Five disasters affecting gas prices
Find out what global events are causing the price spike at the pumps.
Global gasoline prices have been unusually volatile so far in 2011. Earlier in the year, geopolitical fears sent gas prices to their highest levels in the last three years, but more recently, prices have been on a downward path as demand has been crimped in the United States from a number of natural disasters. Here are five recent disasters that have been affecting gas prices lately and contributing to the unusual volatility.