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The New DU. Reply #33: Flood and erosion control are benefits to humans. But, that aside, humans lived just
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bertman
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Thu Oct-15-09 08:18 PM
Response to Reply #25 |
| 33. Flood and erosion control are benefits to humans. But, that aside, humans lived just |
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fine without flood control for thousands of years because they were aware of the natural flow of rivers. The natural flooding and depositing of silts have been giving us fertile lands and wetlands teeming with plants and animals that have fed us for millenia or hundreds of millenia.
We're "conserving" the salmon now because we have almost harvested them to extinction. Don't get me started on the cod and what we have done to the pelagic species of fish like marlin, bluefin tuna, swordfish, etc.
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