Why will it take years for the ozone layer to recover, even though the use of CFCs has declined significant?

also,



How could environmental problems in developing countries that result from global climate change affect the economics of developed countries, such as the United States?Why will it take years for the ozone layer to recover, even though the use of CFCs has declined significant?The problem with CFCs was that they were like little chlorine rockets. Chlorine containing molecules normally get absorbed by rain and returned to the earth's surface. CFCs are different, however, and they protect the chlorine from rain until it reaches the ozone layer. There, the chlorine is slowly released over time, and it's the chlorine that destroys ozone molecules.



That's why it took some time after the banning of CFCs for the ozone hole to start repairing. The CFCs still took time to float up to the stratosphere, so CFCs in the stratosphere continued to increase after the ban for a few years. It takes even more time for the CFCs to release their chlorine atoms, so the amount of CFCs in the ozone layer didn't go to zero immediately, but is decreasing.



(Note: Even now, long after the ban, CFCs continue to be studied experimentally. Between the continuing laboratory studies of CFCs, and the observed timing of the opening then closing of the ozone hole matching the proliferation then banning of CFCs, scientists are very confident that CFCs are the cause of ozone depletion.)



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It's often argued that tropical countries have more to lose to global warming: intensity of tropical storms, spread of tropical disease carriers like mosquitoes. Some go so far as to say that global warming is good for those of us in cooler climates.



But countries in temperate regions face problems, too. Milder winters might seem nice for us, but they would also be a welcome mat for invasive species, weeds, and pests. More intense heat waves in summer would create a human health hazard. And of course, rising sea levels affect all coastal and island communities, regardless of wealth or latitude.Why will it take years for the ozone layer to recover, even though the use of CFCs has declined significant?
CFCs have been released for nearly 80 years. It takes months to years for them to start showing up in quantity, it takes decades for them to stop leaking from the ground / junkyards / landfills, we are still to this day stripping them from aquifers and venting them to the atmosphere so we have water to drink. Then it takes Nature a long time both to strip them of their chlorine payload, and let those compounds eventually drift down out of the intense radiation of the ozone layer. There is nothing in all this that suddenly "turns off" except a decision to stop using them "from now on". Everything else is subject to the usual "exponential decay", with fat time constants.

Most of our (non-grain) food is imported into the USA, and grown in less-well-developed countries. Wars and disease also can start in less developed countries. We are on spaceship Earth, and we also suffer the fall of even a single sparrow, whether we are aware of it or not.Why will it take years for the ozone layer to recover, even though the use of CFCs has declined significant?The ozone hole comes and goes and probably has been for all time. The hole has closed and opened several times since the 1970's when it was first observed. CFC levels have been rising all this time. Even though they have been banned in many places, CFC levels are still increasing since CFC's manufactured in the past are still in use and continue to leak. There is no correlation between CFC levels and the ozone hole. Only a theory that they MIGHT be harmful.



Whether CO2 is causing climate change is conjecture also. There is no correlation between CO2 and recent changes in climate. The planet has cooled since the 1998 peak while CO2 levels have been rising. Again we have a theory that is not being born out by reality.Why will it take years for the ozone layer to recover, even though the use of CFCs has declined significant?
ozone layer(O3) can depleted naturally by a radiation of sunlight. it will dissociated to oxygen gas(O2) and oxygen atom(O).

The uses of CFCs actually not declined. it continously emit to environment. furthermore, 1 chlorine atom can break 1000 of ozone.

the life of chlorine are very long until 100 years. this is why it can slow down the formation of ozone.

for a developed country, this depletion of ozone will lead to global warming.

if the ozone cannot protect the earth from the short wavelength to pass through, human can be affected too. then the economically due to health problem.Why will it take years for the ozone layer to recover, even though the use of CFCs has declined significant?The ozone was never affected. That was a scam. The study behind it was funded by DuPont which was the biggest maker of freon. The freon patent was about to expire. So the created the scam so that people had to use DuPonts new freon that was protected by a new patent.

http://www.sweetliberty.org/issues/envir鈥?/a>Why will it take years for the ozone layer to recover, even though the use of CFCs has declined significant?
It took years for the ozone layer to be developed, do you really think it can patch it's self up in 10 minutes?