Ozone Hole Getting Smaller 352
snark42 writes "According to Reuters and some other sources the hole in the ozone layer shrank 20% this year to a mere 9 million square miles. Of course scientists caution this would have to continue for at least a couple more years to be a trend or anything to get excited about."
hrmmm (Score:5, Interesting)
Re:hrmmm (Score:3, Interesting)
The earth has a tremendous capacity to heal itself, every lightning strike adds ozone to the atmosphere, but the problem is that it takes many years for the newly created ozone to reach the ozone layer.
Humans have the ability to fuck up the environment pretty bad, but we can also do a lot to help it.
Re:hrmmm (Score:5, Informative)
Re:hrmmm (Score:2)
Why should we put scrubbers on volcanoes? (Score:3, Informative)
Re:hrmmm (Score:4, Interesting)
I don't remember the exact numbers unfortunately, but I took a class on techtonics and volcanos in college and you would be surprised how bad for the ozone volcanos are. From what I remember the prof told us that a major volcanic event does more damage to the ozone than all of the chemicals that we humans have put up there in the past century.
I wish I could remember the numbers, or find a site but no such luck.
Re:hrmmm (Score:3, Insightful)
Re:hrmmm (Score:2)
Please provide references to the connection between the Ozone layer and volcanoes. Here are some to the contrary:
http://www.abc.net.au/science/news/enviro/EnviroR e publish_496920.htm [abc.net.au]
http://www.sustainer.org/dhm_archive/search.php?di splay_article=vn504ozoneed [sustainer.org]
Re:hrmmm (Score:5, Insightful)
First, if you're going to be a smart-ass perhaps you should get your facts right. Volcanos don't spew CFCs. They spew other chemicals (mostly sulphur compounds) which destroy the ozone layer.
You're argumenting that since volcanos damage the ozone layer, it's OK if we humans contribute further to the destruction.
That's stupid. We can't do anything about the former, we can certainly do something about the latter. Why shouldn't we? UV radiation has been an increasing problem in the polar regions.
I live in Sweden. The skin cancer rate here has tripled since the 50's.
By the same rationale, we shouldn't bother about nuclear waste either. After all, there's natural background radiation out there which causes cancer too.
Re:hrmmm (Score:3, Informative)
yes true enough but the acuracy of detecting skin cancer has tripled since the 50' (actuelly probably alot more) this is like the breast cancer debate yes the rate for breast cancer has increased but if you adjust for an aging population with better detection methodology you find that it has actually decreased and those that get cancer are more likely to survive it these days....no direct skin cancer increases have been atributed to the oznone layer dep
in the balance (Score:4, Informative)
Re:hrmmm (Score:5, Funny)
I plan to fill all volcano craters with empty MacDonalds packets so that when a volcano starts to get hot the package melts and blocks the crater with molten plastic!!!
(well if you can talk bollox, so can I)
Re:hrmmm (Score:3, Informative)
And since they were producing them a lot it has a big impact.
Jeroen
Re:hrmmm (Score:3, Interesting)
Re:hrmmm (Score:5, Informative)
Anyway, here's a generic rebuttal to the ozone naysayers [wunderground.com].
Any scientific issue, no matter how rooted in facts it is, always has naysayers. Even the round earth theory had considerable opposition. For someone to dispute accepted scientific theory requires extraordinary evidence, and frankly this james p. hogan doesn't provide much in the way of actual evidence.
Oh, and in general, paying attention to whether a text contains logical fallacies [datanation.com] is very helpful too in weeding out truth from falsehood.
Re:hrmmm (Score:3, Insightful)
In fact, your reference is full of logical fallacies as well, including Prejudicial Language, False Dilemma, Appeal to Consquences, Popularity, and doesn't address the points brought up by people that disagree, but attacks HOW those that disagree have voiced their opposition. It hadrly speaks to the merits of the arguments of the ozone "naysayers" at all.
Re:hrmmm (Score:3, Funny)
You get sunburned, so their must be a problem with the ozone layer.
ahhh (Score:2, Insightful)
Re:ahhh (Score:5, Informative)
An example, google for more.
THE PROCESS TO phase out the use of CFCs in polyurethanes from the 1,000 or more foam factories in China has started to accelerate.
The phase-out is being undertaken in accordance with the Montreal Protocol, which established a timetable for developing countries to phase out the use of CFCs by the year 2010. With financial support from the Multilateral Fund supplied by the United Nations, it is estimated that about 10% of Chinese foam processors have now substituted CFCs with other foaming agents, such as pentane, C[O.sub.2] and water. Companies that have completed
Re:ahhh (Score:2)
Re:ahhh (Score:4, Informative)
We did? Who's "we"? The US stopped in 1996, but China is still cranking out tons of the stuff, and doesn't plan to have it phased out for TEN MORE YEARS. Furthermore, it's not the production of CFC's that release them into the atmosphere-- it's the venting of it from leaks in CFC-using equipment . It'll take at LEAST 10 years before we see a significant reduction in CFC venting due to equipment replacement.
Re:ahhh (Score:2)
The Montreal Protocol banning CFCs was not based on science. It was based on a media scare campaign initiated by people who had agendas. There's no evidence that CFCs were really bad, nor that my life is being saved without them. Essentially the full scienti
Re:ahhh (Score:3, Insightful)
Re:ahhh (Score:3, Insightful)
We don't know jack shit about the cycles in our atmosphere, stating that there is a correlation shows you're not dealing with this objectively.
It's the same as with all these people claiming catastrophic temperature changes in the near future.
Yes, they might happen, but face it temperature on this planet doesn't have a baseline, if you check the
Re:ahhh (Score:3, Funny)
Re:ahhh (Score:5, Insightful)
Yes, but science has greatly increased the lifespan and quality of life of the average person. Unless you don't consider that worthwhile...
It's like the housewife who goes to the mall to buy several pairs of shoes. "I saved fifteen dollars!" "Yes dear, but you spent $70."
If she was going to buy the shoes regardless if they were on sale, then she did save $15.
Re:ahhh (Score:3)
Re:ahhh (Score:3, Informative)
And let's not forget the biggest reason for that improvement is the massive reduction in infant mortality rates, more than adults actually living longer on average.
Re:hrmmm (Score:3, Interesting)
Hope this isn't used as an excuse... (Score:5, Insightful)
I realize the above accords don't directly affect the ozone layer, but, ask anyone on the street - the hole in the Ozone layer and the "Greenhouse Effect" are the same thing right? Maybe the hole lets more heat in or something...
It is a sad state of affairs when one feels so cynical, that the first thing that occurs when a hint of good news comes along, is, how will those in power exploit this?
Re:Hope this isn't used as an excuse... (Score:3, Funny)
Kyoto isn't ment to work (Score:2, Insightful)
Re:Kyoto isn't ment to work (Score:2, Insightful)
intentsity (Score:2, Flamebait)
Re:Kyoto isn't ment to work (Score:3, Insightful)
The kyoto agreement is NOT about screwing the US, it's about trying to protect the environment for our species. The restrictions will affect the european countries as well, and if it affects the US more, that's only because per capita it is a far worse polluter.
Yes, it is a great shame that China et al. are exempt and no, it is not a perfect treaty. But it's a start, and to suggest
Re:Kyoto isn't ment to work (Score:5, Insightful)
Please tell me how exempting the fastest growing, most poluting economy on the face of the planet will make one bit of difference.
Progress that's not all-encompassing still continues to be progress.
~jeff
Re:Kyoto isn't meant to work (Score:3, Informative)
I stand corrected, I was just wandering around trying to find a reference to to worlds worst polluter and had great difficulty finding it. This material just isn't that commonly available - people not interested in it?
After great effort, I found this [usatoday.com] which contains the phrase "China is the second-biggest producer of greenhouse gases, after the United States".
This [globalissues.org] is a
Re:Kyoto isn't meant to work (Score:2)
Re:Kyoto isn't meant to work (Score:3, Interesting)
Re:Kyoto isn't ment to work (Score:2)
In the first scenario, at least some difference is being made, assuming that the non-participants act as though the Accord does not exist. In the second, we have all the problems from the (orginal) non-participants, plus problems from the nations that were going to participate but now won't.
Seems to me that all things being equal, the first scenario can only b
Re:Kyoto isn't ment to work (Score:2)
This is the first I've heard of this. Sources? Reasoning? Why would all the other developed countries hurt themselves by signing it?
Re:Kyoto isn't ment to work (Score:5, Informative)
The fact that Bush is scared just shows how much of a plan he has for economic growth.
Re:Kyoto isn't ment to work (Score:2)
Not that there's any excuse for being exempt from the Kyoto agreement.
~phil
Re:Kyoto isn't ment to work (Score:2)
It's very bad, very very bad. We are talking about dumping totally unprocessed high level toxic was directly into rivers and streams by large factories.
Re:Kyoto isn't ment to work (Score:2)
Then again, with a population like that, I suppose the government doesn't really care about a few thousand poisonings, especially since they can make the media shut up about it.
I wonder how that one will pan out then. Not mu
Re:Kyoto isn't ment to work (Score:2)
Then again, with a population like that, I suppose the government doesn't really care about a few thousand poisonings, especially since they can make the media shut up about it.
I wonder if Slashdot is banned in China? This discussion could be percieved as propaganda against the state there. :/
China has the worst pollution on earth right now (Score:2)
China has not had this improvement. Beijing still relies on coal burned in individual coal stoves [pnl.gov] for domestic space heat, and some cities emit so much soot that the lack of light reduces agricultural production d
Re:Kyoto isn't ment to work (Score:2)
Re:Kyoto isn't ment to work (Score:2)
China wants as many factories as it can get because control of said factories will allow them to exhibit a large amount of control over the world economy.
Re:Kyoto isn't ment to work (Score:2)
Perhaps not if you're a full believer of the Kyoto treaty being Gods gift to mankind.
Only it isn't so. AS explained earlier, Kyoto is supposed to redistribute wealth from "rich" countries to "poorer" countries on a psudo-scientific basis.
That is, you're using lies to transfer values. Now, explain to me how this is unexcusable to say NO THANKS to ?
Re:Kyoto isn't ment to work (Score:2)
On the one hand people whine that reducing CO2 emissions will hurt the highly developed economies of the rich countries, on the other hand the same people argue
Re:Kyoto isn't ment to work (Score:5, Insightful)
Of course wikipedia tells [wikipedia.org] us that China comes second.
Re:Kyoto isn't ment to work (Score:2)
Co2 emissions isn't pollution. Carbon gas emissions are a completely natural part of organic life and use of energy to further human goals and allow humans to achieve prosperity.
Claiming that Co2 emmissions are pollution only shows that you have jumped on the pseudo-scientific (and pseudo-environmentalist) bandwagon. Kyoto my be seen as an environmentally good initiative, but
Re:Kyoto isn't ment to work (Score:2)
While CO2 emissions are not pollution in itself, emissions big enough to change the CO2 levels in atmosphere certainly are. Many chemical substances' emissions are not pollutions in themselves, they become pollutions when they are large enough to change the environment to the detriment of living species. In certain circumstances,
Re:Kyoto isn't ment to work (Score:2)
Of course Kyoto is totally inadequate. Doing nothing will however be a lot better, proven time and again to be the best method to let confusing things go away - at least off the White House Radar...
Anybody can spell hurricane?
Re:Hope this isn't used as an excuse... (Score:5, Informative)
Re:Hope this isn't used as an excuse... (Score:3, Informative)
a. Gore did sign the protocol (which was symbolic only).
b. And that both Clinton and Bush decided to not pass the treaty on to the senate, citing the Byrd-Hagel resolution as strongly suggestive that the Senate would not ratify it.
As for this:
Re:Hope this isn't used as an excuse... (Score:4, Interesting)
That's probably because I'm contrary and because I think environmentalists are insane.
Relationship between global warming and ozone (Score:3, Interesting)
News for Nerds. Stuff that Matters. (Score:2, Insightful)
Move along, nothing to see here.
Pardon my ignorance. (Score:4, Interesting)
Why can't we 'reseed' the ozone layer? We can make ozone in a lab, so why don't we get some high flying aircraft and strap some ozone filled bottles to the fuselage and start spraying? It'd be like dusting crops only a lot different.
Although, it is good news that the hole is smaller.
Re:Pardon my ignorance. (Score:3, Interesting)
Re:Pardon my ignorance. (Score:2)
Re:Pardon my ignorance. (Score:4, Interesting)
The ENTIRE United States is only ~6 million sq. mi., including Alaska, just for reference. The first logistical problem that you have is, How do you manufacture that much ozone?
However, we do know that the ozone layer naturally replenishes itself. So, if we had anything to do with the size of the hole (which is doubtful), then all we need to do is to reduce the number of harmful emissions. Which is a good idea, regardless.
Re:Pardon my ignorance. (Score:5, Informative)
Re:Pardon my ignorance. (Score:2)
Re:Pardon my ignorance. (Score:3, Informative)
Re:Pardon my ignorance. (Score:3, Informative)
No it doesn't. Ozone is ozone. It's a simple molecule. O3.. three oxygen atoms. If it's got three oxygen atoms, it's ozone. There no difference. Identical molecules are not distinguishable. They have no difference in properties.
You are drawing ridiculous conclusions from the facts here. The facts are that there i
Re:Pardon my ignorance. (Score:5, Informative)
Ozone (O3) is basically created when UV light hits O2 molecules. When there's less ozone to block the UV rays, it stands to reason that more ozone would be created because more UV radiation is getting down to the level where the atmospher contains more O2. Even those that believe the hole is caused by human activity don't describe it as a problem caused by lack of ozone production; rather, it's theorized that atmospheric chlorine is breaking the ozone down faster than the UV + O2 interaction can replace it. Suggesting we "spray ozone" completely fails to appreciate the scale at which this is happening. We're talking BILLIONS OF TONS of ozone. It's like suggesting that we fight a 100,000 acre wind-driven wildfire with bucket brigades and garden hoses.
Batman Returns, and Linux World Domination (Score:2, Funny)
"Stop global warming. Start global cooling. Make the world a colder place!"
Maybe that's what's happening. The Penguin is taking over the world. Yay. We'll have Linux world domination yet!
Science news dilemma (Score:5, Insightful)
Of course this could be nothing to do with anything - and simply be an anomoly, a measuring error, a rogue reading, or true. Until everyone has a basic degree of scientific understanding this kind of news will hit the headlines and be presented as a Good Thing. Which is isn't - its neither good not bad.
A bit like the medical researcher on the radio every few weeks being introduced as talking about a 'newfound cure for cancer' and saying 'this is certainly an exciting development' being asked 'so when will it actually be used to cure cancer' and having to say 'well... possibly never,
Re:Science news dilemma (Score:2)
We don't want it to close completely.
What? (Score:2)
Re:What? (Score:2, Funny)
Re:What? (Score:5, Informative)
Because ozone is created by the interaction of O2 and UV radiation. It's not some finite mass of rare elements. It's O3. The reason it's "coming back" is that human activity has a negligible effect upon it. The "hole" is a cyclical phenomenon more closely related to solar activity than anything else.
Re:What? (Score:2)
"Our environment" is messed by many different things, all leading to different problems. Greenhouse gases are just one aspect of the problem, besides waste (nuclear, landfill, toxic, etc), exhaust fumes, clearcutting of forests, you name it. Amongst all this pollution, the reduction of ozone layer depleting substances has been reasonably successful. Perhaps we are seeing the results, though it is much too early to tell.
Besides, has our en
According to Reuters (Score:4, Informative)
Re:According to Reuters (Score:2)
This has already been suggested... (Score:5, Insightful)
The Earth is fairly resillient, much more so than we humans are. The Earth will survive just about anything we do to it, but we are at risk. The argument that there are no (or minimal) dangers ignores the fact that skin cancer exists. It ignores the fact that there is a hole in the ozone. The Montreal Protocol has been a major step forward to eliminating/minimizing those chemicals that we know deplete the Ozone layer.
The other thing that may contribute to the Ozone layer growing back would be global warming, as the ozone depletion effect requires very cold temperatures to do the spectacular damage it has done to the pole. (see Univeristy of Cambridge [cam.ac.uk].)
Some interesting facts [epa.gov]:
InnerWeb
Aquanet from 1980s (Score:4, Funny)
We all know what this means! (Score:4, Funny)
Ok, on to the next conspiracy...
It is a trend... (Score:3, Interesting)
You see! (Score:2, Funny)
If he had signed the Kyoto Treaty, how much bigger would the ozone be now? I shudder to think about it...
Four more years!
That was fast considering that... (Score:3, Funny)
Industry used chlorine; bromine would be worse (Score:2, Interesting)
http://www.iiasa.ac.at/Admin/INF/lectures/Koopmans
Simple chemistry, unknown at the time industry chose to use chlorine, marginally cheaper, over bromine, in freons etc.
Bromine in those applications would've wiped the upper ozone la
Long predicted (Score:3, Funny)
Scientific Bias (Score:5, Insightful)
The hole gets 2% bigger, scientists freak out, instantly blaming pollution and saying we need to change. Then, when the hole shrinks by 20%, "scientists caution this would have to continue for at least a couple more years to be a trend or anything to get excited about."
Is it just me, or does it seem these scientists are protraying the facts in such a way to continue their funding?
Re:Scientific Bias (Score:3, Insightful)
It just reminds us that everyone has an agenda. Science used to be unbiased, but thanks to the "crying wolf" over the environment, we can't trust that anymore.
Re:Scientific Bias .... MOD Parent up (Score:3, Interesting)
Maybe what it all means is that we still have very little understanding of our environment and that any statements to the contrary are really politically motivated.
Re:Scientific Bias (Score:3, Insightful)
look at the ecomonic side (Score:2)
Only 9 million! (Score:2)
Wow, that's only one and a half times as big as the entire USA (including Alaska). Almost nothing!
Ice shelves (Score:5, Insightful)
Why Is It? (Score:3, Insightful)
Isn't it funny that when there is good news about the climate, "scientists" tells us that we shouldn't "get excited about it," yet when there is apparently bad news, these same scientists demands that we must act "before it's too late."
Re:drop in pollution levels? (Score:5, Informative)
Re:The Return of Cheap Freon! (Score:4, Interesting)
DuPont dupes (Score:2)
You're both dupes of conspiracy nuts (Score:3, Informative)
Of course, you could always go back to using sulfur dioxide or ammonia as the working fluid in your refrigerator (yeah, right); CFC's were used because they didn't kill people when they leaked. Some European hardware, not being constrained by ill-considered safety regulations as we are in the USA, uses isobutane to this very day.
Re:Why is it getting smaller though. (Score:3, Informative)
Re:Of course (Score:2)
Funny, that.