Regarding the equation dT being proportional to 1 / 1 - f, you can find this in a number of papers (see Roe, 2009 for a more recent mathematical overview
of feedback analysis).
The disappointing thing about Dessler's paper is that it neither addresses Spencer's criticisms nor his
new feedback analysis method: it is simply something to be waved at anybody who cites Spencer's arguments.
The key assumption in
climate feedback analysis is that changes in radiative flux are proportional to surface temperature changes:
Used Achieving Competitive Excellence (ACE) tools such as value stream mapping, kaizen events, and
market feedback analysis to ensure continuous improvement in the commercial cell of the business.
Per IPPC: Based on the combined evidence from observed climate change including the observed 20th century warming, climate models,
feedback analysis and paleoclimate, ECS is likely in the range 1.5 °C to 4.5 °C with high confidence.
The numbers and science has not changed, but they seem to want to bury this distinction, probably because the science behind
the feedback analysis is so weak.
The source of the difference in mean lapse rate feedback between the two studies is unclear, but may relate to inappropriate inclusion of stratospheric temperature response in
some feedback analyses (Soden and Held, 2006).
One can similarly construct
a feedback analysis by perturbing the humidity, holding all else fixed, etc..
And they perhaps should have noticed something odd about
the feedback analysis.
Hard skills such as curriculum development and
feedback analysis are just as important as soft skills such as active listening and relationship management.
Strong aptitude in client interactions, data presentation,
feedback analysis and competitor awareness.