To All Here,
To clarify I do not recall I ever said that we were not polluting our Home Planet. In fact I said the money being wasted on an insolvable would go a very long way to reducing pollution, cleaning contaminated drinking water, eliminating famines, cutting out slavery and wars.
That being said, the issue of Global Warming (GW) has been defined by the greenies as a matter of pollution by classifying the life giving gas, carbon dioxide, a pollutant.
We can not equate atmospheric pollution to the broader GW matter. On the one hand soot blocks sunlight. On the other hand aerosols cool the atmosphere. And on the third hand carbon dioxide warms the atmosphere. CFC's and ozone are an entirely different issue related to UV penetration.
The Earth's natural condition is warm as per here (again):
http://www.scotese.com/climate.htm Scroll down to graph.
We are exiting an historical cool period.
Alex here has defined this as Historic Climate Change - HCC.