How do we Know Human are Causing Climate Change?

Science is about truth, and you don't have any.

You cannot explain how Greenland froze while North America thawed, because you focus on that which is bullshit = Co2.
You can't explain it either. It seems to be very important to you to know how Greenland froze because you ask it over and over.

Maybe it would help if you went to college and took some courses in science. If you still can't figure it out, you could ask the teacher to help you solve your problem. It is something that just a high school education won't prepare you for.
 
You can't explain it either. It seems to be very important to you to know how Greenland froze because you ask it over and over.

Maybe it would help if you went to college and took some courses in science. If you still can't figure it out, you could ask the teacher to help you solve your problem. It is something that just a high school education won't prepare you for.
The Arctic froze because plate tectonics thermally isolated the polar region from warm marine currents and the temperature threshold for extensive northern hemisphere continental glaciation was reached ~3 to 5 million years ago as the planet naturally cooled from a greenhouse state. You can see it on the oxygen isotope curve. Since that time the northern hemisphere has cycled between glacial and interglacial periods and has driven the climate of the planet. When the northern hemisphere glaciates, the oceans and atmosphere cool. When the northern hemisphere deglaciates - like it is doing now - the oceans and the atmosphere warm.
 
The Arctic froze because plate tectonics thermally isolated the polar region from warm marine currents and the temperature threshold for extensive northern hemisphere continental glaciation was reached ~3 to 5 million years ago as the planet naturally cooled from a greenhouse state. You can see it on the oxygen isotope curve. Since that time the northern hemisphere has cycled between glacial and interglacial periods and has driven the climate of the planet. When the northern hemisphere glaciates, the oceans and atmosphere cool. When the northern hemisphere deglaciates - like it is doing now - the oceans and the atmosphere warm.
Tell that to EMH It's his obsession.
 
He's been told .. many times ... sock-puppet for SSDD ... remember him? ...
Ah yes. SSDD tried to change the Stefan Boltzmann law and the 2nd law of thermodynamics. It was a fun battle. but EMH is just a broken record.
 
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