Silicon Investor (SI) -- The First Internet Community

STOCKTALK

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor. We ask that you disable ad blocking while on Silicon Investor in the best interests of our community. If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.

Gold/Mining/Energy : Oil Sands and Related Stocks -- Ignore unavailable to you. Want to Upgrade?

To: Grommit who wrote (20843)	5/17/2008 9:25:28 PM
From: The Vet	Read Replies (1) \| Respond to of 25575

Sorry Grommit, but after quite careful perusal of all your links, some of which are quite detailed, all I can ascertain is that there is good evidence that atmospheric CO2 has risen, in fits and starts and that some temperatures have risen without much direct correlation to the observed CO2 levels. Generally however both have increased at least until last year when temperatures seem to have dropped without any real changes in CO2. However not a single one of all of the links quotes, references or demonstrates any good experimental data or specific measurements that link atmospheric CO2 concentrations to atmospheric temperature changes. There are not even any decent lab studies that test that hypothesis. If I have missed one please point out the specific study. CO2 does absorb heat in the form of infrared radiation peaking at 14 micrometers. It absorbs virtually nothing at a longer wavelength. This is recognised science demonstrated by actual experiments. The present levels of CO2 already absorb virtually all the energy at that wavelength. Increasing the level of CO2 therefore will have virtually no effect. This fact alone negates the whole argument that increase of man made CO2 will make any difference to the temperature of the earth, and makes all carbon taxes, sequestrations, reductions of emissions of CO2 a complete waste of time, money and resources. physforum.com All your reference are based on the "truism" that rising CO2 levels "must" cause linear rises in atmospheric temperatures without a single shred of evidence to support that. In fact the basic science directly refutes it. When their extrapolations start to get shaky they start adding in methane, water vapour and other odd gasses as "CO2 equivalents" to support their assumptions. While these other gases certainly have effects, directing action at CO2 emissions is completely pointless if it is not the actual cause. That global temperatures have risen over a very geologically short period is not the question. That CO2 levels are rising is also not in question. What is in question is whether there is any real linkage between the two and even if there is which is the cause and which is the effect? Every study that commences with the premise that increasing CO2 level in the atmosphere causes significant temperature rises is, in my opinion, based on faulty science and because of that it will always produce a faulty result.

To: Grommit who wrote (20843)	5/17/2008 9:45:25 PM
From: Cogito Ergo Sum	Respond to of 25575

OT, Grommit, geocraft.com During the Triassic, Jurassic and Cretaceous periods there were lots of big things called dinosaurs walking around as well as mammals and crocodilians .. dinosaur ancestors died out during the Trassic. The temperature of the planet was much hotter then but there was certainly abundant life... inre: A 6-degree increase would eliminate most life on Earth, including much of humanity. Has this guy studied the Carboniferous period.. ? which preceded the periods I cite and those I cite above ? Yes much less animal life but certainly lots of plant life.. sigh.. The site I linked has a nice chart but any investigation of those periods will reveal the same data. 6 degrees until the end ? I seriously doubt that... The Black Swan EDIT There is a typo in the text some 30 million years before dinosaurs appeared, known as the Carboniferous Period of course that should read 300