Countermeasures against Freon gas are delayed ①

<The ozone layer measures, not proceed as slow....>

In addition to the commercial refrigerators of food companies, supermarkets, and restaurants, CFC (chlorofluorocarbons), which is used as a cooling catalyst for air conditioning facilities in buildings, does not advance recovery. It is said that CFC has a number of hundred to 100,000 times more greenhouse gases than carbon dioxide. At the 24th annual Meeting of the United Nations Framework Convention on Climate Change (COP24), the International framework of global warming, the "Paris agreement" guideline, has been closed again in the Japan.

What is Freon gas? In the mid-1970s, it was investigated that the artificially produced material freon gases destroyed the ozone layer. The ozone layer is present in the stratosphere of 20 ~ 30km above ground. The sun plays a role like a curtain to cut ultraviolet rays contained in sunlight. The ultraviolet rays are harmful, and when it is hit directly, skin cancer and cataracts, blindness, it has been found that it tends to be susceptible to viral diseases such as AIDS due to immunodegradation. Furthermore, it also affects the gene (DNA) of the biological cells. At present, the number of people who take skin cancer and cataracts in the world has increased, and Japan has increased by seven times. Twenty years later, the ozone layer decreased 2/3. It is said to be the worst. On the other hand, it has been pointed out that the ozone layer destruction is one of the big environmental problems in global warming. CFC gas, which is the ringleader of the ozone layer destruction, was used in air conditioners, refrigerators, sprays, etc., and was released into the atmosphere in large quantities. Since Freon gases have a property that is difficult to decompose in the vicinity of the ground, when transported to the stratosphere by atmospheric flow, Freon is decomposed by the strong sun ultraviolet rays, and chlorine is generated. This chlorine acts as a catalyst and destroys ozone one after another. By the way, there are some other substances that destroy the ozone layer besides CFC. The ozone layer has also been destroyed by bromine released by substances such as furlongs used in extinguishing agents.