Category Archives: Sensitivity & feedbacks

Atmospheric Radiation Measurement Program

by Judith Curry

The first 20 years.

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Are energy budget climate sensitivity values biased low?

by Nic Lewis

In a recently published paper (REA16),[i] Mark Richardson et al. claim that recent observation-based energy budget estimates of the Earth’s transient climate response (TCR) are biased substantially low, with the true value some 24% higher.

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Towards reconciling climate sensitivity estimates from climate models and observatiions

by Judith Curry

A new paper purports to have resolved the discrepancy between climate response estimates from global climate models versus energy budget models.

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Assessment of Approaches to Updating the Social Cost of Carbon

by Judith Curry

Some new analyses are shedding some light on deficiencies in the approach to estimate the social cost of carbon.

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The cloud-climate conundrum

by Judith Curry

Four new papers remind us of the very large uncertainties surrounding cloud-climate feedbacks.

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Updated climate sensitivity estimates

by Nic Lewis

An update to the calculations in Lewis and Curry (2014).

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On inappropriate use of least squares regression

by Greg Goodman

Inappropriate use of linear regression can produce spurious and significantly low estimations of the true slope of a linear relationship if both variables have significant measurement error or other perturbing factors. This is precisely the case when attempting to regress modelled or observed radiative flux against surface temperatures in order to estimate sensitivity of the climate system. Continue reading