Quote Originally Posted by khronik
First, I'd like to clear up the meaning of "global warming". Global warming is definitely occurring. The question is, is it mostly "natural global warming" or "anthropogenic global warming"? Now, global temperatures have varied a lot over human history. There were glaciers around the Great Lakes as recent ago as 5000 BC. The "Little Ice Age" caused all sorts of crop failures in Europe during the middle ages. Since the 19th century, the world has been getting warmer, but any number of things could be causing it.
Bingo! The earth has gone thru MANY cycles of heating and cooling in its 4bn year history. Hell, we're STILL coming out of the last ice age - the earth has been "warming" for the last 10,000 years. Are man made GH gasses expediting the process? Its a possibility and probable to SOME degree - but the extent is not exactly known. There are SO MANY factors, both terrestrial and extra-terrestrial. There are even factors outside of our solar system that can and do influence our climate!

Lastly, I'm all for bikini's in January