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Simple
The earth is and has been heated by the sun. Reflective heating exists and has existed for all time.
In the summer you climb into a dark car and its like an oven. A lighter color car a little less.
Now, drive around and check out all the huge shopping malls that have sprung up in the last 40 - 50 years.
Where there used to be huge tracs of open land with trees and grass with land that could absorb the rain that fell and put it into wells and underground streams there is now acres and acres of not only buildings over that land but huge parking lots keeping the earth from absorbing the rain and cooling things down.
Those humungous parking lots, all nice black tar to absorb the heat and pass it back up into the air aren't helping either. Walk across a field in your bare feet and then walk across a parking lot barefooted. I doubt it.
Where does all that heat produced by the black parking lots go? Heat rises! No, it's not going to happen in a week but over a period of 20, 30, 40 years, all that extra heat produced has to have an effect on the atmosphere.
Just a thought
Sarge
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