Tuesday, January 27, 2015

Climate sensitivity studies have been very popular subjects in the recent climate change science literature. Climate sensitivity (CS) means the temperature increase corresponding the doubling of CO2 concentration 280 ppm.  A common feature in this research papers is that the climate sensitivity values are smaller than those of IPCC. In some cases the difference is a very big one like 0.6 degrees versus 1.75 degrees manifested...

Tuesday, January 27, 2015

IPCC has used as radiative forcing value for carbon dioxide (CO2) the equation introduced by Myhre et al. in 1998 even in its latest report AR5. The formula of this equation is:


(1)        RF = 5.35*ln(C/280)


Where RF is radiative forcing in W/m2, and C is the CO2 concentration in ppm. Myhre et al. (1998) informs that “only the direct forcing to a change in WMGG (well mixed greenhouse gases) conce...

Saturday, January 17, 2015


There has been a keen conversation whether the year 2014 was the hottest year since 2010 or not. Many objectors have pointed out that the difference between these years is only in maximum 0.04 degrees. This is less than the measurement accuracy of temperature measurement. In the climate change science it has become a habit that the final results are reported with higher accuracy than the measurements themselves. During my uni...

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