Originally Posted by still single
Like the IPCC "hockey stick" graph?
The "hockey stick" has been checked and verified by many of the world's premier scientific institutions. The data showing escalating 20th century temperature rises comes from several different sources and it all shows the same thing. The one solitary scientific paper purporting to tear it down (McIntyre & McKitrick) has itself been shown to be seriously flawed by other scientists.
Saying "liar liar pants on fire" doesn't destroy several decades of scientific evidence.
And the fact that IPCC predictions of the global temperature increase for the past decade have been spectacularly wrong?
Actually the IPCC do not give "decadal" predictions as such, but longer term ones. It is very difficult to make global climate predictions for a given 10 year period, but easier to make predictions over a longer period. They give a range of predictions depending on the scenario, eg, "business as usual", lower economic activity, etc, etc. The predictions generally align well for the circumstances over the past several decades, but can vary depending on several factors.
And saying over and over again that increased CO2 levels will raise global temperatures -with no evidence to back it up -because everyone 'knows' that that is how it works.
CO2 is a "greenhouse" gas which absorbs and re-radiates infrared radiation (ie, "heat"), thus trapping it in the Earth's atmosphere. That is governed by the laws of physics. Specifically quantum mechanics (aka Albert Einstein, Max Planck, and a heap of other famous Nobel Prize winning physicists), the structure of molecules and atoms, and radiation physics. The more of this you shovel into the atmosphere, the more heat has to be trapped. The same rules apply on Earth, Mars, Venus, and any other celestial body with an atmosphere.
If you want to say that it doesn't or cannot do this, then you're going to need to invent new laws of physics. I await with baited breath........
And ALL the carbon offsetting that mankind is going to do over the next century can be negated by just one volcanic eruption.
Absolute crap.
Mt Pinatubo volcanic eruption 1991 (2nd largest terrestrial eruption of the 20th century): 42
million tonnes of CO2 (Gerlach, 1996, US Geological Survey)
Human/industrial emissions of CO2 in 1991: 23
billion tonnes of CO2 (CO2 Information Analysis Centre, Oak ridge National Laboratory, US Department of Energy)