I was talking to a pretty wise (in my opinion) individual the other day and we happened to talk about global warming. He said he believed global warming was indeed a reality... but not because of what the liberal left blames it on. In his opinion, global warming is occurring because of the increase in asphalt and concrete in the world. Never had thought about it, but that makes a lot of sense. In 15 years in my community, there have been MANY new shopping centers and subdivisions that have been built - and all of them have asphalt or concrete as part of the developments. Whenever I ride into town from the country, my outside temperature gauge on my truck climbs a few notches. In all the discussions about global warming, I've never heard this mentioned as a primary factor... not sure why.