Did you know? A bicycle is a marvel of engineering efficiency, one where an investment in 22 pounds of metal and rubber boosts the efficiency of an individual mobility by a factor of three. On my bike I estimate that I get easily 7 miles per potato. For more information view the text and data in Chapter 6 of Plan B 4.0: Mobilizing to Save Civilization.
Books
Released 2004
Outgrowing the Earth: The Food Security Challenge in an Age of Falling Water Tables and Rising Temperatures
Lester R. Brown
Table of Contents
(Chapters available in PDF and html, data in excel.)
Complete Data Sets
PRAISE FOR OUTGROWING THE EARTH
"...a groundbreaking text that makes a crucial contribution to human knowledge and to defining new parameters for action." --Herbert Girardet, World Future Council Initiative