- Thread starter
- #1,626
While the outcome of the current warming is unsure, what is certain is what is causing it.
It's not certain at all what is causing it. If it was certian what was causing it, we wouldn't have 32,000 scientists disagreeing with the alarmism. The issue is the feedbacks. That's what the debate is about.
Big names in the alarmist world like Santer, Sherwood, and Schmidt admit that the models predict more warming 10 km above the equator than what the weather balloons could find. Each time they announce that they’ve resolved the differences, they have to start by admitting there are differences to resolve.
So to state the obvious, from the mouths of AGW alarmists Sherwood himself . Even he agrees the hot-spot was definitely missing.
"Climate models and theoretical expectations have predicted that the upper troposphere should be warming faster than the surface. Surprisingly, direct temperature observations from radiosonde and satellite data have often not shown this expected trend."
There are literally thousands of feedbacks, each of which either reinforces or opposes the direct warming effect of the extra CO2.
To suggest that there is empirical evidence (i.e NOT made on assumptions from models etc) that proves that human emisssions and human emissions ONLY are the main driver of any warming is wrong. To suggest that all those other thousands of feedbacks are irrelevant or have been "settled" is wrong.
Almost every long-lived system is governed by net feedback that dampens its response. If a system instead reacts by amplifying it, the system is likely to reach a tipping point and become unstable The earth’s climate is long-lived and stable— it has never gone into runaway greenhouse, which strongly suggests that the feedbacks dampen temperature perturbations such as that from extra CO2.
The reason why the sceptics are winning this debate, and why alarmists refuse to debate them is because the lack of actual empirical evidence to support thier catastrophis, alarmism, which has been exposed in recent years.