portland independent media center  
images audio video
newswire article commentary global

environment

Is this what the Chemtrails people were referring to?

The UK Guardian reports Friday that the "US answer to global warming: smoke and giant space mirrors....Washington urges scientists to develop ways to reflect sunlight as 'insurance'"

Is this a refernce to chemtrails ?
I've been skeptical about the whole chemtrail thing, but now the UK Guardian reports

"The US government wants the world's scientists to develop technology to block sunlight as a last-ditch way to halt global warming, the Guardian has learned. It says research into techniques such as giant mirrors in space or reflective dust pumped into the atmosphere would be "important insurance" against rising emissions, and has lobbied for such a strategy to be recommended by a major UN report on climate change, the first part of which will be published on Friday."

The "reflective dust" part sounds suspiciously like what so-called tinfoil-hat people called chemtrails.

Perhaps I was wrong and there is use of chemtrails.


The whole article is here:

 http://environment.guardian.co.uk/climatechange/story/0,,1999968,00.html

hats off 29.Jan.2007 10:59

rAT

You don't need a foil hat to see this crap being sprayed. Seeing is believing when it comes to chemtrails. Sometimes I think Aliens may be running the govt after all.

no metal hat maybe 29.Jan.2007 18:42

but

you need some kind of magic helmet to forget that the exact same trails (simply referred to as "contrails" until the '90s) have been visible since airplanes started flying that high. "Normal ones dissipate, anything that sticks around is a mysterious substance" is the problematic meme here. Contrails persist in the same conditions that any other cirrus clouds persist, and grow where cirrus clouds grow.

"The objectives of our study have been firstly to investigate the secondary flow structure within clouds to understand the processes that cause contrails to spread out to form cirrus clouds."

 link to www.mpimet.mpg.de

Material on contrails, including the ones the tinfoil people label as abnormal, is easy to find on the web and no more difficult to understand than any other kind of weather physics, but unfortunately real science is boring.

oh i forgot 29.Jan.2007 18:43

look it's a picture


of course anything comprehensible to a mass audience 29.Jan.2007 19:18

must be disinformation, right?

"A contrail will form behind a jet if, as exhaust gases cool and mix with surrounding air, the humidity is high enough and the temperature low enough for liquid water to condense. The air needs to be supersaturated and the temperature generally below -40°F, something that typically occurs only in the upper troposphere, the atmospheric layer several miles up where airliners cruise. Under those conditions, water vapor from the jet's exhaust and secondarily from the atmosphere condenses into water droplets. Within a few tens of feet behind the aircraft, these droplets freeze into the snow-white particles that bring the contrail to life.

"How long a newly formed condensation trail sticks around depends on the ambient humidity. If humidity is low, contrails will rapidly dissipate, looking like a comet's tail. The ice particles sublimate—meaning go straight from ice to vapor—and you're back to blue sky. If humidity is high, however, contrails can persist—and those are the ones that trouble climatologists."

 http://www.pbs.org/wgbh/nova/sun/contrail.html