Global warming

Tomorrow's edition of The Herald-Dispatch will have a column by George Will about global warming, now known as climate change.

Everyone, it seems, talks about global warming as though it is a confirmed fact, but I wonder about it. Everyone looks for a single cause for global warming, and every cause they find is related to human activity. There's no doubt that human activities can cause some climate change in local areas, but globally?

What about volcanic eruptions, variations in the amount of heat produced by the sun, the precession of the earth's rotation, ocean currents and who knows how many other natural causes that are beyond man's control?

And is a little bit of warming necessarily a bad thing?

Don't put me down on one side or the other. As I live in West Virginia, any of these comments could be dismissed as someone afraid of hurting the coal industry, but that's not the case. I'd just like some answers.

I guess I'll have to find last week's Time magazine and read it. Even after that, I'll still be a skeptic and waiting for more answers.