Carbon dioxide and water - vapour had their own sets of absorption - lines that did not exactly coincide and it was reaffirmed that water vapour was relatively unimportant in the dryer upper levels of the atmosphere. (skepticalscience.com)
By contrast, in 2010 and 2011, a persistent dip in the jet stream brought a stronger southwesterly flow of air at upper levels of the atmosphere along the East Coast, which helped turn many storms out to sea before reaching landfall. (climatecentral.org)
When the team looked at the overall balance between the radiation upward from the surface of the ice sheet and the radiation both upward and downward from the upper levels of the atmosphere across all infrared wavelengths over the course of a year, they found that in central Antarctica the surface and lower atmosphere, against expectation, actually lose more energy to space if the air contains greenhouse gases, the researchers report online and in a forthcoming Geophysical Research Letters. (sciencemag.org)