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  (Source: sciencedaily.com)
Sea ice extent in the Arctic fell to 483,000 square km (186,000 square miles) on August 13, a new record

The Arctic Ocean is feeling hot, hot, hot, says new report released by the U.S. National Snow and Ice Data Center. 
 
According to the report, sea ice extent in the Arctic dropped to a record low on August 13, and will continue dropping to new record lows by the end of the month. 
 
Sea ice extent, which measures the amount of sea ice remaining in the ocean, fell to 483,000 square km (186,000 square miles) on August 13. This was a dip from the previous record low on the same date back in 2007. 
 
But that's not the end of it. The Arctic sea ice is expected to continue melting through mid to late September, but more record lows have been predicted for the end of this month.
 
"A new daily record would be likely by the end of August," said Ted Scambos, lead scientist at the U.S. National Snow and Ice Data Center. "Chances are it will cross the previous record while we are still in ice retreat."
 
The news of a new record hasn't surprised many among the environmental community. This may be because the Arctic neared record lows last year, according to climate physics Professor Seymour Laxon from University College London. It almost seemed inevitable that this would happen at some point. "Rapid" melting occurred in June of this year as well with 100,000 square km melting daily.
 
However, Laxon worries that this rate of melting will adjust the prediction for an ice-free Arctic in summer. Previous reports estimated that the Arctic will have an ice-free summer in 2100 based on melting at that time, but when the 2007 low hit, this estimate was brought to the 2030-2040 range. Scientists are now concerned that this year's lows will bring that date even closer, which is problematic because the melting of sea ice means warming of the oceans. Sea ice keeps the Earth's temperature controlled.  
 
Global warming always seems to be a hot topic (pun intended). A recent controversial report released by James Hansen at NASA's Goddard Institute for Space Studies claimed that global warming has caused hotter summers since 1980, but many question the merit of his opinions based on his position on climate change. 
 

Source: BBC News



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take this with a grain of salt
By muhahaaha on 8/21/2012 8:49:44 PM , Rating: 2
Climate is cyclic. There are periods of extreme cold and periods of extreme heat.

Although we are jamming a lot more CO2 into the atmosphere now than we were a century ago, it is still a tiny fraction of the amount of CO2 that was present millions of years ago. I tried to find some supporting evidence and this is the best source:

http://www.grida.no/images/series/vg-climate/large...

If you have the inclination to view the graph, pay particular attention to the cyclical nature, and how we're pretty much normal for our place in the cycle. Global warming due to CO2 emissions cannot be proven by any ability we currently possess. There is no reason to believe that some kind of catastrophic change will happen any time soon. If the graph is anything close to accurate, we're about to head into the next ice age.

GWT is mostly a political game that politicians are playing to advance their own financial gains.

Mother Nature has an amazing ability to fix the damage that anything has caused her.




By muhahaaha on 8/21/2012 9:52:48 PM , Rating: 2
Maybe I misspoke about us heading to another ice-age, that graph was dealing with thousands of years, not millions. But definitely another cooling trend seems likely. It was from the 50's, but most of the data I found from more recent times seems artificially inflated.

I know my post will be sent to 0 Kelvin for not supporting all the doomsday global warming predictors, but whatever.

An asteroid will probably hit us long before we ruin the atmosphere. Call Bruce Willis if you care.


RE: take this with a grain of salt
By nick2000 on 8/21/2012 10:13:44 PM , Rating: 2
The graph stops in 1950 so we really cannot conclude much. However, the high temperature point present in 1950 had already been there longer than in the past.
Put another way, this graph does not disprove global warming. We need the same graph extended with new data.


RE: take this with a grain of salt
By thewah on 8/21/2012 10:24:54 PM , Rating: 2
http://www.esrl.noaa.gov/gmd/ccgg/trends/

Current CO2 levels are well off that chart you posted. We are outside your "cycles".


RE: take this with a grain of salt
By muhahaaha on 8/21/2012 10:46:16 PM , Rating: 2
As I said, finding modern data that isn't questionable is difficult. Scientists are pandering to politics. We all know that these NOAA studies are flawed (sensors malfunctioning, being next to a heat source, fill in the blank).

I don't want to get into a rant here but the CO2 levels right now are just below 400ppm. That's pretty normal.

http://ilovecarbondioxide.com/p/about-co2.html

We were at 2500 ppm in the Carboniferous period ( hint, when trees began developing ).

Want to reduce the CO2 in our atmosphere? Don't call a scientist or politician... just plant a tree.


By muhahaaha on 8/21/2012 10:51:31 PM , Rating: 2
My dad is a nuclear physicist, and he is brilliant, but he is a GWT advocate. He taught me everything I know.

I blew through HS and College and never studied. Graduated, and am now trying to explain how much of a dumb donkey butt he is. LOL.


RE: take this with a grain of salt
By ArcliteHawaii on 8/22/12, Rating: -1
By Dr of crap on 8/22/2012 8:24:24 AM , Rating: 2
Hey less population means MORE food for us survivers!
I'm guessing I'm going to be here - you?
Because by the sounds of it this will happen soon. Right?

We are breathing now and not dying. So when is your model going to start happening?? Exactly WE don't know! Don't even know IF it will. Might have a volcano explosion that will do more damage than your CO2 prediction.

Me - I'm burning as much oil and gas as I can to ROB my grand kids of whatever I had !!! Having a barbeque with all the food not being eaten by the rest of the population! Come on over!


RE: take this with a grain of salt
By JediJeb on 8/22/2012 2:15:02 PM , Rating: 3
quote:
Second, 400ppm is normal FOR THE FCKING DINOSAURS, not for humans. And CO2 2500ppm?? Dude, are you kidding me? That was 600 fcking million years ago! You couldn't even breathe the air that long ago. It was toxic to modern animals. Animals of the of the quaternary period evolved with 250-300 PPM CO2. Boost it above that and you're putting entire ecosystems at risk.


So the past 3 billion years of Earth's history means nothing, only the past few thousand years where the climate has been optimum for humans is what we should judge all climate by?

Maybe the current climate and CO2 levels are just a fluke and humans are thriving during a climate anomaly which will soon end and destroy our entire civilization through purely natural events. To rant on about how higher CO2 levels were only good for dinosaurs and forest of the past and should never happen again is the most arrogant of human beliefs that the entire world's climate and environment should revolve around what is good for humans.

quote:
First of all, scientists are NOT pandering to politics.


That is false on so many levels, and not only in the climate field. I work in an environmental testing laboratory and I can tell you that most of the "science" put out that we have to follow for analysis of the environment for pollution is purely political driven. There are so many newer and better ways to test water, soil and air for pollution and contamination, but we are only allowed to use techniques that are often 20 years old simply because the EPA has not "approved" the newer testing and forces us to use the old ways.

If you want to be successful in science you have to play the politics.

quote:
Will humanity survive? Probably. Will billions of people die in the process? Probably. I'm all for controlling the population, but it seems to me that it should be done through birth control not through massive widespread deaths.


Population is not a problem like many want to play it up to be either. I did the math in a post here before but the short and simple is that with current global population you can give every man, woman, and child on the planet something like a 2000 square foot house and fit all those houses on the land mass of Greenland, that would leave the rest of the entire planet to grow food on to support them. People today do not starve because of lack of tillable land, they die because of politics that prevent food from being distributed to everyone. We can double our current population and not even notice it if it weren't for political problems.

Also if you think about it, every man on Earth has to marry a woman and have two children just to maintain the world's population over time, and today in many cultures(not just in China) that is not happening. Russia is actually suffering from a loss of population because their younger generations are not having children. It will be a very long time before anyone has to worry about the world being over populated. The ones who are decrying such a problem are the ruling classes who find they are becoming too outnumbered by the lower classes and want to control that population to prevent their inevitable loss of power.


RE: take this with a grain of salt
By JediJeb on 8/22/2012 5:18:34 PM , Rating: 2
quote:
Second, 400ppm is normal FOR THE FCKING DINOSAURS, not for humans. And CO2 2500ppm?? Dude, are you kidding me? That was 600 fcking million years ago! You couldn't even breathe the air that long ago. It was toxic to modern animals. Animals of the of the quaternary period evolved with 250-300 PPM CO2. Boost it above that and you're putting entire ecosystems at risk.


I forgot to add this before

250 - 350 ppm – background (normal) outdoor air level
350- 1,000 ppm - typical level found in occupied spaces with good air exchange.
1,000 – 2,000 ppm - level associated with complaints of drowsiness and poor air.
2,000 – 5,000 ppm – level associated with headaches, sleepiness, and stagnant, stale, stuffy air. Poor concentration, loss of attention, increased heart rate and slight nausea may also be present.
>5,000 ppm – this indicates unusual air conditions where high levels of other gases could also be present. Toxicity or oxygen deprivation could occur. This is the permissible exposure limit for daily workplace exposures.
>40,000 ppm - this level is immediately harmful due to oxygen deprivation.

Seems even at 2500ppm we could survive and I would imagine within a few generations we would adapt to those levels without much problem, just as long as the O2 concentration doesn't drop too much. Of course if the plant life increases from the increased CO2 then O2 should not drop off.

It also is interesting that even at a level of 400ppm we would still be in the lower range of CO2 concentrations outdoors that are considered normal for our indoor environments. Currently most animals, bacteria and plants seem to do well in normal indoor environments so I doubt that even approaching the 1000ppm level would destroy the entire ecosystem.


RE: take this with a grain of salt
By Zaralath on 8/22/2012 5:17:03 PM , Rating: 2
Wouldn't 'climate scientists' have a vested interest in promoting what's best for their careers? (i.e. more funding for research)

Just a thought :)


By eggster007 on 8/22/2012 5:57:42 AM , Rating: 2
quote:
Mother Nature has an amazing ability to fix the damage that anything has caused her.


Yes, ecologically speaking the Earth is strong and resillient, it survived the Dinosaurs and it will survive after mankind......Earth does not need the human race to survive.

quote:
GWT is mostly a political game that politicians are playing to advance their own financial gains.


If they're right, then the small changes we make will help Earth's healing without the Earth making changes that have a dramatic effect on the human race.

...and if they're wrong, okay so we did some things that perhaps we did not need to do, but you know what....at least we're still alive and we've learned a lesson about the boys who cry wolf.

Why do people believe the changes that are being asked on all of us on a global scale are such a big deal anyways?


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