Pumping pressure /
Pumping pressure /
- 1 DVD (26 min.) : sound, color ; 4 3/4 in.
- Changing currents, 8. .
- Changing currents, 8. .
In the drier areas of the world irrigation accounts for 80% of water used. Underground supplies are being pumped dry. The program features the visionaries who have some answers in Southern Africa and in India.
Irrigation--Management.
Irrigation--Economic aspects.
Water-supply--Management.-- Africa, Southern
/ A01156
In the drier areas of the world irrigation accounts for 80% of water used. Underground supplies are being pumped dry. The program features the visionaries who have some answers in Southern Africa and in India.
Irrigation--Management.
Irrigation--Economic aspects.
Water-supply--Management.-- Africa, Southern
/ A01156