Satellite data confirm the IPCC climate models
GISS Goddard Institute for Space Studies, operated by NASA. The GISS is a foremost source of climatology data, collating more than 5 decades of satellite and ocean and land-based sensor data to match adapting climate models. They announced in 2007 the stunning news that 5 of the warmest years on record had occurred in the previous decade. Dr. Jim Hansen is a prominent atmospheric scientists with a long association with NASA and the GISS.
With the latest research findings, there is now sufficient hard evidence to show that average global temperatures are rising faster than ever.
There is hard evidence that average global temperatures have been rising since the advent of the Industrial Revolution (towards the end of the 18th century), when largescale combustion of fossil fuels began.
NASA's Goddard Institute for Space Studies (GISS) has been analysing data from a global network of meteorological stations, ships and satellites, since the 1970s, and currently holds what is possibly the most comprehensive record of Earth surface, ocean and atmospheric temperatures. Their findings are conclusive:
Taking the average temperature for the years 1951-80 as a baseline for comparison, GISS has prepared the above maps, which show how much deviation there is in the two decades, 1970-79 and 2000-09. All of the deviations are positive, and at an increasing rate of increase. This observation is exactly in line with the theory that greenhouse gases from human activities are responsible for the retention of heat by the Earth, the so-called 'Greenhouse Effect'.
Solar activity, aerosols, and C02 are all modelled against this data to determine the correlations. The conclusion is inevitably the same: the increase in temperature is real and is due to the changes in balance between the amount of energy the Earth receives from the Sun, and the amount it radiates back into space. The incoming radiation varies very little, but the amount of energy re-radiated has changed significantly. This change cannot be correlated to the variations in solar activity. The conclusion is that the cause is changes to the composition of the atmospheric gases.
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