Where do you get that percentage again?I get it this way...
According to the National Center for Atmospheric Research the atmosphere is 5 quadrillion tonnes (5 x 10(15))...
CO2 is 0.04% of that giving us that the total amount of CO2 in the atmosphere is 2000Gt (5Qt*0,04/100 = 2,000Gt) (not 3000Gt)...
We know that humans emit 6.4Gt into the atmosphere pr. year... but not all of the emitions of CO2 reaches the atmosphere...
The ratio of the increase in atmospheric CO2 to emitted CO2 is known as the 'airborne fraction'
... this varies for short-term averages but is typically about 45% over longer (5 year) periods... so of the 6.4Gt humans emit 'only' 2.88Gt becomes atmospheric CO2...
So the increase in atmospheric CO2 by humans is (2.88Gt/2000Gt) x 100 = 0,144% (these are rounded numbers and the actual result is 0,127% (apperantly I forgot to times 100 in the original calculation) :-)... the actual number that humans increase atmospheric CO2 is NOT 0,00127% but 0,127%... still not enough to effect warming by any mesurable standard (you still have to remember that the 2000Gt CO2 is still only 3% of the total amount of greenhouse gasses and a VERY weak one at that... which make the 0.127% increase in CO2 a VERY weak increase of 0.00381% of the total amount of all greenhouse gasses... (0.127%/100) x 3... but still a HUGE calculating error on my part... hope you can forgive me...
But still the triggering influence, the rise in temperature, has to persist, if there is going to be an effect
Eh not really... off course it has to persist for a period (a warm summerday is not gonna do the trick) :-D - but not for the 800 years...
This is how it works...
When the oceans are 'cold' CO2 is trapped by the oceans and it falls towards the bottom (by far the largest reservoirs of CO2 is at the bottom of the oceans)...
Now comes a prolonged warm period on earth (high temperatures in the atmosphere) and it starts to heat the oceans...
Let's look at how the oceans work... let's take the Gulf Stream in the Atlantic ocean... let's say for instance that it is 15 degrees Celsius when it's warm... then it travels north and gets cooled down to let's say 2 degrees Celsius so it goes towards the bottom of the ocean... then it travels back south and heats up back to 15 degrees Celcius and it does it all over again...
Then the atmosphere gets warmer and heats up the Gulf Stream so it's now 17 and 4 degrees Celsius respectively...
That increase by 2 degrees starts to
release the 'small' reservoirs at the surface first (but that isn't much)... but more importantly also start to make the CO2 on the bottom rise towards the surface (it's still cold but now 2 degrees warmer than before) and that will be released later when it reaches the surface...
And this process doesn't just take a couple of months (or even years)... the oceans are SO large and deep that this is a VERY sloooooooooow proces that takes centuries... said differently... when something happens in the atmosphere it takes the oceans (or more specifically the bottom of the oceans) centuries to react... and it doesn't matter that the atmosphere has cooled again in the meantime... the effect of that cooling woun't be seen in the oceans for centuries so they keep heating up and release CO2 loooong after the atmosphere has cooled again...
Also, what that 800 year lag seems to indicate: in 700 years there is a major shit storm ahead ;)
No not really :-)
The heat we see today are a result of the solar activity and not the result of the increase in CO2 caused 800 years earlier... remember we had the little iceage inbetween the medieval warm period and now so the CO2 should start to drop again sometime in the middle of this century... and 800 years from now it wil go back up to present day levels... so they woun't have more CO2 than we have today and the heat they will have will be determined by the solar activity then (which is cyclical so maybe they'll be allright) :-D
I don't know where there is big money in climate science if you are arguing for global warming. Who pays that?
Well the governments for one...
Let's take the US as an example... before the global warming theory came about the field of climatology was a VERY small and underfunded area of science (avegering about $170mill pr. year)...
After the global warming theory that number jumped to about $2bill pr year almost instantly...
And ALL that money (2 billion dollars) goes to research that promote the theory of manmade global warming... if you as a scientist find in your research that humans are not to blame do you know how much research grants you'll get from the gorvernment again? - I can tell you it drops to 0 dollars... you can still research all you like but the money from the government stops which means if you want to keep making money and feeding your family you are MUCH less inclined to publish your findings if they go against the theory... but if you instead finds that not only is global warming manmade but the result is a catastrophic rise of 10 meter of the oceans in 50 years... you wanna know how much research money starts flowing your way? - A LOT :-D - it's all about incentive... and scientists are humans too and they are not above incentives...
Only after it became political, the denier side popped up, apparently sponsored by a lobby that would lose money if emissions were regulatedWell no... when the theory first came out it was rediculed by the scientific community at large... so the deniers were plenty... but it's true that it was first when the issue became political that the deniers became political and public...
What happend was...
When the theory first was proposed it didn't have very much support in the scientific community (and by scientific community I mean the VERY small number of climatologists that existed back then - it was pretty much unknown to the rest of the world)...
Then came Margaret Thatcher (English prime minister back in the 80'ies) and she wanted to promote nuclear power to decrease Englands dependency of foreign oil...
And when the coal workers in England went on stike in the 80'ies she had had enough and found this little known (and by that time) mostly discarded theory of manmade global warming and saw the potential... so she started promoting the hell out of it (running several adds on television and in the newspapers and talking about it publicly time and time again) and slowly she convinced the public that the world was ending if we didn't stop using that pesky oil from abroad and the coal from home and started using nuclear power instead...
On top of that she started funding the hell out of that little area of science giving thousands of jobs to anyone who wanted to work in the field (politicians and public officials and scientists alike... off couse only the ones that agreed with her... she was not stupid) :-D
Then she went to the EU and got them to excert pressure on the UN to take this seriously and they did and the UN opened the IPCC (consisting of mostly politicians and public officials) and told them to write a report... so they did (and off course the politicians and public officials at least knew on which side the bread was buttered... so it's no surprise what conlusion that rapport came out with)...
And the sparked interest in the public and all that extra money in the field got a lot of new people to study climatology that were already convinced that the world was ending so slowly the field got bloated by young scientists set out with fiery swords in their hands to save the world from humans thereby creating a 'consensus'...
And here we are today...Money from the governments pouring from an almost endless hole in only one direction (towards those scientists who have the most dire predictions)...
And a field of mostly young scientist (or they were in the 90'ies when they started) indoctrinated before they started into studying the field of climatology to save the world from ending... and if any one say they are wrong they take up their fiery swords and smite the nay-sayers :-D
And in the process we lost the science :-(
Love Thothlike
by
Thothlike on
12/01/2009 07:27:31 PM EST
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