According to an article about this new research which you can read at the following website:
http://www.sciencedaily.com/releases/2010/11/101116080321.htm the scientific paper in which these findings are revealed, "documents how, since the development of the very first climate models in the early 1960s, the troposphere has been projected to warm along with the Earth's surface because of the increasing amounts of greenhouse gases in the atmosphere. This expectation has not significantly changed even with major advances in climate models and is in accord with our basic physical understanding of atmospheric processes."
"In the 1990s, observations did not show the troposphere, particularly in the tropics, to be warming, even though surface temperatures were rapidly warming. "
"This lack of tropospheric warming was used by some to question both the reality of the surface warming trend and the reliability of climate models as tools. This new paper extensively reviews the relevant scientific analyses -- 195 cited papers, model results and atmospheric data sets -- and finds that there is no longer evidence for a fundamental discrepancy and that the troposphere is warming."
Well maybe this is the final word on Global Warming, based upon the fact that this study examined longitudinal data, which is more reliable.
Some key scientific facts concerning the troposphere are these:
- Contains 90 Percent of the Atmosphere's mass
- Weather occurs in this layer.
- Temperature in this layer decreases with altitude
- The atmospheric layer which begins at the Earth's surface is known as the Troposphere. It begins at the surface and extends upward 4 to 12 miles (7-20 km). The height of the Troposphere is greatest at the equator, approximately 11-12 miles (18 - 20 km), and it decreases to just under 4 miles (7 km) high near the North and South poles. At the upper surface of the Troposphere is a transition boundary known as the tropopause. The Troposphere and the tropopause are both known as the lower atmosphere (2009).
- (source:http://wiki.ngscied.org/index.php/Layers_of_the_Atmosphere )
If this area is warming then we can now understand why some of the dramatic changes in our weather throughout our planet have been experienced by us in these last years.
Source of image: http://wiki.ngscied.org/index.php/Image:Atmosphere3.gif