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Politics : Formerly About Advanced Micro Devices -- Ignore unavailable to you. Want to Upgrade?


To: TideGlider who wrote (902537)11/22/2015 8:15:02 PM
From: combjelly  Read Replies (2) | Respond to of 1574326
 
There is no evidence of carbon dioxide being a poison

Talk about stupid. Tell this to the people who have died because of it.



To: TideGlider who wrote (902537)11/22/2015 11:11:43 PM
From: J_F_Shepard  Read Replies (1) | Respond to of 1574326
 
Al Gore used this ice core data to claim that carbon dioxide made the temperature of the world rise, threatening life on earth, because there was a correlation between atmospheric CO2 levels and the world’s average temperature. Yet the data from the much-celebrated Vostok ice cores paints a very different picture: Up goes the temperature, followed by a rise in carbon dioxide.
You vilify Gore for presenting data that proves global warming is real......but Gore did not generate that data, he is not a scientist but he is a very smart guy who understands the science. He is also quite knowledgeable about computer architecture and a gave a presentation to comp sci guys that was published in a now defunct periodical.... I know it's hard for many, but try to keep climate change a science topic and not a political one.........

re: CO2....another little detail about carbon dioxide is the fact that it is has lower thermal conductivity (is a better insulator) than O2 or N2, ie air.....hence as CO2 concentration increases, the rate of radiative cooling can be expected to be lowered.... This could be proven experimentally by building a box and heating the air inside and measuring its temperature.....I'll bet if you added increasing amounts of CO2 the temp in the box would increase....



To: TideGlider who wrote (902537)11/23/2015 2:46:02 AM
From: combjelly  Respond to of 1574326
 
Yet the data from the much-celebrated Vostok ice cores paints a very different picture: Up goes the temperature, followed by a rise in carbon dioxide.

Only to those who don't understand the mechanics.

To understand it requires requires some knowledge, thought and facts. Something deniers tend to be light on. But, lets give it a whirl. Where does the CO2 come from in a warming trend? It could be volcanic, but that doesn't seem to be all that common, but it does happen. In most cases, it seems to come from the tundra and the bogs which are affected by the warming temperatures. The bogs dry out with increasing temperature. That exposes their carbon to the atmosphere causing it to oxidize. The tundra melts and, well you know. So a lag of a period of time between warming and a rise in CO2 is expected. However, as CO2 levels go up, so should the temperature. Which is exactly what you see in the data.

To recap, except for when high levels of vulcanism occur, there should be a lag between the rise in temperature and the level of CO2. At some point, however, the original mechanism runs out of steam and the increasing levels of CO2 drives the temperature. And that is fully supported by the Vostok cores.