The 'Inconvenient Truth' is only part of the issue

Parents are good at one thing. No, it isn't at raising children--that's something that some parents are good at, but not all. All parents are good at arguing.

They practice every day on each other, whether they argue about money, sex or (if there's nothing to fight about) toothbrushes. They practice further at work, stores and bowling alleys.

And all of this practice has led to the single greatest fight in history: if a film about global warming is real.

When asked if they believed global warming itself is real, the parents responded, "Global warming? Who cares. Al Gore has no place in our schools."