Three new studies demonstrate climate sensitivity to CO2 is very low
As climate researcher Paul "Chip" Knappenberger pointed out in a tweet this week, two new studies provide a double-whammy to climate alarm because 1) man-made aerosols have been found to have minimal cooling effects and 2) at least 50% of recent global warming is not anthropogenic. Therefore, the possible role of CO2 in causing global warming has to be far less than previously assumed, and the "climate sensitivity" to doubled CO2 levels therefore very low. In addition, a third paper published this week demonstrates that radiative imbalance from large volcanic eruptions is re-established within ~2 years, not 20+ years as claimed by James Hansen as his excuse for the 18 year "pause" in global warming. This means that volcanic aerosols have minimal long-term cooling effects and therefore, the warming effect of CO2 has to be much lower than assumed in Hansen's climate models and thus climate sensitivity estimates must be loweredeven further.
