Thursday, May 24, 2007

Contrails and Aviationsmog

The word Contrail stems from 'condensation' and 'trail'. Aviationsmog (that's what it really is) is caused by airtraffic at great heights. Each day, jetengines of airplanes dump vast amounts of water (ice), CO2, soot particles (condensation nuclei), aërosols and chemical substances. Airtraffic thus not only alters the properties of the higher regions of our troposphere but also all the regions below, right down to groundlevel. This extra layer of man-made high-altitude smog probably infuences weather, climate and the quality and quantity of the sun's radiation that reaches the surface of Earth ("global dimming."). Aviation-smog is responsible for more clouds, rain, drought, bigger hailstones (megacryometeors), a stronger greenhouse effect (global warming), and, maybe, even gives extra power to hurricanes. Still, aviation-smog does not get the scientific and political attention it deserves

Meteorologists ignore contrails and aviationsmog, and their effect on sunlight, weather and climate!

Wednesday, May 02, 2007

clipped from

"Al Gore's not going to be rounding up Jews and exterminating them. It is the same tactic, however....The goal is the United Nations running the world....When you have an enemy to fight, then you can unite the entire world behind you, and you seize power. That was Hitler's plan. His enemy: the Jew. Al Gore's enemy, the U.N.'s enemy: global warming."
-- Glenn Beck, plugging his CNN special on global warming

The War Within

Current events, news, politics, culture, and more from Slate Magazine
 powered by clipmarksblog it

Tuesday, May 01, 2007

Arctic Ice Retreating 30 Years Ahead of Projections

BOULDER, Colorado, April 30, 2007 (ENS) -
Arctic sea ice is melting much more quickly than projected by even the most advanced computer models, a new government funded study has found. Comparing actual ice observations with climate models, the scientists conclude that the Arctic could be seasonally free of sea ice as early as 2020.

Scientists at the National Center for Atmospheric Research and the University of Colorado's National Snow and Ice Data Center have demonstrated that the Arctic's ice cover is retreating more rapidly than estimated by any of the 18 computer models used by the Intergovernmental Panel on Climate Change in preparing its 2007 assessments.

 powered by clipmarksblog it

Petition Against Contrails

You can't look around when you're looking up,
so we've had a look around for you

Petition Against Contrails

Contrails over Neath
It is not everyday that you’ll find The Cloud Appreciation Society petitioning for LESS clouds, but that is exactly what we have just done on a UK Government website.

We signed up to a petition urging the Prime Minister to take positive action to counter the increasing proliferation of aircraft condensation trails – the long man-made clouds that form behind high altitude planes.

There is a growing body of evidence to suggest that contrails result in increased levels of high cloud, which tend to trap in the sun’s heat, increasing surface temperatures in the regions they cover. Lower clouds have the opposite effect – of reflecting away much of the sun’s radiation. Indeed, the effect of all cloud types taken as a whole, seems to be a cooling one. The tendency of contrails to spread out and lead to increased levels of high, ‘cirriform’ clouds is in danger of distorting this effect.

 powered by clipmarksblog it

This page is powered by Blogger. Isn't yours?

Subscribe to Posts [Atom]