Sample Policy TSOs
Will Electric Vehicles Really Reduce Pollution?
Does question mark hint the answer?
Introduction
- Internal combustion engine vehicles are responsible for the vast
majority of pollutants that plague urban areas today.
- These emissions are directly responsible for many of the air quality
problems faced in major urban areas.
Pollution from power plants
- Electric vehicles produce little or no pollution directly; most of
the pollution associated with their use is created at the power plant
that provides their electricity. [Table]
- While studies of the pollution-reducing ability of electric vehicles
in California are quite favorable, they cannot be applied to the rest of
the world as a whole.
- [ending paragraph] We can expect similar results for the United
States, namely, that while electric vehicles produce much less carbon
monoxide and hydrocarbons, they use similar levels of nitrogen oxides and
carbon dioxide, and increased levels of sulfur oxides.
Enhanced control of pollution at the source
- Not all pollutants related to electric vehicles arise from the
generation of electricity.
- While electric vehicles may not always hold an outright advantage in
terms of pollution reduction, they allow for more control over the
pollution that is generated.
- The use of electric vehicles would allow even further decreases in
auto emissions over time because only about 10,500 power plants will
have to be monitored, maintained, and upgraded as opposed to the over
100 million private automobiles.
- Because so many tradeoffs in local versus global pollution are
involved, it is impossible to say with certainty that electric vehicles
provide the best short term solution to transportation related
pollution.
Revised
The numerous tradeoffs between local and global pollution vitiate
any conclusion as to the effectiveness of electric vehicles on
transportation pollution
Conclusion
Abstract. The amount of pollution created by electric vehicles
depends mostly on the source of the electricity used to charge them.
This makes it impossible to determine if electric vehicles pollute less
than internal combustion engine vehicles without considering where they
are to be deployed and by what sources of electricity they are to be
powered. An electric vehicle that is charged with energy from a clean
source, like hydroelectric power, will produce very little pollution,
while one charged with energy from an unclean source, like coal or oil,
may produce more pollution than an internal combustion engine vehicle.
The sources of energy for most regions fall somewhere between these two
extremes. The use of electric vehicles will allow new possibilities in
pollution control and management that may outweigh some of their
potential failings. While not ready to be used everywhere, electric
vehicles have the potential to pollute much less than internal
combustion engine vehicles.
The Future of Nuclear Power Policy
Not a great title; want to hint at or give THM
Intro and Background
- By utilizing developed, but unimplemented technology, and by
educating the general public about the realities of nuclear power, the
United States can lead the way to cleaner power while, at the same time,
constructively use much of what is now deemed nuclear waste.
- Thus the fuel in a nuclear reactor does not contain enough
fissionable uranium to explode.
- In the worst case disaster for a nuclear reactor, known as a
meltdown, the core overheats and sinks into the ground in a meltdown.
- The potential dangers of a meltdown, while unpleasant, are not as
severe as those of a nuclear explosion.
- A realistic and productive review of nuclear power must, however,
balance the potential dangers against the likelihood of occurrence.
- In contrast to these unlikely dangers, nuclear power releases fewer
pollutants and so has less impact on general health and the environment.
[with Table]
Three Mile Island and Chernobyl
- Not TS.Now I wish to consider in some detail the 1979
radiation release at Three Mile Island. [with Figure]
- Despite the impression that the people of Middletown, PA were
irrevocably damaged by the radiation released at Three Mile Island, the
exposure was small compared to the exposure from natural radiation.
- The 1986 explosion and fire at Chernobyl in the then-Soviet Union
was much worse than the Three Mile Island accident, but could not occur
in a United States reactor.
- While the core did not explode, as it cannot, the heat produced was
sufficient to ignite surrounding materials.
- It is important to recognize, however, the gross incompetence
required for this disaster to occur.
- Even more importantly, reactors in the United States do not have the
design flaws inherent in the Chernobyl design.
- Plants, including Three Mile Island and Chernobyl, had sensible
regulations to prevent such disasters; the problem was that the
procedures were broken.
Fuel Recyling
- Despite these choices, it is clear that re-processing of spent fuel
significantly reduces the nuclear waste problem, and does not contribute
to, and may even work against, nuclear proliferation.
- Much of the dangerous, long-lived nuclear waste that the country is
now scrambling to store are not actually wastes, but fuels that we are
choosing not to utilize.
- The United States does not recycle fuel because of misconceived
concerns about contributing to nuclear proliferation.
- Not TS. There are also concerns about transporting nuclear
fuel rods for reprocessing.
- While not contributing to nuclear proliferation, reactors designed
to burn reprocessed fuel could be used to burn the surplus of weapons
grade plutonium.
Conclusion
Abstract. Sound decisions on nuclear policy require an
understanding of the physical principles governing their operation, and
realistic evaluations of the risks they pose. Contrary to popular belief,
nuclear power reactors cannot harbor a nuclear explosion. Since both
reasonable and unreasonable fears exist about the safety of reactors and
of the potential dangers caused by accidents, it is useful to consider
the two most serious nuclear power accidents to date, Three Mile Island
and Chernobyl. Modern plant designs make such accidents unlikely to
occur again. The Chernobyl plant actually had ties to nuclear weapon
production, which is a fundamental concern with nuclear power, as is the
disposal of nuclear wastes. Both of these issues will be discussed in
the context of fuel recycling. From this it will be clear that nuclear
power plants both are safe enough for commercial use and should stay in
operation as a means of reducing bomb grade materials.
To cite this page:
Sample Policy TSO
<http://www.physics.ohio-state.edu/~wilkins/writing/Handouts/vgs/policyTSOeg.html>
[Tuesday, 14-Feb-2012 22:43:47 EST]
Edited by: wilkins@mps.ohio-state.edu on
Monday, 04-May-2009 15:21:09 EDT