Did you know? The heat in the upper six miles of the earth’s crust contains 50,000 times much as energy as found in all the world’s oil and gas reserves combined. Despite this abundance, only 10,500 megawatts of geothermal generating capacity have been harnessed worldwide. For more information view the text and data in Chapter 5 of Plan B 4.0: Mobilizing to Save Civilization.
Outgrowing the Earth: The Food Security Challenge in an Age of Falling Water Tables and Rising Temperatures
Lester R. Brown
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
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