What are chemtrails, and should you be scared of them?

The trail of clouds that billow from an airplane streaking across the sky can be mesmerizing for children and adults alike. Jet engine traffic has become so common that it's not unusual to see several lingering streaks in the afternoon. And though many consider the streaks beautiful against a bright blue sky, others are alarmed about them. Concerns range from the idea that these streaks could exacerbate global warming to more elaborate theories that the government has secretly been dumping harmful substances on the land.

Before we get into the various theories about the possible harmful effects, let's discuss the scientific explanation for these streaks. Jet engines spew out very hot air. And, because water vapor is one of the byproducts of the exhaust, the air is also very humid. However, high in the atmosphere where these jets fly, the air is typically very cold -- often lower than -40 degrees Fahrenheit. Additionally, the atmosphere up there is often of low vapor pressure, or the force exerted by a gas on the surrounding environment.

When a jet engine is spewing out hot, humid air into an atmosphere that is cold and has low vapor pressure, the result is condensation. The water vapor coming out of the engine quickly condenses into water droplets and then crystallizes into ice. The ice crystals are the clouds that form behind the engine. This is why the streaks are called contrails, short for "condensation trails." To help explain it, scientists liken it to seeing your breath on cold days. You may have noticed that puffs of breath dissipate quickly on dryer days. The same is true of contrails: When the atmosphere is more humid, the contrails linger, but when the atmosphere is dry, the contrails disappear more quickly.

This explanation makes sense. But, as author and airline pilot Patrick Smith tells readers, the contrails consist of not just ice crystals and water vapor but also other by products of engine exhaust. These include carbon dioxide, nitrogen oxides, sulfate particles and soot [source: Smith]. Some point out that these, in addition to the extra cloud cover, can have negative environmental effects. And conspiracy theorists have nicknamed contrails "chemtrails" under the suspicion that the government is taking advantage of this scientific phenomenon to secretly release other substances into the atmosphere.

http://science.howstuffworks.com/transport/flight/modern/what-are-chemtrails.htm   

Just want to share something I was told today....
Last November two old friends got together for a late dinner that carried on through the whole of the night. Light was coming up and one of them decided to go up into their garden for some air. Over head they heard aircraft, which they believed to be propeller driven plane. Upon looking up they claimed it looked as if some fine brown substance was being sprayed or coming from the aircraft. It was described as being some form of mist with particles and my friend was more amazed because the aircraft appeared to be circling the town. Not long after the event, both came down with the worst cold they had ever had for a long time. The friend who was in doors at the time came down so bad he took antibiotics which did not seem to work at all. A bug quickly did get around people of this town at the time but being November people would have presumed it was a seasonal cold.
This story I found most unusual as I have always only ever encountered the white chemtrails.

 

"Chemtrails" have been a favourite of various conspiracy, vegan, and one-world-domination websites for the past decade or so !

MOST interesting thing about jet aircraft vapour trails is just exactly what their white colour comes from ==> water vapour !!

The vegan one-world conspiracy nut bags even tried to blame honeybee dwindle on these nonexistent "chemtrails" !!!

 

captainJane wrote:
Just want to share something I was told today....
Last November two old friends got together for a late dinner that carried on through the whole of the night.  Light was coming up and one of them decided to go up into their garden for some air. Over head they heard aircraft, which they believed to be propeller driven plane. Upon looking up they claimed it looked as if some fine brown substance was being sprayed or coming from the aircraft. It was described as being some form of mist with particles and my friend was more amazed because the aircraft appeared to be circling the town.  Not long after the event, both came down with the worst cold they had ever had for a long time.  The friend who was in doors at the time came down so bad he took antibiotics which did not seem to work at all. A bug quickly did get around people of this town at the time but being November people would have presumed it was a seasonal cold.
This story I found most unusual as I have always only ever encountered the white chemtrails.
 

  

FIRST OFF, I love the way that you have encountered something that doesn't even exist, captainJane !!!

ALL that you can see from jet planes are their vapour trails ~ any chemical residues are invisible to your naked eyes ~ especially from down on ground level !!   

SECONDLY, the so-called "chemtrails" are supposedly linked to jet planes, NOT propellor-driven..

IF your friends saw something being "sprayed" from a plane while it was circling ~ then I would suggest that was 'dumping fuel' before returning to the airport/airfield, so as to reduce fire risks !   

"FIRST OFF, I love the way that you have encountered something that doesn't even exist, captainJane !!!"
My friend not me. As I wrote "Just want to share something I was told today."

As for dumping fuel, what was described to me I wouldn't have thought they would dump fuel at such a low level and there is no airport near by to warrant a low pass whilst dumping fuel. I also did not say this was related to Chemtrails, I posted here to point out other things are being sprayed, which numerous governments have admitted to doing, spraying the population with virus's etc. All I know is, a short while after this event, a great amount of people were getting ill. There are officials who have openly admitted to the process.
There, I think I have replied without sarcasm or bitching of any kind. Which is uncalled for and NOT helpful. I thought we were here to share not be catty to the people who sharing and learning from each other.

Just getting my point across hopefully causing no offence.
I do hope this forum is not going to become the same as another place I used to frequent, the bitching killed it.    I will not tolerate ass holes in life or on the internet and do not intend to become one myself.
  ::lightsab::

Nice one. @Beekeeper.
"The vegan one-world conspiracy nut bags even tried to blame honeybee dwindle on these nonexistent "chemtrails" !!!"
The only nutbag I am seeing is you! Wind your neck in and buzz off. I will be polite by saying please.  

Reply with quote

What are chemtrails, and should you be scared of them?

Post by captainJane on Fri Jan 17, 2014 9:01 pm


The trail of clouds that billow from an airplane are Contrails and are made of water, in the form of a suspension of billions of liquid droplets or ice crystals.

Those contrails do form clouds and do contribute to "global dimming" which affects the whole worlds' weather.

Korben Dallas wrote:Reply with quote

What are chemtrails, and should you be scared of them?

Post by captainJane on Fri Jan 17, 2014 9:01 pm


The trail of clouds that billow from an airplane are Contrails and are made of water, in the form of a suspension of billions of liquid droplets or ice crystals.

Thanking "Korben Dallas for the informative reply.

Lurker wrote:Those contrails do form clouds and do contribute to "global dimming" which affects the whole worlds' weather.

Thanks Lurker. I will relay the last two comments above to my friends concerned. They are not on the internet so much. Hoping to entice them to become involved and curious as to what is really happening.

Lurker wrote:Those contrails do form clouds and do contribute to "global dimming" which affects the whole worlds' weather.

Agreed as well as the Co2




edit
it is also rare to dump fuel over a populated area

It's easy to get pulled in by stories like this when there are so many horrible things being done by powerful people every day. But from what I understand, contrails aren't nearly as harmful as some make them out to be.

Korben Dallas wrote:

Lurker wrote:
Those contrails do form clouds and do contribute to "global dimming" which affects the whole worlds' weather.

Agreed as well as the Co2

edit
it is also rare to dump fuel over a populated area

 

IT'S also illegal, as well as rare... (They should be dumping either out over the sea, or out over open fields or forests; and from a height, for better 'dispersion'..).

But it does happen occasionally..

Anyone who thinks otherwise is only kidding themselves.

MUCH the same with "crop dusters" aerial-spraying of farms ~ it IS illegal to spray while plants are flowering, when the wind is blowing, or allowing any drift over neighbouring farms ~ but again, that does also happen (and FAR too often, in some areas..).   

Agreed. @ Beekeeper.

it was once illegal to have any aircraft flying over not to be showing on the radar. Again we have MANY aircraft leaving trails with most of them not showing up on radar at all.

A lot of airlines are at it overhead. People should be screaming about this. No news channel has ever mentioned a thing about the subject, it is like it has never happened. 17_09_14

Aer Lingus
EL174/ein17a
Airbus A320-214


Jet2
Boeing 737
G-CELX


British Airways
Airbus A319-131
G-EUPR

Ryanair
Boeing 737-8AS
EL-EBF

British Airways
Airbus A320-232
G-EUYX




British Airways
Airbus A320-232

Why is it that some planes leave a short white con trail in their wake that evaporates fairly quickly while others leave a large white stripe behind them that doesn't evaporate but spreads out filling the sky?

captainJane wrote:

Nice one. @Beekeeper.
"The vegan one-world conspiracy nut bags even tried to blame honeybee dwindle on these nonexistent "chemtrails" !!!"
The only nutbag I am seeing is you! Wind your neck in and buzz off. I will be polite by saying please.  

ALL you have done all year is to add to the evidence that you are one complete nutter, C J.

YOU tried to chase people off this site all those months ago ~ yet is you and your constant stupidity that's "missing in action" these days ~ while those you saw fit to attempt you witless bullying on are still here..

AND by the way that this thread "still has legs" after all these months, it now seems that someone else on here must be just as congenitally insane as what you were when you posted this old shite !!!

captainJane wrote:
A lot of airlines are at it overhead. People should be screaming about this. No news channel has ever mentioned a thing about the subject, it is like it has never happened. 17_09_14

BLAH, blah, double blah...

A PITY that people can't refer to contrails and air pollution in general by their correct names, rather than referring to the tired old nonsensical "chemtrails" fantasies that have been doing the laps of the conspiracy sites for more than a decade now...

SEVEN or eight years ago, there were people trying to claim that some evil government agencies were colluding with the world's airlines to somehow load up the "contrails" (also known as "vapour trails" in many parts of the world) with Aluminium oxides, which in turn was supposedly being used to poison the environment, and change the world's ecology..

DESPITE the fact that they could never actually supply any physical proof to back up their claims ~ sometimes I have to wonder if such nonsense assertions are being deliberately spammed around so as to obfuscate discussions over regular ongoing corporate pollution ?

MUCH like the same way that mining, oil, gas and energy corporations are constantly flooding the airwaves with their anti-'Cimate Change' propaganda..

Tommy Monk wrote:Why is it that some planes leave a short white con trail in their wake that evaporates fairly quickly while others leave a large white stripe behind them that doesn't evaporate but spreads out filling the sky?

Found it:

Contrail Science wrote:[T]here are two main reasons why some planes leave trails and some nearby planes do not. The less common reason, is that different planes have different engines. Some engines will leave a contrail in air where another engine will not. Here, for example are an Airbus A340 (maiden flight: 1991) on the left, leaving contrails, and a Boeing 707 (maiden flight: 1957) not leaving contrails. Both are flying at 33,000 feet (part of a German test to study contrail formation), but the newer engines of the A340 produce more water vapor at a different temperature, and so make contrails.

'Contrails' is short for 'condensation trails' and thus, simply water vapor. 'Chemtrails' on the other hand, are different, but quite real.

But that is my question....



All modern planes have modern engines, some leave a regular con trail which evaporates very quickly while others leave a large trail across whole sky area without evaporating and actually spreading outwards to fill larger areas.

I know that is your question. I was trying to answer it.

Some engines leave more water vapor and the contrail will last longer and dissipate in the atmosphere.

Tommy Monk wrote:But that is my question....



All modern planes have modern engines, some leave a regular con trail which evaporates very quickly while others leave a large trail across whole sky area without evaporating and actually spreading outwards to fill larger areas.

it is also almost impossible to judge height, as some aircraft are bigger than others,,,the upper atmosphere is not homogenous but rather "layered" some layers have the conditions to form contrails whilst others do not....

But con trails evaporate quickly at height, the higher the quicker.



But what we are sometimes seeing are more than just condensation and/or vapour....

@(very)Lone(ly) Wolf (with no teeth), just to quote you here, "while those you saw fit to attempt you witless bullying on are still here.." and you call me stupid! I take it where you live education hasn't yet arrived.

Back to the topic, I was shown these videos not too long ago by a friend (don't worry if you don't grasp the concept of friends Lone Wolf, you may yet get one) and I think they are conclusive in confirming the existence of Chemtrails.