What happened to Global Warming?
When I put my first above ground pool in around the late 90's we were able to open it in April and start swimming in May.
Now my pool is just opened and still not warm enough to swim in
I'd like some global warming back...
Poor people, what a mess they got themselves into ... I hope they can get out.
Troll.... stupid remark.
The australian icebraker is capable to 1.3 meter of ice. Around the econuts its 3 meters. They'll be airlifted.
About aerosols in the stratosphere and their mitigating effect on global warming (on the whole climate system):
http://www.colorado.edu/news/releases/2013/03/01/volcanic-aerosols-not-pollutants-tamped-down-recent-earth-warming-says-cu
http://www.sciencemag.org/content/333/6044/866.abstract
And more about large oceanic cycles and their mitigating effect on global warming (of the atmosphere):
http://www.mnn.com/earth-matters/climate-weather/stories/global-warming-paradox-tied-to-cooling-pacific-ocean
I read another similar story where a scientist predicted that this oceanic cycle would keep temperatures on the planet in check until 2030.
And this tells us something more about the sun:
http://www.skepticalscience.com/print.php?n=1249
Who knows, maybe a slightly cooler sun could mitigate the global warming (on the whole climate system) a little as well, at least in the short-term.
And some articles that give me the shivers - I'm going to discuss a few articles because I encounter so much biased stuff on the internet, I want to take the time to explain why such articles aren't that good ... hopefully I can point out to people what to look for when reading such articles and how to recognize when an article is biased :
http://notrickszone.com/2013/12/03/german-scientists-show-climate-driven-by-natural-cycles-global-temperature-to-drop-to-1870-levels-by-2100/
In this article a scientists is explaining the temperature of the last 200 years by 1 physical process: solar forcing and then makes predictions about a little ice age in the coming century.
Of course his method is wrong. Normally if you want to explain a graph with 1 physical process, you FIRST remove all other known influences from the graph, so that only the contribution of that 1 process is left that you're interested in.
Since he includes the temperature data up to the year 2000, which include the influence of global warming due to the rise of CO2, you would expect that he would try to correct for that at the very least since including it would bias his "200 year cycle". But he doesn't, he doesn't even mention the effect.
Since he didn't do that, I think his conclusions are wrong.
This gives me the shivers too:
http://www.lavoisier.com.au/articles/greenhouse-science/solar-cycles/Archibald.pdf
The trend he finds in figure 4 depends almost entirely on 2 points at the lower and upper end... and he's not showing any error bars on those and since he's looking at very old data sets, the error bars should be pretty high ... now if you are aiming for a biased result, then that's a good way to get one.
Also his conclusion of 1.5 degrees celcius is pulled out of his ass, his graphs show little sensitivity to a solar minimum and/or maximum as far as I can tell.
Again... ignoring other effects and explaining everything in terms of 1 physical process seems dead-wrong to me. The only time you can do that is, when you know that all other processes are negligible and/or average out in the time-period you are looking. He doesn't justify this assumption. Worse, he doesn't even mention this assumption... and that's pretty bad imho.
Edit:
And there was a very large volcanic eruption in 1815, well withing the time range of the "Dalton period. It was one of the largest ever recorded.
http://en.wikipedia.org/wiki/Mount_Tambora
Now... I won't deny that there is a certain relation between intensity of the sun and the temperature on the Earth, but it would've been nice if the author had tried to correct for the influence of this major volcanic eruption before trying to quantify the relationship... I think he overestimates the cooling effect during the Dalton period because it includes the cooling effect of the volcanic eruption.
Yes, it is...probably best to desist.
Your 'econuts' are retracing Douglas Mawson's expedition from 1912-13.
Look it up. You 'might' learn something and help camoflage your ignorance.
I guess 'econuts' is slightly better than 'greenpeace activists'.
Just a little thought on the Antarctic: it's almost completely white, with an albedo of almost 100%. This means that almost all light is reflected straight back into space. This means that CO2 has little energy that it can absorb, since there is little energy in the infrared in the Antarctic. That would mean that in the Antarctic, there is little to no direct relationship between temperature and CO2.
That would mean that the Antarctic temperature is more sensitive to other physical processes that carry heat into the Antarctic than its dependence on CO2.
Edit: correction, the albedo of winter ice is 75% to 90%.
In addition, cold air has little humidity, so that the water-vapor feedback is very small in the Antarctic. That's a shame because the water-vapor feedback for CO2 is actually bigger than the CO2 absorption.
Oh... but snow does radiate like a black body (although it's angle-dependent). So in that regard, there should be some insulation from CO2 even in the Antarctic...
This is an interesting article on the properties of snow.
http://www.atmos.washington.edu/~sgw/PAPERS/1982_RGSP.pdf
Frogboy, I appreciate your responses (mainly 1704)...I mainly just wanted to make sure I fully understood your position, which I believe I do, or at least better than I did before...there is one thing I want to clarify, so I'll start with these:
Certainly of course without a heat source (like the sun or the earth's core), greenhouse gases are irrelevant...so, perhaps I should clarify that when I say "CO2 can increase temperature in and of itself" I am assuming that we already have a heat source...my reason for using that phrase "in and of itself" was to make clear that CO2 does not rely on a driver (such as Milankovitch cycles) to affect temperature...in other words, while CO2 may not have historically driven temperatures, it does not require a driver to raise temperatures...ergo, CO2 can raise temperatures in and of itself...that probably was poor word choice on my part...
I am, however, a little confused on your analogy...so we have a room that can burn when a flame is introduced, and when old newspapers are added to the room the fire is bigger than it would be other wise...in this analogy, the room would be the earth and the flame would be the sun (as it is the primary heat source)...without old newspapers, the room still burns provided you have a flame (just as the sun would still heat the earth)...of course, adding the newspapers makes the fire worse just as adding greenhouse gases makes the earth warmer...
So, with that interpretation, we are left with this comparison: just as newspapers can't start a fire without a flame, greenhouse gases can't increase temperatures without a heat source...but we (at least for several billions years) will always have a heat source, and so for the analogy to hold your room would always have to have a flame/fire...
So I guess my question is, what is the purpose of your analogy? If used logically, it doesn't show that AGW is wrong -- if anything it shows how AGW could be right, and I don't believe that's how you intended the analogy to be used...
That analogy was/is the main source of my confusion...you acknowledge, through your statements, that simply adding greenhouse gases can in fact cause temperatures to increase (the amount of course being debatable) -- but then the way you have used the analogy suggests you believe greenhouse gases require some other force beyond a simple heat source to cause temperature increases...in other words, when I read your analogy I feel like you are denying CO2's ability to cause temperatures to increase, but that doesn't seem to be your actual position on the issue...
EDIT:
My understanding of the hypothesis is that the Milankovitch cycles caused only a fraction of the historical temperature changes, the implication then being that changes in greenhouse gas concentrations accounted for the rest of the historical temperature changes...I don't have specific numbers for this, but when I read about the hypothesis the picture coming to mind is something like 5% of the temperature change being Milankovitch cycle and the other 95% being from a feedback loop involving increases/decreases of greenhouse gases...not terribly convincing or informative, I know, but who said climatology was an exact science?
Yeah didn't have to look that up, i knew that. Pretty stupid in a time when ice increases enormously don't you think. The boat is filled to the brim with econuts/greenpeace terrorists who don't stop to spew forth the most incredible nonsense about ice/climate.
So now poor penguins suffer from too much ice, and also poor algae die. Make up your mind please. Either ice is good or bad. You can't have it both ways and claim a natural disaster no matter what happens.
It's how the whole agw circus operates. Absurd claims of disasters to be which never happen and then claim afterwards that it didn't happen is actually the disaster.
HEADS I WIN TAILS YOU LOSE is the motto. The weirdest of all is anyone taking them still serious.
Anyway your icebreaker gave up as was easily predictable. So now the polar hero's who compare their 'suffering' to people who made the voyage almost barefoot ages ago will have to be airlifted. Please donate some more to the 'we are stupid' fund
Saving the Antarctic scientists, er media, er, activists, er tourists trapped by sea ice http://wattsupwiththat.com/2013/12/29/saving-the-antarctic-scientists-er-media-er-activists-er-tourists-trapped-by-sea-ice/
I'm afraid I have to agree with this... almost every extreme thing gets blamed on global warming, even if there's not that much global warming yet. Media hypes about record hot months and record hot summers... it's just too much.
Record setting temperatures don't work that way... they're due to a set of regional effects, like due to a temperature inversion so that heat cannot escape into the upper atmosphere. Such extremes exceed the average by a lot, like 5 degrees or more. A general 1 degree warming is just dwarfed by the other effects... so far at least.
I've read about some research in the Amazon forests. The researches claimed the forests were drying out and would be destroyed by a catastrophic wildfire... except that never happened. And they blamed it on global warming.
All of that hype... I don't like it either, it's too soon for that. There'll be plenty of time for crying when the temperatures rise a few degrees further. And sure it's possible that the Amazon will dry out and eventually disappear, but now .... it just seems to soon for that.
So far I think the global warming is mostly statistical in nature. Lots of things take place: slightly hotter summers, slightly warmer winters, more melting of glaciers... but nothing catastrophic and mind-boggling. I think it's too soon and there's plenty of time for the real disasters to take place as warming continues.
The exception may be the North Pole... that seems pretty extreme, but then again, that's an extreme environment to begin with and it seems like there's some huge warming feedback going on there. After all there's a huge difference between a situation of extensive ice-cover and very cold temperatures (high albedo and low humidity with low absorption of heat by water vapor) and open water (with low albedo and high levels of water vapor). It might still serve as an example for what's in store for us in the longer run.
Have you not read about the record recovery of the arctic ice sheet?
Nope... must be another one of those hypes ?
Yeah must be, found a blog of this fellow who has a pretty strong opinion on the subject
http://blogs.telegraph.co.uk/news/tomchiversscience/100237031/you-genuinely-have-to-be-an-idiot-to-think-that-arctic-sea-ice-is-recovering/
Funny that Chivers uses the same 'trick' he arrogantly criticizes. Take a look where his graphs begin. No denying that the trend of Arctic sea ice remains downward and the current uptick is not 'recovery'. Only time will tell if it's the start of a new trend.
The point is that a key scare-mongering claim of some AGW proponents was that Arctic sea ice was 'scheduled' to be gone by as early as this year, due to AGW. The Arctic sea ice trend, in any event, is not evidence of CO2 as a driver of temperature, just a reflection of temperature.
The global sea ice trend, however, is less steep with a mean decrease of about 4% since 1980.
I think I've heard of such claims a while ago ... sure such claims are ridiculous.
I'm not sure what you call evidence. It sure is a coincidence that the Arctic starts behaving so strangely after mankind has pumped a trillion tons of CO2 into the atmosphere ....
But we do not need that as evidence, there's enough evidence for the effects of CO2 and H2O from the labs and some basic laws of physics.
Do you have some faith in those measurements and those equations at least?
As long as no evidence is required, we can accept anything as fact.
I'm not sure what you mean by that. Lab measurements + equations are evidence of the CO2 effect ... there's no tradeoff with the sun, or clouds, everything was measured under controlled conditions in the lab ...
Cool... Somebody has a lab that recreates the Earth's climate under controlled conditions over millions of years. Who knew? We can put this thread to bed now, finally.
I was talking about the absorption spectra of gases: CO2, H2O and so on.
Together with knowledge of the composition of the atmosphere (partial pressure) and the necessary equations, those give you the contribution of CO2 to the heat balance of the Earth.
Don't bore me with all that 'partial pressure' stuff. I just wanna twiddle the knobs on that thing.
Ok ... good luck twiddling your thing ...
Speaking of twiddling...
This is why I enjoy the arrogance of AGW proponents who claim the models are good enough and we must act based on their predictions.
The big picture.
Wait for it....
IPCC3, 2001
Lulz...Dr. Richard "Clouds Will Save Us" Lindzen...
"Dr. Lindzen is “feeding upon an audience that wants to hear a certain message, and wants to hear it put forth by people with enough scientific reputation that it can be sustained for a while, even if it’s wrong science,”"
http://www.nytimes.com/2012/05/01/science/earth/clouds-effect-on-climate-change-is-last-bastion-for-dissenters.html?_r=0
Lindzen felt that the disappearance of clouds in a warming world would allow more radiation to escape the atmosphere, resulting in less global warming but in the end, he even admitted he made numerous errors in his paper on clouds. The Heartland Institute sure does love them some Dr. Lindzen though...
Unfortunately, fewer clouds also means less albedo*, and more likely increased temperatures.
http://news.nationalgeographic.com/news/2013/12/131231-climate-sensitivity-doubling-carbon-warmer/
*it's more complicated than this in reality, but I won't bother to go into detail here - look it up if interested.
I don't want to repeat myself, again, but ok ...
I already know that models are not perfect.
They're the best we've got for predicting the future.
And they contain the best of our knowledge.
You want to throw all that out of the window, just because they are not perfect??? Imho that's just ridiculous. I would prefer to use the results, and if they don't match reality, then it just means that our understanding of nature isn't yet good enough and they need to be tweaked.
Also... I sincerly doubt that you need to be able to model a single cloud, just to be able to predict a global phenomon. There's also something like insensitivity to small details... if you look at the greater picture. The presence of a single cloud ... while it might change the future in a chaotic system, it won't change the average of many model runs.
There's also a misconception about modeling... models are NEVER perfect and they shouldn't be.
Just suppose that someone invents a unifying theory of everything and we'd have a model that could recreate reality perfectly.... then it wouldn't tell you anything, nothing at all. You could run a simulation that looks like earth, but you don't have any understanding about this virtual Earth, in the exact same way as it's hard to understand our real Earth.
Just suppose we'd increase CO2 in such a virtual Earth...
You'd have the exact same discussion as we'd have now... you wouldn't understand shit.
He uses examples from old research... he doesn't go into any of the basic physics ... he laughs about a 1 degree warming ... he doesn't go into the issue what these observations mean for the next 100 years .. he makes a comparison of climate science with eugenics ... the only thing that I'm left wondering after looking at this video is: what's wrong with this fellow? Is he out of his mind??
Interesting, is that just one more paper on the subject or is there now less uncertainty about how clouds will respond to warming?
Here's a little article I found which discusses a paper from a researchers who obviously suffers from some serious tunnel vision.
http://www.livescience.com/15293-climate-change-cloud-cover.html
This is a nice quote from the article: "I cannot believe it got published," said Kevin Trenberth, a senior scientist at the National Center for Atmospheric Research.
Scientists flaming other scientists... but oh well, they're only people and this is as old as science.
It is a shame that science in general is discredited by a small bunch of such losers who think they know better.
Journalists are also to blame for this.
And big egoes.
And perhaps also private sponsoring.
(The exact same goes for the extremists from the "pro" side of course).
Perhaps I'll add one more challenging statement:
If CO2 keeps being added uncontrollably to the atmosphere, its effects are predicted to out-perform any other possible mechanisms that control temperature on the earth (cloud cover, humidity feedback, the sun, oceanic circulation, ice caps and albedo, volcanism).
Do people agree with this?
Ones with a brain won't.
There's this wee 'little thing' that is the numero uno decider as to whether life exists on this rock...and it isn't CO2.
Hint. Look outside in the daytime. Tell me what you see....
You really are giving a shit-load of scope for people to ridicule the issue of Global Warming...when at every chance you get you discount THE SUN as irrelevant.
Without that meaningless blot on our existence there WOULD BE NO SUCH EXISTENCE.
...and no fuckwits/Industry generating CO2 for you to get all emotional over.
There would be NOTHING but a rock.
NO. People will NOT 'agree with this'.
Am I making sense yet?
There are many great features available to you once you register, including:
Sign in or Create Account