The paper also shows that tiny variations in Total Solar Irradiance [TSI] of less than 1 W/m2 correlated with significant changes in reconstructed temperature of up to 5C. The IPCC claims that changes in TSI during the 20th century of about 1.5 W/m2 cannot account for 0.7C observed global warming, but data from this paper and others suggests otherwise. In addition, the paper shows TSI lagged by 50 years is better correlated to reconstructed temperatures, perhaps as a result of the enormous thermal inertia of the oceans.
|Modern temperature shown by double arrows on left vertical axis, coldest winter temps from 8 otoliths shown by red boxes. Grey line is variation in total solar irradiance [TSI] and black line is TSI lagged 50 years.|