land
Facts
Owning land is part of the American dream. But what happens when everyone tries to grab a “slice” of American soil? Environmentalists have their list of concerns. One is that our “arable land” (meaning land that can be used for growing crops) is wearing thin and that we are overtaxing our land's ability to produce. Others focus on the potential damage of urbanization, suburban sprawl and industrial waste. And for environmentalists who care about global warming and the protection of endangered species, there's also worry about depleting the forests. citizenJoe puts some of these concerns in perspective.
General
How much land there is in America ERS:
- 2.3 billion acres.
What it's used for ERS:
- Forest use: 28% - or 642 million acres;
- Grassland pasture and range: 26% - or 580 million acres;
- Cropland: 20% - or 455 million acres
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Other:
- Roads, rail and airports: 1% - or 25 million acres;
- State parks, wilderness and wildlife: 10% - or 239 million acres;
- Urban areas: 3% - or 66 million acres.
What we use our land for
How that's changed over the years
Note: “special use” includes rural transportation, parks, wildlife, military land and “farmsteads”
Productivity
Productivity of the land has grown, on average:
- 1.88% per year since 1948 ERS
"Output" of farms (produce for human use):
- Grew 45% from 1980 to 1999 Census
"Input" into farm productivity (all costs from labor, energy, etc):
- Decreased 13% from 1980 to 1999 Census
Ratio of "output" to "input" (how much we get for how much we put in)
- Grew 67% from 1980 to 1999 Census
Greenhouse gas emissions from agricultural activities
- 3.2% increase in methane emissions from 1990-2003 EPA
- 0.7% increase in nitrogen oxide emissions from 1990-2003 EPA
Urbanization
Percentage of Americans living:
- In urban areas: 75% (USDA) (note: USDA doesn't really define urban areas, but we think they mean cities plus localities with 2,500 that surround cities - aka the burbs). PRB puts the number at 79%. The UN says 81%.
- In cities of 1 million people or more: 43% UN
Urban growth - number of acres cities cover
note: USDA, includes localities of 2,500+ people outside cities
Soil Erosion
Percent of US farmland with greatest potential for wind erosion: EPA
- 15% of total, 63 million acres
- Decreased by about 33% from 1982-1997
Percent of US farmland with greatest potential for water erosion: EPA
- 22% of total, 89 million acres
- Decreased by about 33% from 1982-1997
Municipal solid waste – aka garbage
Per capita waste generation: EPA
- 4.5 pounds per person per day; 236.2 million tons total
What we toss
Recycling
- Total recycling rate: 30.6%; 72.3 million tons of materials
- Auto batteries: 93.0%
- Steel Cans: 60.0%
- Yard Trimmings: 56.3%
- Paper and Paperboard: 48.1%
- Aluminum Beer and Soft Drink Cans: 43.9%
- Tires: 35.6%
- Plastic Milk Bottles: 31.9%
- Plastic Soft Drink Containers: 25.2%
- Glass Containers: 22.0%
Recycling more - but tossing more too
Where the facts are from
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Census - US Census Bureau - government site
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ERS - Economic Research Service of the U.S. Department of Agriculture - government site
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EPA - Environmental Protection Agency – government site
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PRB - Population Reference Bureau - media
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UN - United Nations
Did we miss something, let some slant slip in, lose a link - or do you just have something to say? Drop a line below! In the spirit of open dialogue, cJ asks you keep it civil, keep it real and keep it focused on the message, not the messenger. See our policy page for more on what that all means.


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