Climate change is related to the politics, economy, science and technology and military affairs of all countries in the world. To the people, carbon emissions are related to the standard of living. The more carbon emissions, the more comfortable and convenient life. However, the oil exploitation will be harder and harder, the cost of mining will increase year by year, and the energy resources will gradually become expensive. As a result, many countries begin to attach importance to energy-saving technologies. On the other hand, each of us is well aware of the climate and environmental changes caused by carbon emissions. From the point of view of science and technology, economy and military competition among nations, carbon emissions can also play a role in inhibiting the development of rivals.
British scientists released a set of data showing that every year the British eat sandwiches, planting, processing, transportation and other aspects of accumulated carbon emissions, equivalent to 8.6 million cars a year of carbon emissions. Now that carbon emissions have been linked to whether we can eat sandwiches, this has aroused the concern of many British people. Fortunately, the study did not completely deny the sandwich, just hope that the British choose some healthier, less carbon less sandwiches.
The study estimated the carbon footprint of homemade sandwiches and commercial sandwiches. Common British sandwiches contain eggs, bacon and sausages, all of which are scary foods. The most carbon-coated sandwiches each equate to 1441 grams of carbon dioxide, equivalent to the carbon dioxide emitted by a car traveling 23 kilometers.
Carbon emissions include the production, packaging, lost food part and the entire industrial chain, including refrigeration, transportation, marketing and other links.
According to the data from the British Sandwich Association, the British eat 11.5 billion sandwiches each year. The population of Britain in 2016 is about 65 million people, bringing together a total of 176 sandwiches per person per year. 11.5 billion sandwiches will produce about 10.47 million tons of carbon dioxide, equivalent to 8.6 million cars a year of carbon emissions.
Carbon-rich sandwiches generally contain pork (bacon, ham, sausage), cheese, tomato and shrimp. However, the study found that home-made Ham Cheese Sandwich has the lowest carbon footprint. Why sandwich with ham and cheese lowest carbon footprint?
The study found that the most common household sandwich, the sand mark of each sandwich is generally 399 grams to 843 grams. The sandwich products generally in 739 grams ~ 1441 grams.
The carbon footprint of the sandwich comes mainly from agricultural production and raw material processing. The first two items of sandwiches accounted for 37% to 67% of the total and 8.5% of the carbon traces in the packaging segment. The study found that sandwiches, also made from the same ingredients, produce 50% less carbon in the home than they do in stores.
The study also believes that sandwich marks will also affect the shelf life of the sandwich, in general, businesses in order to minimize the risk of food poisoning customers, the best food dates are marked very conservative. This is totally a waste.