Americans in the past created farmland out of forests, swamp and deserts. They built dams and canals when required. They produced the world's most widespread and inexpensive agriculture.
Today the population is growing by natural and immigration means. Yet many hundreds of thousands of acres of productive land is going out of use. At the same time we have chronic water shortages, particularly west of the Mississippi River.
This has not stopped organized, professional environmentalists. They stop irrigation wherever they can, to save threatened species of fish and other organisms they view on the same level with human needs.
We are thus taking too much productive farmland away from food supplies. As well as making food we do have more expensive.
Moreover, the trend continues despite economic hardship.
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