Can someone explain why this comment is "insightful"? How can you engage in a "civil dialogue" when the other side keeps sniding "really? eh? hmmm..." without giving any substantial reasoning?
Yes, the Himalayas are the youngest mountain ranges on earth, but the timescale is still way too long to explain the occurence of ice-age cycles.
We actually did a simulation using a coupled GCM to remove the Tibetan pleateau all together, to see its influence. The result was that some aspects of the current climate system, for example the Asian monsoon, or the western Pacific warm pool has weakened dramatically. The jet stream did change dramatically, but that alone was not enough to trigger a continental ice sheet.
We then changed the orbital parameters to see which impact is greater. The result was that a slight change in orbital parameters is far efficient in changing the northern hemispheric surface temperature in the order of 7-8 degC.
So the parent is correct in some respect. I guess he just didn't bother to explain in detail.
Slashdot Mirror
> really? "managed dialogue", eh? hmmm...
Can someone explain why this comment is "insightful"?
How can you engage in a "civil dialogue" when the other side keeps sniding "really? eh? hmmm..." without giving any substantial reasoning?
Yes, the Himalayas are the youngest mountain ranges on earth, but the timescale is still way too long to explain the occurence of ice-age cycles.
We actually did a simulation using a coupled GCM to remove the Tibetan pleateau all together, to see its influence. The result was that some aspects of the current climate system, for example the Asian monsoon, or the western Pacific warm pool has weakened dramatically. The jet stream did change dramatically, but that alone was not enough to trigger a continental ice sheet.
We then changed the orbital parameters to see which impact is greater. The result was that a slight change in orbital parameters is far efficient in changing the northern hemispheric surface temperature in the order of 7-8 degC.
So the parent is correct in some respect. I guess he just didn't bother to explain in detail.