When our forefathers came to this country there was nothing said about global warming in fact they wouldn’t have known what global warming was so they would not have been concerned with the so called problem. But now the battle cry is spend the money to control global warming. There was also no cross country road system let alone the crisscrossing roads. There are many miles of roads in each city. Streets, subdivisions, curbs, gutters, sidewalks, parking lots, garages, buildings etc. How many acres of land have been allocated to the transportation system? God only knows the amount of blacktop and concrete devoted to the transportation system. Do you think your congressman or woman know the answer to that question? How about you’re Senators? Do they know? Maybe they will pass a bill requiring an investigation into just how much black top and concrete is used in the transportation system. Or perhaps and better yet, is to pass a non binding resolution on the subject so they can waste money on something that means nothing to anyone other than having something to do, like fiddle around. The black top and concrete spread all over these 50 states keep the rain from soaking into the ground. That causes run-off that has to go somewhere so the run-off does what the name implies and runs off. Where does it go? Where do you think it goes? Into the ditches where some of it sinks into the subsoil and the more blacktop and concrete that is laid on the ground the less space is available for it to be absorbed into the ground. The excess rain water continues to run off and flows into a ditch. If the adjacent area is relatively level more will sink into the ground but if the adjacent area is relatively high or hilly it seeks its own level and eventually becomes a creek. As you learned in school a creek will become a tributary to a stream that becomes a river; this becomes a tributary to a larger river and eventually it will end up emptying into the ocean. If sufficient acres are covered in blacktop or concrete how much run-off would end up in the ocean to raise the ocean level an inch? How much would it take to raise it a foot? How much would it take to raise it a yard? Etc. Look, I don’t know the answer to those questions. Personally I don’t think you or anyone else can answer these questions with the many variables that contribute to the correct answers. How does this relate to global warming? The blacktop and concrete become relatively hot when the sun strikes them and heat is reflected back toward the sun. The heat has no place to go but up and it will only go up to a certain level where it hangs. This can be seen when you enter a large city from a distance. There is a layer of dirt and grime that has been elevated by the hot air and it is such that it becomes noticeable in the form of SMOG. This becomes very noticeable when you fly into one of the larger cities. The only way to get rid of the SMOG is to have a good rain and thank God for the rain. How much of the blacktop and concrete plays a part in the warming of the temperature cannot be measured except in controlled circumstances and I can assure you that the circumstances of all the blacktop and concrete heat cannot be controlled by humans at this point in time. Are you by any chance getting the idea that maybe it is too late to worry about global warming?