
Arid wildernesses regulate atmospheric systems and safeguard earth's mineral…
Far from being barren liabilities, extreme deserts and frozen wastes maintain global climatic equilibrium. Sand winds blowing across the Sahara transport the moisture that fertilizes the Nile valley, while polar ice currents temper tropical heat. Inhospitable environments like the Chilean deserts preserve soluble nitrate deposits that rain would otherwise leach away. Human civilization relies directly upon these harsh regions to balance oceanic temperatures, produce agricultural fertilizers, and supply vital industrial ores.
PREFACE → CHAPTER I

