CFC or chlorofluorocarbon are a family of compounds of chlorine,fluorin and carbon.It is man made material and causes a lot of problem for earth.Stratospheric ozone depletion the biggest problem in these days has made by CFC.Although man has understood how much make a big mistake and struggle challenging whit that but it is too late.Today Goverments make a new plan toghether for controling the emission of CFC.
The 5main CFCs include CFC-11(trichlorofluoromethane-CFCL3) , CFC-12(Dichloro-diflouromethane-CF2CL2) , CFC-113(trichloro-trifluoroethane-C2F3CL3) , CFC-114(Dichloro-tetrflouroethane-C2F4CL2) , CFC-115(chloropentafluoroethane-C2F2CL).
This material used for cooling the refrigeration and air conditioners,or as solvents in cleaners,in the production of foam and propellants in aerosols.No new CFCs use in developed country.
CFCs are several times heavier than the air but winds mix them above the stratospheric.UV hits the CFCs and causes one Chlorine atom break away.Then Ozone consists three oxygen,because of hits,oxygen of chlorine monoxide will mix with them so free chlorine can destroy ozon layer.
For solution this problem in 1995 ,for example ,production of new CFCs will be limited to 65 % of 1986 production,and a tax $2.65 per pound will be imposed.By 1999 ,production will be down to 15 % with a tax of $4.90 per pound.
About 4 percent of the total worldwide production of CFCs is used in refrigatorated transpotation industry.The major use of CFCs in refrigerated transportation is for insulation production-about 4,000 tons annually.maintenance of refrigerated transportation equipment requires 930 tons annually,and charging new refrigerated equipment uses 765 tons.charginng trucks and trailers uses 1.200 tons of CFCs annually.
I wish we could control this fault and reform this damage.If we continue this way,we will destroy the ozone.Nowadays this hole causes big changes in climate.We touch warm weather in the winter,or see snowing in the spring.
I guess it is a vicious cycle. The production of refrigerators and air-conditioner will continue to rise so long there is demand. And when this equipment is put into the market, more CFCs are release. So what do we do.
ReplyDeleteShould we switch to natural ventilation, fans or humidity cooler? And refrain from using the AC. It is understandable if AC is for comfort cooling, but to set the temp to lowest, and seeing ourselves wearing jacket in office or waking up in the morning bathing hot water is simply wasteful. Likewise, overuse of aerosol sprays should be sparringly use.
The fact is, whatever damage done cannot be undone, only hope is to practice moderation and hope the ozone hole will self-heal.
we should find another mechanism that can replace cfc in air condioner and refrgeratr for the sake of our new generation life...maybe impossible but everything can be possible if we determined to do that..
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