Climate alarmists have attempted to use the aerosol forcing produced by burning carbon (fossil) fuel and natural volcanic emissions to explain-way the failure of IPCC models to predict draconian increases in global temperatures.
Now, the IPCC’s excuse for these failed predictions has been challenged in a paper called: Rethinking the lower bound on aerosol radiative forcing by Bjorn Stevens of the Max Planck Institute for Meteorology in Hamburg, Germany and published in the American Meteorological Society journal.
The study finds that the effects of aerosols on cooling the climate are much smaller (in the direction of warming) than almost all of those used in data selected by IPCC scientists and promoted by policy-makers.
It may be too soon to speculate that data used by the IPCC was a product of “selection bias”, however the history of fraud revealed in the climate-gate scandal remains significant and such manipulation cannot be easily ruled-out.
Importantly, this new study could also challenge the expectations of the atmospheric manipulation industry promoted by atmospheric aerosol geoengineers, David Keith and Ken Caldeira.
To mitigate the effects of increased heating predicted by IPCC’s increasingly dubious models, Keith and Caldeira are proposing that jet aircraft be used to spray hazardous sulfuric acid aerosols into the atmosphere to reflect sunlight back into space.
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Rethinking the lower bound on aerosol radiative forcing
ABSTRACT
“Based on research showing that in the case of a strong aerosol forcing, this forcing establishes itself early in the historical record, a simple model is constructed to explore the implications of a strongly negative aerosol forcing on the early (pre 1950) part of the instrumental record. This model, which contains terms representing both aerosol-radiation and aerosol-cloud interactions well represents the known time history of aerosol radiative forcing, as well as the effect of the natural state on the strength of aerosol forcing. Model parameters, randomly drawn to represent uncertainty in understanding, demonstrates that a forcing more negative than −1.0 W m−2 is implausible, as it implies that none of the approximately 0.3 K temperature rise between 1850 and 1950 can be attributed to northern-hemispheric forcing. The individual terms of the model are interpreted in light of comprehensive modeling, constraints from observations, and physical understanding, to provide further support for the less negative ( −1.0 W m−2 ) lower bound. These findings suggest that aerosol radiative forcing is less negative and more certain than is commonly believed.”
* Corresponding author address: Bjorn Stevens, Max Planck Institute for Meteorology, Bundesstrasse 53, 20146 Hamburg, Germany. E-mail: bjorn.stevens@mpimet.mpg.de
Source Article from http://chemtrailsplanet.net/2015/03/21/new-aerosol-study-challenges-ipcc-excuse-for-failed-warming-predictions/
New Aerosol Study Challenges IPCC Excuse For Failed Warming Predictions
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