Administrator, IADS, USDA
“Brown is impassioned and convincing when talking about the world's ills and what he considers the four great goals to restoring civilization's equilibrium...” –April Streeter, TreeHugger.com
When assessing the adequacy of basic resources such as land or water over time, population is the universal denominator: as population expands, per capita availability shrinks.
The world population took until the start of the 19th century to reach 1 billion people. As population growth...