Pillar of Sand: Can the Irrigation Miracle Last? (Environmental Alert Series) Oceanography As nature's kidneys

As nature's kidneys

and the chief representative of I

He found clues to the healing process in the long-discarded theory that electricity is vital to life

author of Field Guide to Oregon Rivers

Integrating scientific research on dolphin intelligence

Pillar of Sand: Can the Irrigation Miracle Last? (Environmental Alert Series) Oceanography As nature's kidneysThe overriding lesson from history is that most irrigation based civilizations fail. As we enter the third millennium the question arises: Will ours be any different? For 6,000 years, irrigation has ranked among the most powerful tools of human advancement. The story of settled agriculture, the growth of cities, and the rise of early empires is, to no small degree, a story of controlling water to make the land more prosperous and habitable. Pillar of