Over a month ago Arnold Schwarzenegger announced that he was ready to start acting again. And now Hollywood has come a calling with a remake, reboot or some sort of spin-off of every great action movie he's ever been in.

Sure, on the surface, the proposed Running Man reboot sounds like a can't-miss proposition, a seamless blending of America's two current favorite pastimes: reality TV and recycling ideas from the '80s. There's just one problem.

When science fiction legend Arnold Schwarzenegger leaves office as California governor in 2011, he doesn't plan to return to acting. Instead, he wants to help lead the way on climate change. That's a darn shame, because we need Arnie's Heston-on-steroids style of acting more than we need his thoughts on global warming. …