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Aircraft vapour trails 'could cause global warming'
Breaking News ^
| 29/04/2004
Posted on 04/29/2004 12:39:18 PM PDT by presidio9
Cloud-like white trails left by aircraft may be playing a significant role in global warming, a scientist said today.
The exhaust plumes contain carbon dioxide and chemicals which can lead to the production of ozone which creates smog.
At the same time, the vapour trails, in the right conditions, can form feathery cirrus clouds which warm the surface of the Earths by trapping heat.
Patrick Minnis, of the USAs National Aeronautics and Space Administrations Langley Research Center in Virginia, studied how the average temperature of the US increased by one degree from 1975 to 1994.
While acknowledging that it was difficult to tell exactly how much of the warming was due to vapour trails, he said their contribution was significant.
Dr Minnis found that as air traffic in the US rose by more than 500% from 1970 to 1995, the number of cirrus clouds in the sky also increased.
Until now scientists have been unable to say whether they increased for natural reasons or because of aircraft.
According to the Minnis study the conditions needed to create natural cirrus clouds did not become more common from the 1970s to the 1990s.
He concluded, therefore, that aeroplane vapour trails also known as contrails which are clouds of ice crystals mixed with exhaust gases, must be responsible.
Andrew Carleton, a climate expert at Pennsylvania State University, who was not involved in the study, said: It suggests we may be having a double whammy here.
He told the USA Today newspaper: Its not good news for the Earth when youve got greenhouse gas increases and youve got ... contrails (that) seem to warm the surface of the Earth.
TOPICS: Culture/Society; Foreign Affairs; Front Page News; Miscellaneous; News/Current Events
KEYWORDS: callingartbell; climatechange; conspiracy; contrails
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1
posted on
04/29/2004 12:39:19 PM PDT
by
presidio9
To: presidio9
SOMEONE CALL ART BELL!!!!
2
posted on
04/29/2004 12:41:15 PM PDT
by
OXENinFLA
(War means fighting and fighting means killing. ----------- PATTON)
To: farmfriend
ping
3
posted on
04/29/2004 12:42:07 PM PDT
by
presidio9
("See, mother, I make all things new.")
To: presidio9
Somebody ought to tell John Kerry before he has his hairdresser fly in again.
4
posted on
04/29/2004 12:42:22 PM PDT
by
dfwgator
To: presidio9
Everyone knows the vapor trails are really a government program to cover the world in mind numbing chemicals so that we'll all accept the new world order. Or at least that's what I read on the internet somewhere.
5
posted on
04/29/2004 12:42:25 PM PDT
by
Rokke
To: presidio9
I have to admit, the days after 9/11 were some of the clearest skies I've ever seen, due to no air traffic.
I hate planes anyway, and would like to see them gone. But I have no doubt they affect the climate one way or another..
6
posted on
04/29/2004 12:43:47 PM PDT
by
Monty22
To: presidio9
Everyone knows global warming is caused by the wings of butterflies.
7
posted on
04/29/2004 12:43:51 PM PDT
by
onedoug
To: presidio9
The key word is "could".
I guess smelly socks could cause Global Warming also.
8
posted on
04/29/2004 12:43:58 PM PDT
by
HEY4QDEMS
To: presidio9
While acknowledging that it was difficult to tell exactly how much of the warming was due to vapour trails, he said their contribution was significant. An alternative theory is that the hot air generated by the global warming theorists is contributing to global warming.
While acknowledging that it was difficult to tell exactly how much of the warming was due to global warning theorists, their contribution is significant.
9
posted on
04/29/2004 12:45:20 PM PDT
by
CaptRon
(Pedecaris alive or Raisuli dead)
To: onedoug
I think global warming is caused by the sun. Global Warming Theory is caused by socialist who want to redistribute the world's wealth to developing nations.
10
posted on
04/29/2004 12:47:00 PM PDT
by
presidio9
("See, mother, I make all things new.")
To: Monty22
I hate planes anyway, and would like to see them gone. ?
11
posted on
04/29/2004 12:47:55 PM PDT
by
jmc813
(Help save a life - www.marrow.org)
To: jmc813
I thought we were back to the ice age?
To: presidio9
I am so sick and tired of this global warming crap. It is readily swallowed hook, line and sinker by the media.
The operative words in this press release, "may cause," is meaningless. The opposite is equally true: it "may NOT cause ..."
It is extraordinary that such pure speculation is immediately embraced as "science" by the media.
13
posted on
04/29/2004 12:49:25 PM PDT
by
Elpasser
(This is science?)
To: presidio9
Here they go again. Twenty-five years ago it was "the coming ice age" and "global cooling" caused in part by--you guessed it--contrails!
14
posted on
04/29/2004 12:49:30 PM PDT
by
catpuppy
To: onedoug
Everyone knows global warming is caused by the wings of butterflies.No it isnt. Its caused by the Imperial Military Industrial complex in collusion with the Bush administration at the behest of the Zionist Occupation Government. Who is funded by NPR..
15
posted on
04/29/2004 12:49:57 PM PDT
by
cardinal4
(Terrence Maculiffe-Ariolimax columbianus (hint- its a gastropod.....)
To: HEY4QDEMS
Our late, departed Golden Retriever, Prior Lake Jake did all he could, while he lived, to contribute to Global Warming.
To: catpuppy
Frightening Quotes from Environmentalists (Attack Of The Socialist-Luddites)
The right to have children should be a marketable commodity, bought and traded by individuals but absolutely limited by the state.
Kenneth Boulding, originator of the Spaceship Earth
concept (as quoted by William Tucker in Progress and Privilege, 1982)
We have wished, we ecofreaks, for a disaster or for a social change to come and bomb us into Stone Age, where we might live like Indians in our valley, with our localism, our appropriate technology, our gardens, our homemade religionguilt-free at last!
Stewart Brand (writing in the Whole Earth Catalogue).
Free Enterprise really means rich people get richer. They have the freedom to exploit and psychologically rape their fellow human beings in the process
. Capitalism is destroying the earth.
Helen Caldicott, Union of Concerned Scientists
We must make this an insecure and inhospitable place for capitalists and their projects
. We must reclaim the roads and plowed land, halt dam construction, tear down existing dams, free shackled rivers and return to wilderness millions of tens of millions of acres of presently settled land.
David Foreman, Earth First!
Everything we have developed over the last 100 years should be destroyed.
Pentti Linkola
If you ask me, itd be a little short of disastrous for us to discover a source of clean, cheap, abundant energy because of what we would do with it. We ought to be looking for energy sources that are adequate for our needs, but that wont give us the excesses of concentrated energy with which we could do mischief to the earth or to each other.
Amory Lovins in The Mother EarthPlowboy Interview, Nov/Dec 1977, p.22
The only real good technology is no technology at all. Technology is taxation without representation, imposed by our elitist species (man) upon the rest of the natural world.
John Shuttleworth
What weve got to do in energy conservation is try to ride the global warming issue. Even if the theory of global warming is wrong, to have approached global warming as if it is real means energy conservation, so we will be doing the right thing anyway in terms of economic policy and environmental policy.
Timothy Wirth, former U.S. Senator (D-Colorado)
I suspect that eradicating smallpox was wrong. It played an important part in balancing ecosystems.
John Davis, editor of Earth First! Journal
Human beings, as a species, have no more value than slugs.
John Davis, editor of Earth First! Journal
The extinction of the human species may not only be inevitable but a good thing....This is not to say that the rise of human civilization is insignificant, but there is no way of showing that it will be much help to the world in the long run.
Economist editorial
We advocate biodiversity for biodiversitys sake. It may take our extinction to set things straight.
David Foreman, Earth First!
Phasing out the human race will solve every problem on earth, social and environmental.
Dave Forman, Founder of Earth First!
If radical environmentalists were to invent a disease to bring human populations back to sanity, it would probably be something like AIDS
Earth First! Newsletter
Human happiness, and certainly human fecundity, is not as important as a wild and healthy planets
Some of us can only hope for the right virus to come along.
David Graber, biologist, National Park Service
The collective needs of non-human species must take precedence over the needs and desires of humans.
Dr. Reed F. Noss, The Wildlands Project
If I were reincarnated, I would wish to be returned to Earth as a killer virus to lower human population levels.
Prince Phillip, World Wildlife Fund
Cannibalism is a radical but realistic solution to the problem of overpopulation.
Lyall Watson, The Financial Times, 15 July 1995
Poverty For Those People
We, in the green movement, aspire to a cultural model in which killing a forest will be considered more contemptible and more criminal than the sale of 6-year-old children to Asian brothels.
Carl Amery
Every time you turn on an electric light, you are making another brainless baby.
Helen Caldicott, Union of Concerned Scientists
To feed a starving child is to exacerbate the world population problem.
Lamont Cole
If there is going to be electricity, I would like it to be decentralized, small, solar-powered.
Gar Smith, editor of the Earth Island Institutes online magazine The Edge
The only hope for the world is to make sure there is not another United States: We cant let other countries have the same number of cars, the amount of industrialization, we have in the U.S. We have to stop these Third World countries right where they are. And it is important to the rest of the world to make sure that they dont suffer economically by virtue of our stopping them.
Michael Oppenheimer, Environmental Defense Fund
The continued rapid cooling of the earth since WWII is in accord with the increase in global air pollution associated with industrialization, mechanization, urbanization and exploding population.
Reid Bryson, Global Ecology; Readings towards a rational strategy for Man, (1971)
The battle to feed humanity is over. In the 1970s, the world will undergo famines. Hundreds of millions of people are going to starve to death in spite of any crash programs embarked upon now. Population control is the only answer.
Paul Ehrlich, in The Population Bomb (1968)
I would take even money that England will not exist in the year 2000.
Paul Ehrlich in (1969)
In ten years all important animal life in the sea will be extinct. Large areas of coastline will have to be evacuated because of the stench of dead fish.
Paul Ehrlich, Earth Day (1970)
Before 1985, mankind will enter a genuine age of scarcity
in which the accessible supplies of many key minerals will be facing depletion.
Paul Ehrlich in (1976)
This [cooling] trend will reduce agricultural productivity for the rest of the century.
Peter Gwynne, Newsweek 1976
There are ominous signs that the earths weather patterns have begun to change dramatically and that these changes may portend a drastic decline in food productionwith serious political implications for just about every nation on earth. The drop in food production could begin quite soon
The evidence in support of these predictions has now begun to accumulate so massively that meteorologist are hard-pressed to keep up with it.
Newsweek, April 28, (1975)
This cooling has already killed hundreds of thousands of people. If it continues and no strong action is taken, it will cause world famine, world chaos and world war, and this could all come about before the year 2000.
Lowell Ponte in The Cooling, 1976
If present trends continue, the world will be about four degrees colder for the global mean temperature in 1990, but eleven degrees colder by the year 2000.
This is about twice what it would take to put us in an ice age.
Kenneth E.F. Watt on air pollution and global cooling, Earth Day (1970)
To: presidio9
They keep presenting this junk science as news when everybody knows it was made up
HERE at the Bush Conspiracy Generator
18
posted on
04/29/2004 12:55:18 PM PDT
by
Fierce Allegiance
(Stay safe in the "sandbox", cuz!)
To: Eric in the Ozarks
WOW!!!!....Your dog wore socks?
To: Rokke
Or at least that's what I read on the internet somewhere. LOL, well, if it was on the Internet, it must be true. Not.
20
posted on
04/29/2004 12:58:05 PM PDT
by
Mark17
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