The most effective solution seems me, the control of the amount of the sun light reaching to the Earth.
She would suffice us, the possibility of the control over several percentages of light reaching to the surface of the earth, and we would be he will get up to control the temperature in certain range on our planet.
The idea is not new, and principle the working this is simple, we place the suitable quantity of the satellites witch mirrors which they deflect the sun light on the orbit..
To reduce the temperature , we place them in line among earth and sun. That is why they reduce the quantity of energy reaching to the planet, additionally we can direct the sun light in the direction of satellites which can processed them on electric energy.
To raise temperature. We place them perpendicularly to earth – Sun line and we reflect the light in to Planet.
When the control of the temperature is not necessary. We place them perpendicularly to earth – Sun line and we reflect the the light in the direction of satellites which can processed them on electric energy.
This energy, would can by use on the orbit, or send on Earth.
The basic problem of the realization of this idea, is not lack of suitable technologies. Only cost of transportation on the orbit which as I checked recently he carried out „4106 $ the per of the Kg for LEO” for chemical rockets.
Anyway production of such satellites on the earth and sending their on the orbit he is illogical.
Cheaper and more logical will be send infrastructures on the orbit thanks to which one could produce them on the orbit from materials gain over from asteroids or moon.
One that is all moves to costs, can obviously lower the cost of transportation on the orbit to near utilization of the radical conception of the nuclear drive. I read that the price of transportation was on the orbit according to theoretical calculations, 120 $ the per of the Kg or cheaper.
On the end, have we to answer the question if we can let not undertake workings, aiming to the settlement of the temperature on our planet ?
I will add that in the past the average temperature on the earth was in the range from + 27 to -9 the Celsius degrees.