and the worlds roads of asphalt just happened there so automobiles could happen. I doubt the millions of roads and runways the world over have any lasting affect on helping the sun heat up the planet and the though what we put into the atmosphere couldn't possibly hold damaging portion suns rays in our atmosphere helping microwave the planet.
Now imagine the soot and smog generated by manufacturing plants, buildings that amass the planet, all this generated by man since the beginning of the industrial revolution, and all this has zero effect on climate the world over? It sounds like you'd shoot the messenger bringing you news you don't want to know.