Yes-No Question

In the right-hand margin of this page at National Geographic previewing an article about global warning called "Signs from Earth," there's a one-question poll that asks one very simple, very open-ended question:

Are you willing to change your lifestyle to curb global warming?

With more than 20,000 responses, the results split right down the middle. I wouldn't want to read too much into that, since the question doesn't elaborate on what kind of lifestyle changes we're talking about. But still...