Using electrical energy is a lot
like driving a car. We seldom think of the risks attached until a problem
occurs. We flip a switch and turn on whatever device we need to use, whether
that’s an air conditioner, computer, toaster, or a TV and think nothing of it.
Like magic, it’s there when we need it. For most of us, electrical power is
just a genie in a box that operates unseen.
The rate at which Americans consume
electrical power is the world’s highest. According to a 2009 survey conducted
by the UN, on a per person basis we use more than twice the rate of people in
the European Union, which is in second place. Without finding fault, our
lifestyle is energy intensive. So be it. That situation seems unlikely to
change anytime soon.
The reality of producing all that
power is complex. No source of electrical energy is free from risk or challenges.
Let’s review a few of the significant energy issues that most Americans tend to
ignore or are indifferent to.
Coal is a good place to start since
it accounts for about 50 percent of our electrical energy. In terms of
smokestack emissions, coal-fired power plants produce about 25 percent of our
nitrogen oxides (nitric oxide and nitrogen dioxide), a key ingredient of smog,
one-third of the country’s carbon dioxide, 40 percent of the mercury, and
two-thirds of our sulfur dioxide, which when combined with atmospheric water
vapor produces acid rain. Putting the hazards of carbon dioxide aside, mercury
is a well-known carcinogen. It can poison fish in bodies of water hundreds of
miles from the coal-burning plant. As a potent neurotoxin, mercury has been
demonstrated to cause reduced intelligence in hundreds of thousands of children
each year. At the average coal-fired plant, mercury is injected into the
atmosphere at rates of approximately 25 pounds per 100 megawatts, making those
plants as a group the largest contributor of airborne mercury pollution in the U.S.
Here’s another little-known fact
that may surprise readers. In March 2011, the highly respected American Lung
Association (ALA) released a report (Toxic Air: The Case For Cleaning Up
Coal-Fired Power Plants) that stated: “Particle pollution from power plants is
estimated to kill approximately 13,000 people a year.” The ALA
report singled out coal-fired power plants as producing more hazardous air
pollution in the U.S.
than any other source of industrial pollution.
When compared to coal-fired power
plants, natural gas-fired plants, which produce slightly less than 25 percent
of the U.S.
power supply, emit substantially fewer pollutants: about half as much carbon
dioxide, and several hundred times less sulfur dioxide, nitrogen oxide, and
particulates. Although those fewer emissions may seem to be positive factors,
the fine particulates that gas-fired plants emit have significant adverse human
health effects because they by-pass our bodies' natural respiratory filters and
can penetrate deep into the lungs. A number of scientific studies have found no
safe exposure to those particulates.
Nuclear plants produce materials
that generate radiation and may come into contact with people through small
releases during routine plant operation, accidental releases during operation
that range from small to catastrophic, accidents in transporting radioactive
materials, and escape of radioactive wastes from confinement. The principal risks
associated with nuclear power arise from health effects of radiation since
subatomic particles are able to penetrate deep inside the human body where they
can damage biological cells and cause cancer. If radiation affects fetal
development, genetic diseases may result. It should be noted that recent
technical improvements in nuclear power generation have greatly decreased many
of the above risks though no new plants using those advances have been built in
the U.S. ,
largely because of the onerous regulatory process and environmental activism.
Solar power is one of the two
current darlings of environmentalists but owns its share of risk. Although
solar cells generate no pollution during operation the area required for a
large-scale solar power generating station is considerable, as is evidenced by
the 21 million acres of arid and semi-arid public lands in Arizona, California,
Colorado, Nevada, New Mexico, and Utah the federal government designated for
the solar power industry to engage in industrial-scale solar development. That
public acreage is more than the federal government has opened for oil and gas
exploration over the last ten plus years and will be severely damaged as
natural habitat for the foreseeable future if developed as intended.
Wind power is not free from risk or
environmental hazards. Witness the hundreds of birds, including dozens of
eagles in California
alone that have died recently as a result of fatal collisions with rotating
turbine blades. Other negative effects include potentially irreversible
destruction of thousands of square miles of natural habitat, and visual and
noise pollution. It should be noted that health risks to humans from both solar
and wind power are negligible.
Our choices in power generation
should be clear but aren’t. Witness the shameless propensity of supporters of
one technology or another to flat out lie in national advertising campaigns
about the benefits of that technology. Nor do Americans seem the least bit
interested in reducing our enormous per capita energy consumption. Heaven
forbid.
My guess is we’ll stumble along with
our present system well into the foreseeable future with lobbyists from
non-renewable energy industries wining and dining members of Congress and
funneling megabucks into their re-election campaigns while expecting and
receiving favorable treatment. It’ll be business as usual while each year many
thousands of Americans suffer avoidable health problems and deaths from
hazardous by-products of electrical power generation.