Gatsobait wrote:
basingwerk wrote:
Human hydrocarbon consumption has raised the C02 ppm count 20% in our lives!
I can't find anywhere that says it's even gone up by that much in such a short time, let alone due solely to hydrocarbon usage. 20% across the whole industrial age, maybe, but even then 6/7th of that is natural.
Check it out on
observation at Mauna Loa.
Gatsobait wrote:
What's a PID controller? Sounds like something electronic?
It can be implemented electronically, pneumatically, hydraulically, digitally or in anything else ending in -ly! It is a from of feedback control system, which models natural and artificial processes. It is used to control levels in tanks, voltages in wires, spacecraft orbits, nuclear reactor temperatures etc. Check it out
PID Loops. The climate is a system with lots of variables and a few important ones. C02 is an important one, and can be used to change and/or control the system. The system seems to be in a steady state of feedback control over a long period, and we are ending that state at present.
Gatsobait wrote:
Nature has shown itself to be capable of that sort of increase without human intervention.
The levels of C02 are unknown in human history and I am not aware that nature has shown itself capable, in human history, of adjusting to a 20% rise, let alone a much bigger one.
Gatsobait wrote:
So the question remains, how does it know the difference between it's own innocuous CO2 and our nasty version?
It doesn’t need to. It was in a steady state carbon cycle. Now we have changed that steady state by releasing a billion years of carbon from coal and oil reserves in a few decades. Nature could deal with a steady state carbon cycle, but to find a new state with the new (40%+ ?) increase over historical levels, it will take centuries and the sea will rise if the WAIS breaks up.
Gatsobait wrote:
There are millions of variables to deal with, many of which are poorly understood and some of which may not even be known.
I'm talking about carbon and oxygen - the most basic parameters of all. Please explain what other variables are more important than carbon - are there really any?
Gatsobait wrote:
To tinker with one of them (if that's even possible to any great extent) and expect the whole shooting match to tamely do what we like, is just a non-starter. We simply do not know how the bloody thing works, and lacking such knowledge predictions are iffy.
We are already tinkering with them now.
Quote:
In climate research and modelling, we should recognize that we are dealing with a coupled non-linear chaotic system, and therefore that the prediction of a specific future climate state is not possible.
That being the case (as it may be) I'd like to leave things like they were, i.e. in the steady state of last centuries. That may not be possible, alas.