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The Daily Signal
Go Green With
Gasoline If You’re Going to Consume That Sandwich
David Kreutzer
January 30, 2018
A new study shows that if you aren’t ready to go vegan to save the
world, then you should quit riding your bike and take a car.
An article in the Journal of Insufferable Busybodies (official title:
Sustainable Production and Consumption) calculates the carbon footprint
for a variety of sandwiches. These carbon footprints include carbon
dioxide emissions from things such as farming, transportation, and
refrigeration.
In the article, researchers at the University of Manchester offer
helpful tips on Earth-friendly sandwich making. Among them: avoid using
lettuce, tomatoes, cheese, and meat.
If you’re like me, though, every sandwich you’ve eaten since middle
school includes at least two of those ingredients.
However, don’t despair, you still can alter your behavior to reduce
your carbon footprint. In particular, make sure you don’t ride a bike
when you could drive a car.
How’s that? Well, the people at Phys.org thought the sandwich-climate
topic was important enough to get access to the full text of the
original article.
They pass on this particularly interesting tidbit: A bacon, sausage,
and egg sandwich (the whole Hampton Inn breakfast buffet in one tidy
package) has a carbon footprint “equivalent to CO2 emissions from
driving a car for 12 miles.”
Driving a car uses energy that comes from gasoline. Riding a bike uses
energy that comes from the bicyclist’s food. Both sources of energy
have carbon footprints.
We are told carbon dioxide emissions from the life-cycle process of
producing a sandwich is equal to that of driving a car 12 miles. The
question, then, is how far will the calories in that sandwich take you
on a bike?
It isn’t clear that anybody in the U.S. has the courage to sell the
cardiologist’s delight described above, which means the total caloric
content of the sandwich doesn’t show up on the first page of a Google
search. Fortunately, my calorie-counting app (no evidence of use since
2015, hmm … ) can do the job:
English muffin
150 calories
2 slices of bacon
87
2.5 ounces pork sausage 250
egg 72
Total 559 calories
According to this calculator, a 180-pound bicycle rider going 15 mph
for 51 minutes will travel 11.9 miles, but expend 729 calories.
So, this bacon, sausage, and egg sandwich doesn’t have enough food
energy to power the cyclist for the full 12 miles.
The bicyclist would need to eat 1.3 sandwiches to go 12 miles. That is,
the carbon dioxide footprint of riding a sandwich-fueled bike would be
30 percent higher than driving a car.
Since it takes more energy to move bigger people, the imperative to
drive instead of ride is even greater for those who shop in the Big
& Tall section.
A 222-pound blogger, for instance, would burn 899 calories for the same
time and distance, requiring 60 percent more sandwich and, therefore,
60 percent more carbon dioxide from riding a bike than driving a car.
Of course, smaller people need less energy to propel themselves on a
bike. The break-even weight for the ride-or-drive decision is around
140 pounds. Going more slowly helps, too.
If carbon dioxide-induced climate change is the existential threat some
claim, and if people are still going to eat sandwiches that might
include sausage, bacon, egg, tomato, lettuce, meat, or cheese, perhaps
we need a prohibition against bike riding. Just sayin’.
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