A butterfly flaps its wings in California? Tiny Canyon Lake (pop. 11K) notifies CalPERs it wants out of the pension plan, and says it's ready to pay a termination fee to do so. Behind the decision is CalPERs' recent approval of a 50% rise in employer contributions over the coming years. "How many cities might opt out," says a bankruptcy attorney. "The issue here for CalPERs is if Canyon Lake becomes a trend."