Hi All
They write that 'sunlight scattering would also be ineffective in
addressing polar climate emergencies not least because it cannot
directly affect temperature during the polar winter.' They have got in a
muddle.
During winter the poles are radiating heat out to deep space at about
200 watts per square metre. It is being replaced by heat in ocean
currents and winds. Any mechanism which intercepts some of this heat
anywhere along the path from the equator, will cool the poles.
This is shown at in figure 2 of doi:10.1088/1748-9326/4/4/045112
However Jon-Egil Kristjansson has shown that aerosol over the poles in
winter works in the wrong way because it can act as a blanket and
reflect back some of the outgoing radiation.
Stephen
Emeritus Professor of Engineering Design. School of Engineering.
University of Edinburgh. Mayfield Road. Edinburgh EH9 3JL. Scotland.
[email protected] Tel +44 (0)131 650 5704 Cell 07795 203 195
WWW.see.ed.ac.uk/~shs U-tube Jamie Taylor Power for Change
On 04/07/2014 10:58, Andrew Lockley wrote:
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