Via our friends over at Ideal Bite, some bicycle (click here for my Huffington Post article on Top 10 Commuter Bikes) basics:

• Every gallon of gasoline we burn creates about 20 pounds of climate-change-causing CO2, making commuting by bike way eco-friendly.
• Casual biking burns about 173 calories per hour.
• A typical U.S. family spends nearly $8,000 per year operating a car, while a bike might cost $50 for an annual tune-up.