30 May '13, 3pm

Ever wonder how 6lbs of gasoline becomes 19lbs of CO2

At TerraPass, as the summer travel season gets underway, we notice an uptick in interest around the carbon footprint of travel. We thought we would take a moment to revisit this blog post about how 6lbs of gasoline turns into 19lbs of CO2 The curious (or suspicious-minded) among you have occasionally wondered about our carbon footprint calculator’s claim that one gallon of gas turns into about twenty pounds of carbon dioxide exhaust. Let’s walk through the math. Short answer: When you burn something, it might feel like you’re turning it into lightness, air, nothingness. But what you’re really doing is simultaneously vaporizing it and chemically bonding it with oxygen in the air. It’s the weight of that oxygen that makes up the difference. Carbon dioxide — or CO2 — is one carbon atom joined to two oxygen atoms. Carbon dioxide . Oxygen is a little bit heavier than carbon, so...

Full article: http://terrapass.com/uncategorized/oldie-goodie-6lbs-gaso...

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