Sparky, there are natural swings in the earth's temperature caused by things like solar activity (sunspots, etc.), that are beyond my knowledge. The "global warming" that we are concerned with is the difference between what the temperature would be without our influence and what it is. In some cases the warming might, indeed, be beneficial. But, I believe that we are now in a relatively warm period that is being made warmer by the CO2 and other warming gases that we've put up there. My brother, who lives near the Canadian border, says he votes for global warming. In Florida....that's another story.
|