Eating 1 Jin of beef is equivalent to driving 702 miles. In terms of global warming, the greenhouse gas emission from beef production is three times that from chicken with the same weight and 57 times that from beans. Producing 1 beef that ordinary Americans need in a year will emit greenhouse gases equivalent to 1 car driving more than 29,002 miles.

In fact, every food we consume, including vegetables and fruits, has hidden environmental costs: transportation and fluorine-containing food, the use of tartar in agriculture, and methane emitted by animals and plants will increase the greenhouse gas content in the atmosphere.

As for the neglected air-conditioning pollution, China's meteorological department has been good at detecting the dust and bacteria in air-conditioning systems in more than 60 cities across the country, and found that 47. 1 1% of air-conditioning ducts are seriously polluted, 46. 17% are moderately polluted, and only 6. 12% are qualified. Among them, if you expect to appear in the air-conditioned room for a long time, you will be tired, easy to catch a cold, and your friend will have a fever: respiratory diseases; Allergic pneumonia, skin allergy, etc. These are all symptoms of air conditioning pollution.

Obesity exacerbates global warming. According to the research of environmentalists, obesity not only threatens personal health, but also destroys the ecological environment of the earth. Researchers say that the increase in food longevity is an important factor leading to global warming. The more people eat, the greater the negative impact on global climate change. Therefore, obese people are an important culprit in aggravating global warming.

More than 654.38 billion adults worldwide are overweight. Experts say that if 654.38 billion obese people can lose weight successfully, the global annual carbon dioxide emissions will be reduced by 654.38 billion tons.