Earth Growing Due to Melting Glaciers
Dr. Shim writes "Some interesting (and rather frightening) news over at Space.com tells that the Earth is growing around the equator due to the fact that ice in the Antarctic (and other areas) is melting at an alarming rate."
sigh, so this is what it's like.
Well, I, for one, am so glad that finally the Bush administration is doing something about this.
...You mean they're not?!?
Karma: Chevy Kavalierma.
Maybe its just eating too many carbs.
It is by caffeine alone I set my mind in motion, It is by the beans of Java that thoughts acquire speed, The hands acqui
(i read TFA)
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Is it just me, or does anyone else get the feeling that this is a sensationalistic, alarmist write-up of a marginally interesting phenomena?
So, the earth has gained 0.3 percent around the equator, and the glaciers are still retreating. This is in my eyes neither "rather frightening" nor "an alarming rate".
Something to keep an eye on, certainly, and something to look into the reasons why, of course, but let's not press the big red panic button just yet, ok?
Scientists -- or as the case may be, reporters -- out for a quick 15 minutes of fame is my take on this "rather frightening" story.
"Total destruction the only solution" - Bob Marley
Ok, We've had Europe and lots of other land covered by glaciers only 10.000 years ago. The ice at the poles have melted quiet a few times in earths history. It's likely earth won't be doomed this time either.
Will this make days longer?
Just as figure ice skater retract their arms closer to their axis of rotation to go faster, and spread them out to slow down, won't this have the same effect on the earth's rotation? If so, it should then be measurable, proving or disproving the claim.
There is no need to use a SlashDot sig for SEO...
The earth is not fat, it's just big boned !
A bad analogy is like a leaky screwdriver.
All right Gaia, time to lay off the carbs.
Sounds like earth needs to take some Midol.
Me to Earth: Hey pudgy! Getting a little wide around the middle, eh? Too much fat? Too many carbs? Either way, too many calories. Maybe a no-sun diet? Ever think of that? Do us both a favor and don't have a coronary!
A firewall can not protect you from yourself. Turn off what you do not need. Do not use the firewall to do your work.
... when a planet stops being a young planet. It starts getting thick around the middle.
I've finally had it: until slashdot gets article moderation, I am not coming back.
The article you cite (which was published over a year ago) starts by saying, "Accelerated melting of Earth's glaciers in recent years has forced the planet to let a notch out of its belt as its midsection gains girth, according to a study released today."
The only source linked by the author of that article says, "They considered that ice melting at the poles and raising the overall sea level could be the culprit. Calculations showed, however, that 'you would have to drop a 10x10x5 kilometer cube of it into the ocean every year for the past five years.' Separate measurements of sea surface height from NASA's TOPEX/Poseidon mission don't support this scenario."
The article concludes by tempering its opening assertion. "Dickey cautioned that the study is not entirely conclusive, as the changes in sea level are measured in millimeters and represent a "daunting task" that requires numerous corrections to account for various known factors, such as natural short-term fluctuations."
So it is conceded that glacial melting cannot account for the few millimeter changes in sea level observed, and that they don't know enough to conclude that it is anything more than a natural short-term fluctuation. Once again, "journalists" are inflating the conclusions of scientists and alarming the public with no more justification than a desire to sell a weekly rag.
So tell us. Why are you bothering to bring up an article published more than a year ago as though it were breaking news?
ZZ
It's not "just him", either. Nice way to try to marginalize his viewpoint, which is, by the way, shared by more than just a "niche". There are a lot of scientists (and not just ordinary citizens) that are going "ok, slow down, it's not neccessarily a catastrophe". As many people have pointed out in the past, the Earth frequently goes through changes like this for reasons that are unknown, and that predate the industrial revolution. And lets face it, this whole piece was about pointing a finger at mankind's evil technological ways and saying "see what we're doing to the Earth?"
The Earth's sea level has risen and fallen over the centuries many times, without any input from man. The previous poster was just pointing out that this happens, and that the article might be just a tad sensationlistic in order to promote an agenda (and we know THAT nevers happens in science or anywhere else, right?).
If you agree with that agenda, fine, say so. But when you try to make opposing views look like fringe nuts because it suits your purposes, you just end up looking like an ass.
Life is hard, and the world is cruel
This is for all the people who are crying for action against this rise in sea level.
Without a better understanding of the full dynamics of the geology, climatology and biology involved in this thing, any attempts to reverse it might have unintended and unpredictable side effects.
Cut CO2 output? Sounds good but even though CO2 is the most common greenhouse gas, it's also one of the weakest. Lower levels of CO2 could also be problems for the plant biosphere being the CO2 breathing, carbon fixers that they are.
Cut CFC and PFC output? Also sounds nice since they are thousands of times more efficient at trapping heat. Is there any well agreed upon data that says that this melting is a result of man made greenhouse gasses and not something completely out of our control?
Rapid and drastic environmental changes can be caused by natural phenomena. Without a better understanding of the root cause of climate change, regulating our activity is at best a shot in the dark. At worst it could cause bigger problems.
Blaze a trail to the New World
Isn't that called "middle age"?
... to suggest the world call up Weight Watchers.
There, I did it. I'm done now.
Does a stem come out of the north pole. Is the South pole in a valley?
Where law ends, tyranny begins -- William Pitt
...in your pocket, or are you just happy to see me.
Again lets think about how history repeats itself, has the earth not been heating and cooling water for millenia?... Its going to happen folks, so lets not get up in arms about it, now if the earth were to start losing water (because we know the amount of water in/on/around the earth stays constant) then we would need to worry, but the icecaps are going to melt, but you know they're going to refreeze at some point (YEARS after we are forgotton)
Ah, I got it. The articles doesn't say that the bulge has risen by .3%. The equatorial bulge has always been about 0.3% How much has the bulge increased recently? They don't give figures. But they do say that gravitational field changes usually attributed to the "post-glacial rebound" (the geological adjustment to their being less weight at the poles since the end of the last ice age) is twice what it was in 1998.
That's scary. Why? Well, sea level has been rising for the last 10,000 years, since the end of the last ice age. That rise isn't notice during a human lifetime, of course. But now it appears that the rate of melting has doubled in just the last five years. Still not a lot, but we're pouring greenhouse gasses into the atmosphere faster than ever. Even if we could slow our rate of increase (and Dubya doesn't even want to do that), we'd still be looking at a big change in the ocean configuration.
Which could lead, ironically enough, to another ice age. If that happens the "junk science" pundits will doubtless insist that the whole greenhouse effect was just a myth. Oh well, I think I'll go fix a cold drink.
In NEVADA!
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I for one would be very happy to have waterfront property finally!!!
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My days really are getting longer!
The Earth isn't exactly bulging, but rather the oceans near the equator. The oceans bulge because of the tidal force exerted by the Moon and, to a lesser extent, the Sun. Hence if there is an increase in water volume to the oceans due to melting glaciers, then the bulge near the equator will grow.
This means the equatorial bulge gets larger as well. This bulge causes the precession of the Earth, and this in turn the period in which the magnetic poles turn around the geographic poles. In the history of the Earth, ice caps have grown and shrank many times. Have geologists taken this into account when they calculated the place of the magnetic poles in the past, relevant for many geologic phenomona? Or have they always applied actualism, e.g. assumed the precession of the earth is static?
From the most excellent Manifold trilogy by Steven Baxter:
Say you have some algae growing on the surface of your pond. It doubles in size every day. It will take 30 days to cover the pond.
When the pond is half covered, you decide to start to do something about it...
...but, when the pond is half covered, it's the 29th day, and you're out of time.
You cannot apply a technological solution to a sociological problem. (Edwards' Law)
Think of the earth as a computer.
On this computer, there are many files (matter) which are used by programs (natural processes) which all work under the operating system (natural "laws"). We (humans) were clueless newbies who started putzing around on this computer. In the process we have edited files (built things). Now when one of the programs reads a file we have edited it does something different than it did before. Quite often we don't like the results.
Now that we have become fairly good computer users, we have realized that we have messed up our computer. Although we know what most of the programs do, we still don't know HOW most of the programs work (we're not programmers yet). Since we didn't make a backup before we started messing around (we were newbies then, remember?) we have very little knowledge of what our computer was like before we started changing things.
Sadly, we don't know any computer geeks who can come fix our computer, so we have to deal with the problem ourselves. We could try to fix the files we've edited, but since we don't understand the programs we don't know exactly what our changes will do. They might even make things worse. We could try not to mess things up any more while we study programming, but our computer might stop working before we learn enough. So we have to do what we can to keep our computer running by making only small changes to files while we study. In the process we'll probably make some mistakes, but hopefully we won't cause a BSOD.
If God had had a computer it would have taken him 7 months to create the earth...if he even bothered to do it at all.
Learn to swim
Learn to swim
Learn to swim...
Yes, sounds like a good addition for Despair.com. Perhaps if you find a picture to go with it (a meteorite, maybe with dinosaurs perhaps) you could have it posted to the demotivators
Didn't Lex do that in one of the Superman movies?
"Sic Semper Tyrannosaurus Rex."
this is the first thing that happens before catastrophic crustal displacement
Say, last March?
Sorry, but it doesn't matter here if the sea has gone up and down many times. And which scientists have you (actually) been talking to? If the sea goes up enough now it's a catastrophe - for man. We have a lot of very expensive coastal real estate a lot of people are going to be bent on keeping dry, if possible. And we are taxing the environment as a whole pretty heavily to feed 6 billion people. Large climate changes will mean a) that we probably won't be able to do all 6 billion for a bit, or b) we will have to make very large (and thus given the scale, very 'quick') and therefore very expensive adjustments on getting the food from somewhere new on the globe as arable land areas shift around. Whole civilizations have come into being (China) in order to deal with the flooding of one river (Yellow River). Whole civilizations, and much smaller ones than ours, have collapsed when their food production did. And you think having the ocean flood is not the most important news you've recently heard? Exactly how are you defining "fringe"?
We should not joke or laugh at this. The rate of change is what is alarming, not the change. 3/4 of the world's population lives w/in 100 miles of the ocean. All this land will be reclaimed by the ocean. A 0.3 degree change in temperature is HUGE, HUGE, HUGE. In one century, we can change the temp 30 degrees. The Athabasca glacier in Canada has retreated 1/4-1/2 of a mile since the 1860's. There is a visitor center standing where the glacier was. You won't laugh once this affects you.
... probably think its just you. If they have to move in with their mother in law on higher ground, they probably consider the situation worse than frightening. Also anyone who wonders whether the mass and energy transfers involved might affect the seismic stability around the Pacific rim might also suspect its just you. If you depend on an accurate geoid for your work and the darn thing keeps changing, well it might not be frightening, but it could be irritating.
------ The only greater hazard to your liberty than n politicians is n+1 politicians.
...that this might have something to do with not needing the leap second for the past few years? The increase in size around the equator would definitely affect the earth's motion.
Un-news