Waiting for Green Has Gas-Conscious Seeing Red

Though their safety value in heavy traffic isn't disputed, some Californians are starting to see left-turn arrows as a drag on ever-pricier gas and an avoidable threat to the environment, the Riverside Press-Enterprise reports. The California Energy Commission estimates that idling for 2 minutes (often a needless waste of time, some say) uses the same amount of fuel as driving 1 mile. (More traffic stories.)