Register for an account


Enter your name and email address below.

Your email address is used to log in and will not be shared or sold. Read our privacy policy.


Website access code

Enter your access code into the form field below.

If you are a Zinio, Nook, Kindle, Apple, or Google Play subscriber, you can enter your website access code to gain subscriber access. Your website access code is located in the upper right corner of the Table of Contents page of your digital edition.

Planet Earth

By the Numbers: An End to the

By Lauren GravitzNovember 1, 2001 6:00 AM


Sign up for our email newsletter for the latest science news

Three decades after ecologist Paul Ehrlich warned of an impending "population bomb," the end of growth may be in sight. Warren Sanderson of the State University of New York at Stony Brook and his colleagues reached this conclusion from an analysis of trends in fertility, life-expectancy, and mortality rates. Not only has the rate of population increase slowed, the overwhelming likelihood--an 85 percent probability--is that the global population will peak before 2100. Clarence Lehman of the University of Minnesota came up with similar results: Looking only at population dynamics, such as how population density affects per capita growth, he reports that the rate peaked in the 1970s and has been falling since.


    3 Free Articles Left

    Want it all? Get unlimited access when you subscribe.


    Already a subscriber? Register or Log In

    Want unlimited access?

    Subscribe today and save 70%


    Already a subscriber? Register or Log In