deltex1
Gold Member
But with even slight increases in temperature driven by CO2, you'll see increases in freshwater ice melting and dilution of the salination of sea water. Which would effect those convection belts by reducing water density.
Slow, disrupt or even divert these heat pumps and you can see dramatic changes to the climate of regions that get significant portions of their heat from these pumps.
Slowing the North Atlantic Oscillation would tend to lead to the cooling of Northern Europe.
Slight increases in temperatures could be part and parcel of the global warming that has been occurring since the last ice age. That is certainly tied to Milanvovich cycles (though we're not sure exactly how).The warming trend could be a factor of long-term changes in oceanic heat pumps. We can't just assume that CO2 is the main culprit.
It could be. But that would mandate that the timing of the warming trend matching up to our pumping massive amounts of CO2 into the atmosphere was just a grand coincidence. A warming trend faster than we've ever measured. We haven't seen 400pm in the last 3,000,000 years.
And now, during this unprecidented spike in CO2 levels....we see unprecedented spikes in temperature that match it exactly. (Though my meaning for 'unprecedented' in each case is slightly different. For the C02 we haven't seen that level in 3,000,000 years. In temperature we have. But the speed of the increase is unprecedented in 800,000.)
That's really unlikely. You might call it the 'grand coincidence theory'. It might be fun to calculate the odds. But give the rare nature of each (no more than 1 occurrence in 800,000 years, 1 in 3,000,000 for the other), the likelihood that they both occurred by random chance at the same time would be......wow. Like lottery odds. A number best represented with an exponent.
A direct correlation between higher temperatures and higher atmospheric CO2 levels is orders of magnitude more likely. Especially since we can point infrared satellites at the atmosphere and measure in real time the higher infrared emissions of atmopheric CO2.
Human CO2 is a tiny % of CO2 emissions
“The oceans contain 37,400 billion tons (GT) of suspended carbon, land biomass has 2000-3000 GT. The atpmosphere contains 720 billion tons of CO2 and humans contribute only 6 GT additional load on this balance. The oceans, land and atpmosphere exchange CO2 continuously so the additional load by humans is incredibly small. A small shift in the balance between oceans and air would cause a CO2 much more severe rise than anything we could produce.” (Jeff Id)
How do human CO2 emissions compare to natural CO2 emissions