http://upload.wikimedia.org/wikipedia/commons/c/c2/Vostok-ice-core-petit.png
this graph would totally void the Global warming folks ideas.
first, theres a very "constant" wave of temp increase and co2 increase, but it ALSO shows that C02 increases follow temp increases (delayed by 200ish years). IE the Temp increase causes the c02 increase, not the other way round.
This graph disproves the science?
I can't really imagine what you see in there to disprove anything. In fact, the correlation of CO2 to temperature and the relation of dust (volcanic events) to the same is quite striking. It is amazing the fact that this keeps coming back. The linear association of CO2 to temperature on this planet is easily observable and the process is understood. Background temperature isn't only affected by CO2 though.... local conditions will do it as well.
FYI it's already been discussed how warming lags CO2. It takes approximately 5X the amount of energy to turn ice(H2O) to liquid(H2O), meaning all the extra energy trapped is spent
melting the ice, instead of
raising the temperature in the background. That, as well as the fact that liquid water requires an extensive amount of energy to warm past any given point, and holds that energy extremely well. Thus, there is a built in "lag" to any change from a cold climate to a warm one, simply because of all that extra energy needed to melt. Meaning... if there's a giant block of ice, the energy won't go to warming the air.....it will go to melting that big block of ice.
Take an ice cube in hot water and measure the temperature over top of it. You might be surprised to find that, even though it's melting all over.... the air above it is only about 55 degrees. Make the water only 40 or so degrees in the experiment and the air over top of the cube is only just above freezing. Water holds onto energy extremely well. This stuff is the kind of thing you learn in 8th grade science.... maybe you just need to apply your old knowledge?
As well, the lag also is integrated into the planktonic "sink" by which the oceans lock away all that carbon...they suck up CO2 and then use it for respiration, then die, sinking to the bottom and locking away excess CO2. Initially, plankton (chlorophyton) will increase population in response to the amount of new CO2 and will hold it almost in check, but as they are reacting to the situation and not "on standby" there is no way they can keep up with a large continual dump of CO2 into the system. Sooner or later the water around the most prolific warm and they start dying....accelerating the curve.