causes even more negative effects than the immediate one of species loss. For example, here in North America, the loss of top predators (grizzly bears and wolves) exacerbates our current ecological woes. On the East Coast, superabundant deer are decimating forests and in some communities have to be culled by hunters. These deer also bring us proliferating ticks and Lyme disease.
In the West, the lack of big teeth on the landscape actually has an impact on the water system, since the over-browsing deer and elk erode the banks of creeks and rivers, and pave the way for invasive plants to further degrade nature’s operations there. Finally, while there is probably no hope for many of the Earth’s creatures no matter what we do right now, we certainly can stem this extinction crisis. With any hope, Kolbert’s readers will not be able to sleep until we all do our part to protect habitat for our co-travelers through what Darwin rightly called Earth’s grandeur. As climate change forces species to adjust how and where they live, we can help them by protecting enough natural places for them to do so.
Mary Ellen Hannibal is the author of “The Spine of the Continent: The Race to Save America’s Last, Best Wilderness,” and winner of Stanford’s Knight-Risser Prize in Western Environmental Journalism. E-mail: firstname.lastname@example.org