An interesting angle on $4 per gallon for gas

Came across this link today on ClevelandGasPrices.com

http://www.foreignpolicy.com/story/cms.php?story_id=4333

The List: Five Reasons to Love $4 Gas

Sure, it’s ruining the global economy and making everyone miserable, but there’s an underappreciated upside to the high price of oil.

1. The mass transit boom
2. Lower obesity rates
3. Fewer accidents
4. Shorter commutes
5. The biofuels craze

For #3 the following stats were offered: "For instance, North Carolina saw just five traffic fatalities over Memorial Day weekend, down from 19 in 2007. Ohio experienced its lowest number of accidents in 38 years, and other states reported similar declines."

I think the top four reasons definitely have merit, particularly the health aspects related to fewer accidents and lower obesity rates. However, I am unsure about the current 'biofuels craze'. I am for renewable energy, if done properly, but I worry about the amount of energy used to create biofuels compared to the energy created by using those fuels.