Quote:
Originally Posted by Spatula City
The warming isn't happening on a longer time scale, it's happening on a very short one.
The whole reason that AGW is such a serious issue is because it is happening so quickly.
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Feedback Loop. The presence of a positive feedback loop will make a system resonate around an average state. We've had a recurring cycle like the Younger Dryas, looping every 1500 years approximately. It has been going on for that past 2 million years. Through ice ages and interglacial warm periods.
The cycle goes as follows. Starting with a warming trend out of a cold period it warms very quickly. Then it cools gradually, then you get a cold snap, then you go back through rapid warming. The little ice age, and the Younger Dryas were cold snaps in this repeating cycle.
Now the start of the little ice age was several centuries in advance of where it normally would've been. So we went into it from a warmer state than normal. It was ended prematurely by the start of the industrial evolution. So it didn't cool us off as much as it should've. So we are staring the warming trend from a warmer place than we should've. Now we are adding CO2 on top of the warming trend. In short we are going to over shoot on the high side.
My read is that now matter what we are able to do we can't stop Greenland from having its ice go into the Ocean. From here it is a done deal. I'm quite sure that I'm not the only one that has concluded that the collapse of the Greenland ice sheet is the normal trigger for the start of an ice age.
Warming BY AGW is anti cyclical for the coming cooling phase. Reducing AGW or reversing it is pro-cyclical for the coming cooling phase.
The link is a good reference to an explanation of the recurring cycle. Along with the cross links.
File:Holocene Temperature Variations Rev.png - Global Warming Art
Quote:
Originally Posted by Spatula City
We can't undo AGW unless you want to detonate a lot of nuclear weapons, but that would also be only a short term solution and not a very safe one.
Without the CO2 emissions the world would only be very slightly cooler than the early 20th century instead of warmer than practically any time in the past 10,000 years.
We've had this debate before and you don't seem to realize that glaciation is NOT an immediate threat.
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I'll answer the rest in a mint.