Thursday, April 9, 2009

Environmental impact


I have removed the following paragraph as it is, as presently written, the sort of nonsense that gives the environmental movement a bad name.
"Car driving produces carbon dioxide. One gallon of petrol produces 2.26 kg of carbon. Garry Stokes from Joint Global Change Research Institute (Washington) has calculated that this equals one coal briquette thrown away every 400 meters. An average American drives 16 000 km a year which equals 40 000 briquettes. [4]"
"Car driving produces carbon dioxide." - true
"One gallon" - what kind of gallon?
"produces 2.26 kg of carbon" - no it doesn't. It produces some carbon in the form of soot, the rest is carbon compounds.
to quote a briquette conversion requires a standard briquette. There isn't one.
Malcolma (talk) 09:02, 10 December 2007 (UTC)
Thanks for your question Malcolma. The cars emit between 120-250 grams of carbon per kilometer. Thus, in a 10 km car ride the environmental load is in average carbon dioxide equivalent to 2 kg of pure carbon. The grill briquettes are close to 100 % of carbon. You can weight the 2 kg of grill briquettes and it will help You to visualize the environmental load of the drive. . The differences in the legislation and car models could be included in the article.
Original: Car driving produces carbon dioxide. One gallon petrol produces 2.26 kg carbon. Garry Stokes from Joint Global Change Research Institute Washington) has calculated that this equals one coal briquette thrown away every 400 meters. An average American drives 16 000 km a year which equals 40 000 briquettes. Imagine if we could see them all.[5] Watti Renew (talk) 19:56, 2 January 2008 (UTC)
It's worse than that though - we have cars that get 12mpg and cars that get 70mpg and we have electric cars and hydrogen cars and compressed-air cars that produce no carbon at all (although the power stations that ultimately power them might). No number you can come up with can possibly be correct even to within a factor of five. Let's simply note that for gasoline/petrol vehicles, the amount of CO2 produced is XX grams per liter (YY ounces per US gallon, ZZ grams per UK gallon) and that an AVERAGE gas/petrol car gets WW miles per gallon in 2008. Let's just do away with the silly analogies. We're an encyclopedia - not some pop-sci column in a kid's comic. SteveBaker (talk) 19:13, 14 January 2008 (UTC)

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