This week, the United States Supreme Court delivered a decisive blow to Mayor Michael Bloomberg's plan for New York City taxicabs to go green, to switch to hybrid cars. This all started a few years ago when Bloomberg announced a plan to mandate that the famous New York City taxi fleet go all-hybrid. The classic Crown Victoria gets about 12 miles per gallon, whereas a hybrid taxi gets 30 miles per gallon. Quite a difference! So this is great for the environment.