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Interesting new paper on CMIP
Touzé‐Peiffer, L., Barberousse, A., & Le Treut, H. The Coupled Model Intercomparison Project: History, uses, and structural effects on climate research. Wiley Interdisciplinary Reviews: Climate Change, e648.
onlinelibrary.wiley.com/doi/abs/10.100…
Interesting discussion of role of IPCC in driving scenarios for climate modeling (consistent with our analysis in PR20)
This is important ... scenarios are important to policy-relevant research, but they complicate physical science research -- this helps to explain the desire circa 2005 to separate socioeconomics from concentrations under RCPs

Disciplinary hegemony helped drive scenario misuse
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Roger Pielke Jr.
@RogerPielkeJr
RCP8.5 in new climate research
Some positive evolution here but misuse persists as well
frontiersin.org/articles/10.33…
One explanation for the confusing notion that RCP8.5 is both “unlikely” & “most plausible” (to 2071) is that it is one of the only scenarios available for climate research. So to conduct such research it must be used
This is a form of “lock-in” familiar to STS technology scholars
We will no doubt see more of this sort of confusion about scenarios with SSP3-7.0 and SSP5-8.5, both implausible & best used for exploratory research. Yet, they are the only baselines for the next generation of climate modeling studies. So convoluted justifications will result.
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Roger Pielke Jr.
@RogerPielkeJr
RIP Lord May: 1936 - 2020 britishscienceassociation.org/news/lord-may-…
Bob May helped me to conceptualize the ideas expressed in The Hinest Broker

I open the book with this quote of his
Bob May helped me to conceptualize the ideas expressed in The Honest Broker

I open the book with this quote of his
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Roger Pielke Jr.
@RogerPielkeJr
Big new climate paper from @BjornLomborg

Lomborg 2020. Welfare in the 21st century: Increasing development, reducing inequality, the impact of climate change and the cost of climate policies. Technological Forecasting and Social Change, 156.
sciencedirect.com/science/articl…
Lomborg observes, correctly, that differences between pc GDP in scenarios of the IPCC in 2100 is much greater than the projected impacts of climate change on individual scenarios

(Note we have critiqued these scenarios as over-projecting GDP growth: osf.io/preprints/soca…)
Lomborg's argument that SSP5 is actually a good outcome is why we see the evolution of the SSP3-8.5 "chimera" as we explain in our new paper: papers.ssrn.com/sol3/papers.cf…
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