Polar amplification in a moist energy balance model: A structural econometric approach to estimation and testing

William A. Brock and J. Miller

Journal of Econometrics, 2024, vol. 245, issue 1

Abstract: Poleward transport of atmospheric moisture and heat play major roles in the magnification of warming in poleward latitudes per degree of global warming, a phenomenon known as polar amplification (PA). We derive a time series econometric framework using a system of equations that have error-correction mechanisms restricted across equations to estimate and an identification strategy to recover the parameters of a moist energy balance model (MEBM) similar to those in the recent climate science literature. This framework enables the climate econometrician to estimate and forecast temperature rise in latitude belts as cumulative emissions continue to grow as well as account for effects of increases in atmospheric moisture suggested by the Clausius–Clapeyron equation, a driver of spatial non-uniformity in climate change. Non-uniformity is important for two reasons: climate change has unequal economic consequences that need to be better understood and amplification of temperatures in polar latitudes may trigger irreversible climate tipping points, which are disproportionately located in those regions.

Keywords: Climate change; Polar amplification; Moist energy balance model; Error-correction model; Cointegration (search for similar items in EconPapers)
JEL-codes: C32 C33 C51 Q54 (search for similar items in EconPapers)
Date: 2024
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Working Paper: Polar Amplification in a Moist Energy Balance Model: A Structural Econometric Approach to Estimation and Testing (2023)
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Persistent link: https://EconPapers.repec.org/RePEc:eee:econom:v:245:y:2024:i:1:s0304407624002306

DOI: 10.1016/j.jeconom.2024.105885

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