In 1985, scientists from the British Antarctic Survey found a giant hole in the ozone layer of Earth's atmosphere over the South Pole. This discovery prompted a largely successful international effort to ban CFCs, the chemicals largely responsible for man-made thinning of the ozone layer.
Unfortunately, a new analysis from Scientific Committee on Antarctic Research (SCAR) suggests that stopping ozone depletion may actually increase global warming and speed up sea level rise. This discovery pits two important environmental missions against each other, while highlighting the complexity of our effect on the planet.
SCAR's findings indicate that the extra radiation allowed through the atmosphere by the depleted ozone above Antarctica created wind patterns that cooled the eastern, more densely ice-covered, section of the continent. Those weather patterns partly protected Antarctic ice from the ravages of global warming.
Now, as the hole in the atmosphere heals, those wind patterns will shift, fully subjecting the Antarctic ice to the effects climate change. According to SCAR, that means a rise in sea levels up to 4.6 feet greater than earlier predictions.
Although often confused in the mind of the public, and in news reports about the environment, climate change and ozone depletion are largely unrelated phenomena.
Atmospheric ozone, a chemical consisting of three oxygen molecules, protects animal life from cancer-causing UV radiation (hence the worry over its disappearance). Man-made chemicals like certain aerosol sprays and refrigerator coolants chemically react with ozone, creating new compounds that don't block out the radiation. While some of those chemicals are also greenhouse gases, their contribution to global warming is insignificant when compared with other greenhouse gases like carbon dioxide, methane, and water vapor.
The campaign to eliminate ozone depleting chemicals, starting with the 1978 ban enacted by the US, Canada, and Norway, and the subsequent 1989 Montreal Protocol banning ozone-depleting chemicals internationally, were some of the biggest triumphs of the environmental movement in the last century. Today, both acts serve as inspirations and templates for subsequent treaties and legislation that attempt to regulate greenhouse gas emissions.
The SCAR report's revelation that fixing one pressing environmental problem may accelerate another dangerous problem puts efforts to prevent rapid environmental change in a bit of a pickle. As the leaders of the world's nations prepare to hash out future environmental agreements, revelations like this can't help make me wonder how today's solutions might become tomorrows concerns.
Or perhaps revelations like this make one wonder if it isn't all just a scam:
I'm neither surprised nor encouraged by PopSci's failure to cover the Climategate fiasco in the AGW community. Personal threats, data manipulation, evasion of Freedom of Informatoin requests and conspiracy to hide results or otherwise obstruct scientific advancement; these are the actions of "scientist" who bring us "global warming" theory.
Since PopSci won't report it, I invite any interested to visit www.wattsupwiththat.com, where all of the emails and code are available for review. When you see what's uncovered, you'll think twice about reading the drivel of the AGW propagandists. It's a pity that a publication such as PopSci swaddles itself in the mantle of science and objectivity when it is clear that it has become nothing but a soap box for a certain political meme.
Does this strike anyone else as humorous?
Stewie it is time to give it up. You've been had. Just like everyone else in the "Global Warming" camp. Your cult has lost and it is time to accept that we evolve.
The idiotic idea of if we didn't repair the ozone hole we would have saved earth from global warming, I fail to see the logic in that. The ozone hole was a bigger threat than global warming, and a much easier fix. Ask anyone living on Mars or the south pole what unfiltered UV's will do to you......
So the remedy for most of the developed world, who live in the northern hemisphere, is too cool the earth from global warming by releasing a huge amount of CFCs back into the atmosphere -- We then can burn all the carbon we want.
Saving the world this way from global warming means eventually most of all the animal life in the southern hemisphere is wiped out by high amounts of UV coming through the atmosphere...........
ya thats true rlb2, only animals lives in the south.
Ha, MaxHubert, being from your point of view south includes a lot of real estate.
I was trying to include everything living on the surface of the earth in the southern hemisphere which also would include humans and plant life, the fish would have a natural barrier, H2O, from the UV's...
So what do we get out of all this? While Popsci tries to remain nutral on there articles they lean toward global warming by not posting the oppisition. And we no longer have any data to compare any temperature trends because they where all discarded because they where showing a cooling trend.
Just a point that is usually missed. "Analysis" does not mean proven. What it means is that they took some data, made some assumptions and crunched the numbers to produce a plausible explanation.
As is all cases, computer simulations are not proof. Instead, computer simulations are hypothesis which have to be tested by looking for phenomena they did not predict.
I would also point that ozone levels over the antarctic have long tracked solar magnetosphere activity just as closely as they have tracked CFC levels. The thinning of ozone there in the late 90's tracked with the unusually high peek of magnetosphere activity and the thickening since has track the fall to the near complete absence of magnetosphere activity in the last two years.
In any case, given the great respect and positive peer review that was accorded the incredibly dubious CRU software and the data it generated, I see no reason to accept any similar analysis unless they make both their source data and their software code publicly available.
No Secret Science! Show me the data!
Ah, all is vanity. Well, we in the southern U.S. have been living with the results of a couple of well-intentioned scientific boondogles for some time now, kudzu and killer bees. No one has figured out yet what to do about kudzu and the aggresiveness of the killer bees seems to be slowly being bred out of them (no thanks to any scientist). But those were just minor, regional experiments gone bad. Wait till we start to geoengineer the whole climate. Whooeee!
I wouldn't classify the threat of global warming as a conspiracy, however that being said some models have been blindly followed by a large chunk of scientist before -- we should look at the facts.
Here is a graph of the 11 year solar cycle, sunspot cycle, when the sun is the most active over the last three cycles.
If the sun is the culprit in the last peak cycle activity, between 2000 and 2003 looks less than the last two cycles yet we have been told the temperatures around the world went up. The data extrapolated from that is from earth based and satellite observations. For the novice it would be very difficult to interpret just the meaning of the raw data. It is important to note that during non peak solar activity there could be corona mass ejections outside the normal from the sun that causes communication and other problems here on earth.
Most of all the scientist agree that there was some sort of increase in temperature and glacier ice melts around the world that was above normal up to the beginning of this year which if continued would be devastating to our planet. If you can get two scientist to agree to something that is a challenge but to get this big of numbers from most of them from all over the world, that is spooky. Scientist like to prove someone wrong by throwing hypothesis and theories at each other, so right now I believe that it is true, we have a problem with global warming.
Human activity is causing most of this if you just look at how much methane that has seeped into the atmosphere. Methane is 23 times more powerful global warming gas than CO2. Believe it or not, cows exhaust is one of the biggest contributors.
For me I think if humans caused it, humans should be able to fix it by reducing their contribution. However I personally not worried about global warming, I am more worried about global freezing. I am afraid that whatever is heating up the earth surface would cause the magma from inside the earth to rise up more toward the surface causing a super volcano's like at Yellowstone to erupt. If it erupted it would through the world into another Ice age. Yellowstone has recently reported a high increase in earthquakes, a precursor to an eruption. That is how I think mother nature keeps things in check, the warmer it gets, she turns the air conditioner on to cool things down a bit or kills the ones causing it in the first place.
Over production of Dinosaurs methane exhaust, huge cows, might have been the first casualty that messed with mother nature by dumping their global warming gases into the atmosphere.
Humans are next........
The earth has been around for what 4.7 billion years. Science has looked at core samples showing cycles of climate changes over those billions of years it's natural. I doubt we humans are contributing as much to climate change as they think we are, it's been going on far longer than we've been around.
We should just reduce our carbon footprint from here on out and let Mother Nature do the rest. I think she's more than capable. Think The Day After Tomorrow lol.
I get the feeling that any of these planet-saving ideas, like controlling the weather for instance or creating clouds/storms like in that Bill Gates article, might do more harm than good. 2012-like...wait, thatd be AWESOME, nvm
Contradiction of the century! if so why not sky tower to ventilates out CO2 into the space! but years later, "oh no, we are killing our forest!
"The earth has been around for what 4.7 billion years. Science has looked at core samples showing cycles of climate changes over those billions of years it's natural. I doubt we humans are contributing as much to climate change as they think we are, it's been going on far longer than we've been around."
--------------> I'm sure u hv not being traveling much!
Things like this makes me feel all warm and happy inside. Stuff changes get over it. Global warming is real it is happening we wont stop it so lets just move on and prepare for how the world is going to be. We'll have a happy face, a happy smile, a happy point of view. You make me some methane and I'll make some for you. Global warming is not evil its yummy.
XD hahahahahahahahaha lol lol lol
omg this is so ironic hahahahahahahahahahahaha
I don't travel much at all, only put a little over 2000 miles on my car this year. I use mass transit. Sure the electric has to come from somewhere. Regardless, science has shown global warming, ice ages, drastic changes in O3 and CO2 levels. There really isn't much out of the ordinary. It's nature at work. We are making a big deal out of it because we're afraid we wont make it and the earth will be inhabitable. Well we will make it just fine, we are a people with a master in adapting to extreme cold, extreme heat, space, or where ever else you can think of. The only thing we should be concerned with is resources.
In response to the global warming deniers, I'd like to post this link from NASA's astrobiology website, which I peruse pretty frequenty (yeah, climate change matters when considering issues of planetary habitability, whether this planet or any other):
Of course, NASA could be part of the cover-up, too, just like they covered up the reality of the face on Mars, the fact that the earth is hollow, and the faking of the Apollo moon landings ;)
What's strange is the Concept of Global Warming has been very much presented by media and newspapers, as a separate phenomenon, from the Ozone Hole, occurring over the last few decades. HOWEVER, A FEW MONTHS AGO I FIRST HEARD THAT A GROUP OF SCIENTISTS BELIEVE THAT GLOBAL WARMING IS BEING CAUSED BY OUR EFFORTS TO CORRECT THE OZONE LAYER. This makes complete sense because our global heating of the EARTH has mainly occurred in the past 15 years, which coincides with the relative increase in OZONE loss I think that, MOST LIKELY, A CONTINGENCY OF SCIENTISTS DON'T WANT TO ADMIT THIS. Afterall in school, we were taught that the OZONE HOLE PROBLEM WAS CORRECTED IN THE 1990's. Then, coincidentally, at this same time, the EARTH'S TEMPERATURES STARTED TO INCREASE ON YEARLY AVERAGES. It seems that some scientists, don't want to admit, the original problem has not been solved, and that GLOBAL WARMING is some unrelated problem.
Hmm go figure. You close the glass top on the green house and it holds more heat. Never would have guessed this in the 80's... while I was 8-9 years old. Always wondered what mom meant by shut the darn door your letting all the cool air in. The cool air in this case might be the less ozone protected area letting in coolness from space.
I too wish Popular Science was more impartial in their reporting! Look at the shameless partiality they've show towards the Heliocentric Theory of the Solar System, not to mention the Round Earth Theory.
Don't even get me started on Evolution!
tedtr, do you realise what you just stated there?
Firstly you state that scientists believe that global warming is caused by our efforts to correct the ozone layer (this is being corrected through a ban on cfc's thereby increasing ozone). Then you state that the global heating of the Earth coincides with an increase in ozone loss (decrease in ozone).
Well, tedtr, you are contradicting yourself.
Do you believe that global warming is due, at least in part, to our efforts to repair the ozone layer (increase ozone) or to our efforts to ignore the evidence of cfc's harmful properties and do nothing at all (decrease ozone)? Well, global warming cannot be due to both an increase and a decrease in ozone.
I think you have very little idea about this subject. Also, you state that in school you were taught that the ozone hole problem was corrected in the 1990's. I refuse to beleive that. I believe it's more likely that you were told that the problem was being corrected (therefore not corrected, but correcting).
"This makes complete sense"? Mmmm...not a phrase likely to be used by a scientist. Thread carefully in future fellow being.
Also, I refuse to believe that you "heard that a group of scientists believe that global warming is being caused by our efforts to correct the ozone layer".
What you may have heard is that a group of scientists believe that our efforts to correct the ozone layer are contributing to global warming.
The key word being "contributing". Slight difference!
"Global warming is being caused by our efforts to correct the ozone layer"? Give me strength!!!
Oh yes..Warmth...yeap I think it is time I take my self to the mental Ward..and ask for them to run some tests..I think I am lose-ing my mind...I see white stuff out side...may be I am triping on some C.i.A. or K.G.B. Cold War use of LSD..
These people are Nuts...the earth warms and cools..gee..the day has Just pasted cults have been formed around for eions over these thoughts December 21 The Solstice the shortest day of the year...The earth has many times changed its course and in some views of science minded people as like my self those kinds of changes are more likly the answer to Warming and or Cooling trends and there is not one dam thing anything one person can do to Stop it.
What is sad in my opinion is that people don't realize yet the full consequences of our actions. We hear everywhere about this global warning, that it will be irreversible, that it will affect the future generations etc., we speak about it at dinner or ot our jobs, but we do'nt do nothing to stop it. What we really care is about our selfish needs: food, job, sex, a new car. And as long as these are satisified, we don't realy care about nothing else. This is typical for us, the high regarded, too highly regarded, human-ape.
This is so ironic!
I have a huge question to ask of you. I have been searching high and low for this one answer. If mankind were to die off and no longers exist, that gives the earth itself time to repair itself from what humans have actually done.
Now every answer I have gotten from people is extinction, reincarnation, transformation, evolution, regenerate, aftermath, rahabilitate, rejuvenate, reflourish etc....All of these wordS have their own meaning and they can mean multiple things. The word I am looking for means strictly one thing. (questions below)
Those are not what i am looking for. For every definiton there is a one word answer. WHAT IS THE ONE WORD FOR WHEN THE EARTH IS ABLE TO REFLOURISH ITSELF?
I have heard this one word before and just can't think of it. PLEASE help me with this. And I am not looking for extinction.
Basically pciture this. No humans exist anymore (thats where everyone gets extinction from) and the earth gives itself time to grow vines to cover buildings, grass grows through pavement, animals and bugs go through their life cycles, no vehicles to polute air, waters go back to un poluted, clean, clear and pure again.
Please help me, much appreciated!!!!