This post wasn't about «CO2 sensitivity equations» — it was
about feedback theory.
Not exact matches
In
theory, this means they provide unbiased and honest
feedback about your announcement.
Take Benson's advice, and learn a bit
about feedbacks in general systems
theory.
Any & all
feedback, compliments, additional discussion, corrections,
theories, any more questions for us, or any other thoughts
about life can be sent directly to us on Twitter.
It contains some
theory about the 4 levels of
feedback (source: John Hattie) and some information and a resource regarding how iPads can be used to allow pupils to feed back to each other in PE.
Schools That Lead continue to refine their Teacher and Principal Leadership Initiatives to incorporate the lessons they have learned from the past three years, including being clearer
about the development of an aim statement and
theory of action, acknowledging the need to make room to do the improvement work, explicitly examining culture, paying attention to student
feedback, starting small and moving slow, collecting and analyzing evidence to build warrant, and actively sharing the work — specifically the processes, results, and what worked and what did not work.
I have a bit of a
theory about this, and I'd love to get some
feedback or opinions
about it.
Our new school approach is all
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, set by a robust scientific
theory of some sort, regarding the degree of change that we humans could bring
about (given positive
feedbacks) if we just continue «business as usual» for a long period of time.
In particular, she worries that climate models «involve a lot of
theory and guesswork»
about amplifying
feedbacks that enhance the uncontested warming effect of CO2, which places her in the company of lukewarmists.
To point out just a couple of things: — oceans warming slower (or cooling slower) than lands on long - time trends is absolutely normal, because water is more difficult both to warm or to cool (I mean, we require both a bigger heat flow and more time); at the contrary, I see as a non-sense
theory (made by some serrist, but don't know who) that oceans are storing up heat, and that suddenly they will release such heat as a positive
feedback: or the water warms than no heat can be considered ad «stored» (we have no phase change inside oceans, so no latent heat) or oceans begin to release heat but in the same time they have to cool (because they are losing heat); so, I don't feel strange that in last years land temperatures for some series (NCDC and GISS) can be heating up while oceans are slightly cooling, but I feel strange that they are heating up so much to reverse global trend from slightly negative / stable to slightly positive; but, in the end, all this is not an evidence that lands» warming is led by UHI (but, this effect, I would not exclude it from having a small part in temperature trends for some regional area, but just small); both because, as writtend, it is normal to have waters warming slower than lands, and because lands» temperatures are often measured in a not so precise way (despite they continue to give us a global uncertainity in TT values which is barely the instrumental's one)-- but, to point out, HadCRU and MSU of last years (I mean always 2002 - 2006) follow much better waters» temperatures trend; — metropolis and larger cities temperature trends actually show an increase in UHI effect, but I think the sites are few, and the covered area is very small worldwide, so the global effect is very poor (but it still can be sensible for regional effects); but I would not run out a small warming trend for airport measurements due mainly to three things: increasing jet planes traffic, enlarging airports (then more buildings and more asphalt — if you follow motor sports, or simply live in a town / city, you will know how easy they get very warmer than air during day, and how much it can slow night - time cooling) and overall having airports nearer to cities (if not becoming an area inside the city after some decade of hurban growth, e.g. Milan - Linate); — I found no point
about UHI in towns and villages; you will tell me they are not large cities; but, in comparison with 20-40-60 years ago when they were «countryside», many small towns and villages have become part of larger hurban areas (at least in Europe and Asia) so examining just larger cities would not be enough in my opinion to get a full view of UHI effect (still remembering that it has a small global effect: we can say many matters are due to UHI instead of GW, maybe even that a small part of measured GW is due to UHI, and that GW measurements are not so precise to make us able to make good analisyses and predictions, but not that GW is due to UHI).
So going back to the simplistic
theory about increasing cloud cover being a major positive
feedback.
It's all as it was in those happy carefree days of 2009 and before, BC (yes, Before Cli **** ga **) as we call it now, when the MSM would happily «highlight the most alarmist aspects and downplay any mention of uncertainty» (Zorita), when no doubts were allowed, or should I say expressed,
about the holy trilogy of WG1, 2, and 3 — how certain it was that the well - accepted
theory of ghg effect, and the impacts thereof, would lead to a Copenhagen / Kyoto utopia of global cooperation, and that the IPCC was cool (whoops, «the request for more research
about the social dynamics of the IPCC, of positive
feedbacks as described by Judith, is meaningful for me» (von Storch).)
Never mind the physics of CO2 or its counter
theories... Never mind the balance of positive and negative
feedback mechanisms... Never mind estimates of «impacts»... Nor even the merits and demerits of wind turbines... The climate debate is at its core
about the form of politics that established itself in the late 20th century.
This is a very important distinction, and one some proponents of AGW try to obscure, as to the extent they can confuse the status of their
theories with classical greenhouse gas
theory, they can divert attention away from the really critical questions
about feedback, upon which AGW is based.
The model studies plus the
theory of chemical
feedbacks in the CH4 - CO-OH system (Prather, 1994) firmly established that the atmospheric lifetime of a perturbation (and hence climate impact and GWP) of CH4 emissions was
about 50 % greater than reported in the FAR.
This is something I know a fair amount
about, since my specialization at school in mechanical engineering was in control
theory and
feedback processes.
The desire to talk
about a «no -
feedback» response is based on a desire to talk
about «
feedback» in terms of the Bode (1945)
theory, which is based on the presence of a «forward or µ circuit» (Bode, Chapter IV, page 44).
On the one hand he can't admit to a
feedback factor of 2.5 from his own numbers, but on the other he can't say this warming is just due to cloud changes, because that hurts his friends»
theories about net negative cloud
feedback.
There is confusion based on the fact that when most climate scientists talk
about a net positive
feedback, they do not mean that in the same sense that it is used in systems
theory (or control
theory or whatever you want to call it).