måndag 21 september 2009
CO2 vs Global Warming: Cause or Effect?
The main argument of climate alarmism supported by IPCC is that ice core records show a close correlation between the concentration of CO2 in the atmosphere and global temperature over the last four glacial-interglacial cycles. This is taken as evidence that CO2 is an important greenhouse gas, which introduced in climate models predicts that doubling of preindustrial CO2 could cause global warming of up to 6 degrees Celcius. On this basis IPCC recommends control of CO2 emissions, to be negotiated at the UN Climate Change Conference in Copenhagen in December as a continuation of the Kyoto Protocol.
However, the data shows that CO2 lags temperature with about 800 years, which is compatible with the fact that a warm ocean releases more CO2, just as a warm bottle of coke.
The evidence thus suggests that it is the temperature that influences the CO2 concentration in the atmosphere, and not the other way around. The fundamental argument of climate alarmism supplied by IPCC thus seems to lack rationale...or maybe the dependence is not as simple like that...see the discussion below...anyway the fundamental scientific problem is this: What is the climate sensitivity or the effect on global temperature of carbondioxide emission?