http://science.nasa.gov/science-news/science-at-nasa/2012/22mar_saber/
Mlynczak is the associate principal investigator for the SABER instrument onboard NASA’s TIMED satellite. SABER monitors infrared emissions from Earth’s upper atmosphere, in particular from carbon dioxide (CO2) and nitric oxide (NO), two substances that play a key role in the energy balance of air hundreds of km above our planet’s surface.
“Carbon dioxide and nitric oxide are natural thermostats,” explains James Russell of Hampton University, SABER’s principal investigator. “When the upper atmosphere (or ‘thermosphere’

heats up, these molecules try as hard as they can to shed that heat back into space.”
That’s what happened on March 8th when a coronal mass ejection (CME) propelled in our direction by an X5-class solar flare hit Earth’s magnetic field. (On the “Richter Scale of Solar Flares,” X-class flares are the most powerful kind.) Energetic particles rained down on the upper atmosphere, depositing their energy where they hit. The action produced spectacular auroras around the poles and significant1 upper atmospheric heating all around the globe.
“The thermosphere lit up like a Christmas tree,” says Russell. “It began to glow intensely at infrared wavelengths as the thermostat effect kicked in.”
For the three day period, March 8th through 10th, the thermosphere absorbed 26 billion kWh of energy. Infrared radiation from CO2 and NO, the two most efficient coolants in the thermosphere, re-radiated 95% of that total back into space.
http://www.telegraph.co.uk/earth/en...-have-caused-an-ice-age-claim-scientists.html
Ice age atmosphere was 'warm', claim scientists
A warm atmosphere rich in carbon dioxide may have surrounded the Earth in an ancient ice age, new research has suggested.
By Richard Alleyne, Science Correspondent 6:51PM GMT 01 Jan 2009Comments78 Comments
Researchers at the University of Birmingham found that 630 million years ago the earth had a warm atmosphere full of carbon dioxide but was completely covered with ice.
The scientists studied limestone rocks and found evidence that large amounts of greenhouse gas coincided with a prolonged period of freezing temperatures.
Such glaciation could happen again if global warming is not curbed, the university's school of geography, earth and environmental sciences warned.
While pollution in the air is thought to trap the sun's heat in the atmosphere, causing the planet to heat up, this new research suggests it could also have the opposite effect reflecting rays back into space.
This effect would be magnified by other forms of pollution in the earth's atmosphere such as particles of sulphate pumped into the air through industrial pollution or volcanic activity and could create ice age conditions once more, the scientists said.