Author(s): Alley, Richard B.
ISBN 10: 0691102961. See all ISBN's
ISBN 13: 9780691102962
Publisher: Princeton University Press
This is an eTextbook Learn More
Richard Alley, one of the world's leading climate researchers, tells the fascinating history of global climate changes as revealed by reading the annual rings of ice from cores drilled in Greenland. In the 1990s he and his colleagues made headlines with the discovery that the last ice age came to an abrupt end over a period of only three years. Here Alley offers the first popular account of the wildly fluctuating climate that characterized most of prehistory--long deep freezes alternating briefly with mild conditions--and explains that we humans have experienced an unusually temperate climate. But, he warns, our comfortable environment could come to an end in a matter of years.
The Two-Mile Time Machine begins with the story behind the extensive research in Greenland in the early 1990s, when scientists were beginning to discover ancient ice as an archive of critical information about the climate. Drilling down two miles into the ice, they found atmospheric chemicals and dust that enabled them to construct a record of such phenomena as wind patterns and precipitation over the past 110,000 years. The record suggests that "switches" as well as "dials" control the earth's climate, affecting, for example, hot ocean currents that today enable roses to grow in Europe farther north than polar bears grow in Canada. Throughout most of history, these currents switched on and off repeatedly (due partly to collapsing ice sheets), throwing much of the world from hot to icy and back again in as little as a few years.
Alley explains the discovery process in terms the general reader can understand, while laying out the issues that require further study: What are the mechanisms that turn these dials and flip these switches? Is the earth due for another drastic change, one that will reconfigure coastlines or send certain regions into severe drought? Will global warming combine with natural variations in Earth's orbit to flip the North Atlantic switch again? Predicting the long-term climate is one of the greatest challenges facing scientists in the twenty-first century, and Alley tells us what we need to know in order to understand and perhaps overcome climate changes in the future.
All ISBN's for this title:
ISBN 10: 0691102961, ISBN 13: 9780691102962, eISBN 10: 1400839203, eISBN 13: 9781400839209
Kno offers a 15-day, no questions asked, money back guarantee for all books you buy or rent through the Kno Bookstore. You are eligible for a full refund so long as you do not exceed the chapter limitation notification that appears in the textbook within a 15-day period.
Kno has the largest collection of digital textbooks on the market today. However, publishers do not have rights to make some of their textbooks available in a digital form. But that is changing over time and Kno is working with our publisher partners to make as many titles available digitally as possible.
An eTextbook is the digital version of a physical textbook.
All eTextbooks provided by Kno.com maintain the exact same page numbers and content as their physical versions.
Well, this is embarrassing.
Your transaction was not completed, please try again.
Sorry, there was a problem and your transaction was not processed completely. Please do not try to purchase this book again.
Instead contact Kno Customer Service at 1.877.935.6648 or by email at firstname.lastname@example.org and provide them with the following message number "1201" and they will resolve the issue.
Oops, looks like you already own this book.
Please check your course manager and review your purchased titles.
Hmmm, that's strange.
It appears that this title is not in our catalog after all.
The transaction did not complete because your credit card was declined. Possible reasons include:
Our credit card processing service does not specify the cause, so we recommend calling your credit card provider for details.
In a recent customer survey 54% of students using Kno got an A in their class. Kno has over 70 features that will improve your grades, save you time and help you get smarter!
Here's Just a Taste of What Kno Offers
organizes all your textbooks, PDFs and content in one spot.
instantly converts terms from your textbook into beautifully designed and smart flash cards.
any text on a page.
turns any diagram in a book into a multiple choice quiz.
maps instructional videos, images, and photos to formulas & concepts in your book.