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The Return of the Child: The Effects of "El Nino"
This program charts the birth and development of the weather system "El Nino," so-called because it occurs at the time Christmas is celebrated. The most severe El Nino on record was first noticed in 1982. In Peru, the fishing water was 15 degrees abo...(more details) |
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Mapping the Weather
This program covers the weather in all its aspects: how it is measured, the efforts to forecast it, its economic and human effects. The immensely complex physics, chemistry, and mathematics scientists use to study the atmospheric system-from the sun,...(more details) |
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The Greenhouse Effect
 A life-sustaining envelope of gas surrounds the earth. This atmosphere contains oxygen, CO2, water vapor, and other gases-it is what generates climate, which affects all living beings. This program analyzes the sun's gradual brightening and the relat...(more details) |
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$99.95 |
| DVD + 3-Year Streaming |
$149.93 |
| 3-Year Streaming |
$99.95 |
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Waves and Beaches
This program examines the various shapes taken by a beach in order to dissipate wave energy. Two beaches are compared-a fairly steep one, a mixture of sand and shingle, and, half a mile away, a flat and sandy one. Field measurement and laboratory dem...(more details) |
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Farming the Sea
Those who fish commercially are trappers at heart, so they say. This program shows that despite that reputation, the fishing industry has made serious efforts to farm fish-to breed them in captivity and either harvest them under controlled conditions...(more details) |
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