...Summer Cloudiness Makes Cooling ...Winter Cloudiness Makes Warming

Cloudiness makes the difference between bleu open sky and grey closed darkness.

In summertime bleu open sky makes a heat wave.

In wintertime bleu open sky makes bitter cold.

The effect of cloudiness also depends on the latitude between +90N on arctic and -90S on antarctic but although solar irradiance on the both poles is quasi identical, the 2 poles are very different for cloudiness.

Also for average temperature there is a 30°K difference for north pole at 260°K warmer than south pole at 230°K.

How come ?

"Infra Red Earth Glow"=IREG=DQ/dt is reflected back to earth by cloudiness :

• x% cloudiness reflects x% of the IREG back down to earth

DSI="Direct Solar Irradiation" is reflected back to space by cloudiness :

• x% cloudiness reflects x% of the DSI back to space.

Over summer time DSI sends more heat (watt/m2) down to earth from space than IREG can send up from earth to space.

Over winter time DSI sends less heat (watt/m2) down to earth from space than IREG can send up from earth to space.

But :

• During NHS="Northern Hemisphere Summer" earth has SHW="Southern Hemisphere Winter"
• During NHW="Northern Hemisphere Winter" earth has SHS="Southern Hemisphere Summer"

So :

• In June cloudiness is cooling the NHS from North Pole to equator ?
• In June cloudiness is warming the SHW from South Pole to equator ?
• In December cloudiness is warming the NHW from North Pole to equator ?
• In December cloudiness is cooling the SHS from South Pole to equator ?

But apparently cloudiness is cooling 4°C more in January SHS than in July NHS every year.

Anyway

In climate science there are too many unanswered questions and too many unquestioned answers ...

But : Health & Climate & Energy are really very complicated and delicate politico-scientific stuff and also socio-economic stuff but we do the best we can and try to explain it as simple as possible but not simpler than that in the group :

CCR="Climate Change Revival.