| CPC A01G 13/0275 (2013.01) [A01G 15/00 (2013.01); F24S 20/67 (2018.05); F24S 21/00 (2018.05); F24S 30/42 (2018.05); F24S 50/80 (2018.05)] | 30 Claims |

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1. A system for moderating energy absorption at the earth's surface, comprising:
a panel unit open to atmosphere that is configured to support at least one rotatable shaft;
a panel joined to or integrally formed with the shaft, said panel having a radiation reflective surface and a radiation emissive surface opposite the radiation reflective surface; and
means for rotating the shaft to place the panel selectively into each of a plurality of predetermined cardinal positions selected from the group consisting of: reflective orientation, emissive orientation and neutral orientation; and
at least one programmable controller configured to control the means for rotating the shaft (a) in response to localized data comprising weather data, air temperature at panel unit data, time of day at panel unit data, and/or orientation of the panel data, and (b) in response to satellite data on upwelling longwave radiation emissions; and
wherein air from outside the panel unit flows around the panel irrespective of panel orientation.
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