This section contains images of data showing the distribution of carbon dioxide around the globe and some speculation about its consequences
Satellite data collected over the last 37 years shows an asymmetric latitudinal distribution. Similar data from the GHCN and HADCRUT3 sets are also plotted in the figure and are not in significant disagreement with the satellite data. The plots show the warming/cooling trends in a linear manner over the period for 10 degree bands of latitude.
The GHCN data are from the set of data held by the Global Historical Climate Network [available at: www.ncdc.noaa.gov/oa/climate/ghcn-monthly/index.php]. The HADCRUT3 data are from the Hadley Centre
There is considerable agreement with the three sets of data and it is clear that although the northern hemisphere is warming in the manner prescribed by the models, the southern hemisphere is almost unchanged over the period of measurement. The models break down in a fairly spectacular manner. There is clearly an absence of global warming. The warming takes place in the northern hemisphere in which region most of human activity is concentrated and where the vast majority of industry occurs.
More possible evidence for the asymmetric nature of warming is given by the AIRS Global Map Of Carbon Dioxide From Space shown below.
Although originally designed to measure atmospheric water vapor and temperature profiles for weather forecasting, data from the Atmospheric Infrared Sounder (AIRS) instrument on NASA's Aqua spacecraft are now also being used by scientists to observe the concentration of carbon dioxide in the mid-troposphere (about eight kilometers, or five miles, above the surface).
The global map of mid-troposphere carbon dioxide given in the figure shows that despite the high degree of mixing that occurs with carbon dioxide, the regional patterns of atmospheric sources and sinks are still apparent in mid-troposphere carbon dioxide concentrations. The regions of highest CO2 concentrations are in northern