Laughing at clowns

Thursday, 12 June 2014

Aerosols cause global warming!


This is what global temperatures would look like if the aerosol cooling effect dominated over CO2 warming. High aerosol production as a result of global industrialisation would have resulted in cooling temperatures, until attempts to deal with acid rain reduced aerosol emissions in the latter twentieth century.

In fact, temperatures look like this:


Climate science concluded in the late 1970s that CO2 warming would dominate aerosol cooling, so who would be foolish enough to imply the opposite?

A global warming bozo, of course:
A 5-10% decrease in solar energy received at the Earth's surface due to aerosols is huge [up to 136 W/m2], and far more than the ~0.5 W/m2 increase alleged due to man-made greenhouse gases since the beginning of the industrial revolution. A mere 1-2% change in global albedo from clouds/aerosols is sufficient to tip the balance between global warming or cooling.
The Hockey Schtick, referring to Global aerosol change in the last decade: An analysis based on MODIS data.

Global warming deniers love to talk about global cooling, and no warming for 10 years, but the paper the Hockey Schtick cites says aerosols have decreased over the last decade, so shouldn't temperatures have gone up?



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