Temperature Monitors Report Widescale Global Cooling

#26
#26
I need to qualify this question by stating that I am not being sarcastic. I watched a show on a cable network a couple of years ago and a scientist was studying ice cores from the south pole region and came across evidence of the co2 level being three times as high as it is now during one of our ice ages. I may have understood this incorrectly. I was wondering if you have hears or seen anything about this?
 
#28
#28
When I was growing up scientist were telling every one that the ozone layer was going to disappear. Years later after study we find out that the ozone layer expands and contracts acting somewhat like a thermostat. I guess my point is we don't need to be caught up in hysteria.
 
#29
#29
A couple comments - I believe most scientists are more concerned with discovery than with being associated with the next big thing. Big problems certainly attract attention but it's difficult (near impossible except in rare cases) for someone to do good science and shift from topic to topic as the "winds change".

Secondly, while there have been some exceptions, I believe the GW hype has been driven by users of science rather than creators of science. We've seen time and time again (even in GW science) where the creators have been shocked and dismayed at how others have twisted the information to fit a larger agenda.
 
#30
#30
KB5252 said:
I need to qualify this question by stating that I am not being sarcastic. I watched a show on a cable network a couple of years ago and a scientist was studying ice cores from the south pole region and came across evidence of the co2 level being three times as it is now during one of our ice ages. I may have understood this incorrectly. I was wondering if you have hears or seen anything about this?
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You could be right. I *think* that we crossed the highest previously documented CO2 levels when we crossed 380 ppm or so. But, I'm not sure about that (it could be that temperature was higher than in the past, not CO2 - my memory is fuzzy there).

CO2 has certainly cycled throughout history as the temperature and sea ice extent cycled. As temperatures increase, more and more CO2 is released from the oceans (as well as the northern regions' permafrost). The increasing CO2 would further drive increasing temperatures until something such as a downturn in the solar activity would cool the earth, decreasing CO2 concentrations. There is no doubt that these cycles have happened for a long time. Climate scientists are trying to figure out how man's input of CO2 and other greenhouse gases to the atmosphere will affect climate when combined these natural sources of greenhouse gases. It is a complicated problem, with a lot of uncertainty, and that is generally why it is so easily attacked. The scientists number one priority is getting the uncertainty in their numbers down to levels where implementing public policy based on them is a reasonable thing to do. The IPCC, as of their last assessment report released last year, feels that the scientists have at least gotten the uncertainty down to a level that they can "unequivocally" say that man has caused higher temperatures through greenhouse gas emissions. But - there is still a lot of uncertainty in very serious aspects like..how much drought can we expect? Or, what kind of ecosystem effects can we expect? These are the more uncertain questions, but questions that would directly impact public policy planning.
 
#31
#31
in the early 80s it was believed that high CO2 caused ice ages because it "blocked out the sun."
 
#32
#32
droski said:
in the early 80s it was believed that high CO2 caused ice ages because it "blocked out the sun."
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I don't know if I'm familiar with the line of thinking you are referring to. I am familiar with the global cooling concerns in the 1970s that were related to sulfur particulate and other reflectors. This is often portrayed (incorrectly) as the belief that CO2 would lead to global cooling.

But, it sounds like you are talking about something else. Was their a separate theory that suggested very high concentrations of CO2 would reflect UV radiation instead of transmitting it or absorbing it?
 
#33
#33
TennTradition said:
I don't know if I'm familiar with the line of thinking you are referring to. I am familiar with the global cooling concerns in the 1970s that were related to sulfur particulate and other reflectors. This is often portrayed (incorrectly) as the belief that CO2 would lead to global cooling.

But, it sounds like you are talking about something else. Was their a separate theory that suggested very high concentrations of CO2 would reflect UV radiation instead of transmitting it or absorbing it?
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:cray: i don't know I took the class 10 years ago. i'm too old to remember these things.
 
#34
#34
I blame the current cooling trend on Hillary Clinton's recent nose dive. It is cold enough around her campaign headquarters to cool the earth for decades!
 
#37
#37
OrangeEmpire said:
World Temperatures according to the Hadley Center for Climate Prediction. Note the steep drop over the last year.
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Sounds like everyone trusts the Hadley Center for Climate Prediction. So how does everyone feel about this:

Human-caused global warming appears to be a ''major driving factor'' behind recent increases in the flows of rivers emptying into the Arctic Ocean, British climate scientists have concluded. The researchers ran computer simulations of the earth's climate and water cycles with and without increasing levels of smokestack and tailpipe emissions linked to rising temperatures. Only simulations that included man-made greenhouse gases generated rising Arctic river flows similar to those actually measured since the 1960's, said the researchers, from the Hadley Center for Climate Prediction and Research.
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World Briefing | The Arctic: Greenhouse Gases Linked To Increased River Flows - New York Times
 
#40
#40
OrangeWilly said:
Al Gore has eliminated global warming. After inventing the internet I honestly did not think he could do any better than that....Now look at him...gone and saved humanity.
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Al put global warming in a LOCK BOX.
 
#41
#41
Pretty convenient to say that solar activity is lower now that temps are on the decline. And as far as studies go there is no way in heck you can convince me that the funding for pro GW studies is equal to non GW studies. The new buzz word on the Dem's side of the debates has been Green this and Green that.. I know I read somewhere that the previously mentioned post about Co2 being responsible for ice ages were the same ones arguing today that Co2 causes GW. And lastly, it really peeved me when my 8 yo daughter came home and told me that they showed An Inconvenient Truth at her school, not once but twice.
 
#42
#42
tim said:
Pretty convenient to say that solar activity is lower now that temps are on the decline. And as far as studies go there is no way in heck you can convince me that the funding for pro GW studies is equal to non GW studies. The new buzz word on the Dem's side of the debates has been Green this and Green that.. I know I read somewhere that the previously mentioned post about Co2 being responsible for ice ages were the same ones arguing today that Co2 causes GW. And lastly, it really peeved me when my 8 yo daughter came home and told me that they showed An Inconvenient Truth at her school, not once but twice.
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An eight year old? Your kidding right?

Is this a public or private school?
 
#43
#43
The amount of disinformation and confusion on this subject should not shock me, but it still does...there is a serious disconnect here. For example, it is often stated that the same scientists who are warning of global warming were the ones warning of a impending little ice age. When, in fact, this is far from the truth (even the notion of a large scientific focus on an impending little ice age is far from reality). Yet...people will go on saying it, and others will go on believing it - and spreading it. Oh well....
 
#44
#44
iraqi.jpg
 
#49
#49
volinbham said:
Now I have to go look at how many of my posts you've changed...
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I am not admitting to anything, but it is safe to say your persona around here is a staunch Hillary supporter who can't wait for more taxes and UHC.:p
 
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