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U.S. Population Growth (Fact Sheet) Food, Land, Energy, Water, and the U.S. Economy
Population
– At the present growth rate of 1.1% per year, the United States’
population will double to about 560 million in about the next 60 years,
if current immigration and related trends continue. Each year over
3 million people are added to the U.S. population.
– Over 70% of the United States’ annual population growth (and over 90%
of California, Florida, and New York) results from immigration.
– Every person leaves an "ecological footprint" on the Earth,
that amount of land which, assuming it is endowed with an average amount
of resources, is necessary to sustain one human being indefinitely. The
average American’s ecological footprint is about 12 acres, an area far
greater than that taken up by one’s residence and place of school or work
and other places where he or she is. Those 12 additional acres supply the
average American with food, fiber, and other resources, as well as
capacity for waster assimilation and disposal.
Land and Food Production
– One acre of natural habitat or farmland is converted to built-up
space or highway for each person added to the U.S. population.
– More than 99.3% of U.S. food comes from land, while less than .5%
comes from aquatic systems.
– Of the nearly 470 million acres of arable land that are now in
cultivation in the U.S., more than 1 million acres are lost from
cultivation each year due to urbanization, multiplying transportation
networks, and industrial expansion. In addition, about 2 million acres of
prime cropland are lost annually by erosion, salinization, and water
logging.
– Iowa has lost ½ of its fertile topsoil after farming there for about
100 years. Their topsoil is being lost about 30 times faster than
sustainability.
– If present population growth and other trends continue, over the next
60 years, both degradation and urbanization will diminish our arable land
base of 470 million acres by 120 million acres.
– Only 0.6% acres of arable land per person will be available in 2050,
whereas more than 1.2 acres per person are needed to provide a diverse
diet (currently 1.6 acres of arable land are available).
– A doubling of the American population will accelerate the need for
food. For every 1% increase in food demand, the price at the farm gate
increases 4.5%.
Food Exports and Oil Imports*
– Currently, the U.S. earns $40 billion per year as the largest food
exporter in the world. About 60% of the oil used in the U.S. is imported
at a cost of $75 billion per year. About 400 gallons of oil equivalents
are expended to feed each American, about 17% of all energy used, each
year.
– If present trends in population growth, domestic food consumption,
and topsoil loss continue, the U.S. food exports (and the income from
them) will cease by 2030.
Energy*
– Fossil energy use in the U.S. has increased from 20 to as much as
1,000-fold in just four decades.
– Currently, 92% of U.S. energy needs are provided by finite fossil
fuels, with 6% of the total energy used for agricultural production.
– Renewable energy sources, like hydropower and biomass, provide 8% of
U.S. energy and are increasing very slowly.
– Approaching 2050, most of the oil and natural gas in the United
States will be exhausted, and world supplies will be ever closer to
depletion.
– A renewable energy source, solar energy, would require the use of
about 20% of U.S. land area (about 450 million acres) to support a system
that would supply only ½ of all current energy consumption, and the
U.S. oil and gas reserves will have nearly run out by 2050, leaving us
with environmentally problematic coal, or nuclear energy.
Water*
– Water is essential for all life, including productive agriculture,
whereas agriculture consumes about 85% of fresh water but water shortages
are increasing in the West.
– Rainfall is used directly by crops, is stored in diverse water bodies
and in underground aquifers. Groundwater provides 31% of the water used
in U.S. agriculture and are, on average, being depleted 25% in excess of
recharge rates.
– Even if water management is substantially improved, the 560 million
Americans by 2060 will have only 700 gallons/day/capita, considered a
minimum for all human needs. This assumes even distribution, which is not
the case – much of our population and agricultural production is in arid
and semi-arid regions.
The Economy
– In America’s Forgotten Majority, Ray Teixeria and Joel Rogers
write that "from 1973 to 1998, in an economy that almost doubled in
real terms, the wage of the typical worker in production and
nonsupervisory jobs (80 percent of the workforce) actually declined by 6
percent, from$13.61 to $12,77 an hour.**
– Harvard Professor George Borjas calculated that mass immigration
costs American workers $133 billion per year in wage depression and job
loss.
The Solution: U.S. Population Stabilization and Conservation
– To avoid the harsh outcomes projected for the future, we must
stop U.S. population growth, and excess immigration, and conserve our
land, water, and energy resources that are vital for a sustainable economy
and environment.
* Data derived from "Food, Land, Population, and the U.S.
Economy", by Drs. David Pimentel and Marie Giampietro
** America’s Forgotten Majority: Why the White Working Class Still
Matters by Ray Teixeira and Joel Rogers, Basic Books, 2000.
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