Unexpectedly!

Good news, environmentalists! The amount of CO2 being released into the air by the U.S. is at its lowest level in 20 years. I'm sure all the scientists are staying "I told you so" right now.

Many of the world’s leading climate scientists didn’t see the drop coming, in large part because it happened as a result of market forces rather than direct government action against carbon dioxide, a greenhouse gas that traps heat in the atmosphere.

Or not. These scientists seem like the folks at CIA, who didn't know the Berlin Wall was coming down until bricks started hitting them in the head.

As Glenn Reynolds would say: Unexpectedly!