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Sandwiches Top Cause of Global Warming

from New Atlas

Is the humble sandwich a climate change culprit?

by David Szondy

Sandwiches have a surprisingly large carbon footprintSandwiches have a surprisingly large carbon footprint(Credit: Taden1/Depositphotos)

Scientists at the University of Manchester have found a surprising global warming culprit – sandwiches. In the first study of its kind, the researchers carried out an in-depth audit of various sandwiches throughout their life cycles and found the triangular meals could be responsible for the equivalent annual carbon emissions of 8.6 million cars in Britain alone.

In 1762, or so the story goes, the fourth Earl of Sandwich rocked the culinary world when he couldn’t be bothered to leave the gambling table to eat and ordered the servants to just stick some meat between two slices of bread for him. Since then, the modern sandwich has become one of the most popular of food formats.

According to the British Sandwich Association (BSA), the United Kingdom spends £8 billion (US$11.3 billion) annually on 11.5 billion sandwiches, with half made at home and the other half bought at shops, supermarkets, kiosks, and service stations. To better understand the environmental impact of all these sarnies, the Manchester team looked at over 40 different sandwich types, recipes, and combinations as well as how they are made, packaged, transported, and stored. In addition, they considered the waste produced in making them, as well as the stale, rotten, or simply outdated sandwiches that are thrown away.

What the researchers found was that not all sandwiches are created equal and that some varieties have larger carbon footprints than others. The highest footprint was found in premade, prepackaged, all-day-breakfast sandwiches. These contain eggs, bacon, and sausage and are kept packaged and refrigerated until sold and eaten – all of which is estimated to add up to 1,441 g (3.18 lb) of carbon dioxide equivalent, or roughly the same as driving a car for 12 miles (19 km).

[ click to continue reading at New Atlas ]

 

Posted on March 4, 2018 by Editor

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