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Quote of the Week
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Quote of the Week: "If you wanted to minimize the contrail climate effect
you might want to think about rescheduling flights," Dr Nicola Stuber of
Reading University in an interview on recent study on global warming and
night flights
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Aviation Conspiracy Newsletter
#381...............................................................................June
18, 2006 Past newsletters can be accessed at:
http://pages.prodigy.net/rockaway/ACNewsmenu.htm
The PASSUR air****t
flight
tracking system at many major U.S. air****ts
http://www.passur.com/sites.htm
(you must have Java installed to view it) Bill Mulcahy
rockaway@[EMAIL PROTECTED]
Night Flights Twice As Bad For Environment!!!
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As Bill Sees It: (Editorial) New Evidence Of Harmful Effects Of Night
Flights!!! It is well known, especially by its victims on the ground who
lose needed sleep, that night flights are harmful to people's health. Now
it
seems that evidence is building that night flight contrails are big
contributor to the global warming phenomenon. According to stories this
week
a recent study show that while daytime flight contrails actually reflect
the
sun's rays and cool the earth, night time contrails hold more of the
earth's
heat from rising. This apparently greatly increases their impact on global
warming. Will that "little" thing stop the mindless expansion of this
highly
polluting industry; of course not. However, it does add another negative
impact that the FAA and the airlines will have to get their spin doctors
to
explain in their "Airspace Redesign" and air****t expansion environmental
impact studies. Maybe it will be the straw that will eventually break this
nasty industry's back. Of course this study was done by a European
university and not an American university. No doubt that is because if an
American school did such a study they would get no federal funding for it
and probably other federal funding reduced or eliminated. If you think
that
is farfetched I suggest you do some research into how the EPA got its
funding for its Office of Noise Abatement and Control (ONAC) removed in
1981by the trans****tation industry. This industry sees any effort to
protect
the health of the American people from their highly polluting industry as
a
threat to their pocketbooks. Apparently they haven't extended their
tentacles to European universities yet. I'm sure their working to remedy
that oversight.
LONDON: Cutting Night Flights Could Reduce Global Warming!!! Reducing the
number of night flights can help in the fight against global warming,
according to researchers at the Reading University. A study by these
scientists found that contrails, or the white streaks of condensation left
behind by jets, trap energy emitted from Earth's surface. Flights taking
off
during daytime have less impact as the contrails reflect some of the Sun's
energy back into space, which leads to a cooling effect. The researchers
found that while only 25 per cent of flights in Britain take off between 6
p.m and 6 a.m., they account for 60 to 80 per cent of global warming
linked
with contrails. In the U.S., on the east coast, night flights account for
36
per cent the contrails generated, but they account for 53 per cent of the
annual warming due to contrails. For southeast Asia, the percentage is
about
70. http://www.earthtimes.org/articles/show/7178.html
US Arrests 55 Illegal Workers At Dulles Air****t: (Reuters) - U.S.
immigration officials said on Wednesday they had arrested 55 illegal
immigrants who were working at a construction site in the secure area at
Dulles International Air****t. Agents from Immigration and Customs
Enforcement made the arrests early in the morning as the workers were
being
bussed to the construction site and were attempting to pass through a
security checkpoint. ICE said in a statement that one of the workers had a
security badge that grants unescorted access to the tarmac of the
Virginia-based air****t that serves Wa****ngton DC. "Unauthorized workers
employed at sensitive sites and critical infrastructure facilities . pose
serious homeland security threats," said Julie Myers, assistant secretary
of
homeland security in charge of ICE. "Not only are the identities of these
individuals in question but these aliens are also vulnerable to
exploitation
by terrorists and other criminals given their illegal status in this
country," she added in the statement
http://abcnews.go.com/US/wireStory?id=2076211
@[EMAIL PROTECTED]
Aviation News Stories This Week
http://www.earthtimes.org/articles/show/7178.html
Cutting Night Flights Could Reduce Global Warming
Reducing or eliminating commercial airline flights at night, and
especially
in winter, could help slow global warming by lowering greenhouse gas
emissions caused by air traffic, according to a study by meteorologists at
the University of Reading in southern England.
Overall, aviation accounts for only about 2 percent of carbon dioxide
emissions globally, according to the International Air Trans****t
Association, but at high altitudes jet exhaust may cause a warming effect
that is two or three times greater than that of carbon dioxide.
Contrails, trails of ice that condense when the hot exhaust from jet
engines
hits the cold air at high altitudes, can last in the atmosphere for hours
and spread to cover thousands of square miles before they eventually
dissipate. The icy contrails act like giant mirrors suspended in the sky.
By
reflecting the sun's radiation, they cause some cooling, but they also
block
heat rising from the Earth's surface, which contributes to the greenhouse
effect and global warming.
At night, the warming effect is magnified, because there is no reflective
cooling effect to help counter it. And the problem becomes worse in
winter,
when cold, moist air is more likely to exist at all elevations. According
to
the researchers, contrails are almost twice as likely to form in winter
than
in summer.
The research study, which was re****ted in the journal Nature, found that
night flights accounted for only 25 percent of the daily air traffic but
contributed 60 percent to 80 percent of the warming caused by commercial
aviation. At the same time, winter flights accounted for only 22 percent
of
the annual number of commercial flights, but they contributed half of the
annual warming effect.
One reason regulators and environmentalists are particularly concerned
about
greenhouse gas emissions from jet airplanes, despite the relatively low
level of carbon dioxide the planes produce, is that international
commercial
air travel is one of world's the fastest growing sources of greenhouse
gases.
Joyce E. Penner, an atmosphere expert at the University of Michigan, told
the Los Angeles Times. "If we control emissions from other sources and
don't
do something about aircraft, then in the future they are going to become a
dominant source. Maybe there are ways to avoid such a high climate impact
by
scheduling different routings."
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