Preprints
https://doi.org/10.5194/esd-2021-78
https://doi.org/10.5194/esd-2021-78
25 Nov 2021
 | 25 Nov 2021
Status: this preprint was under review for the journal ESD but the revision was not accepted.

Earth System Sensitivity: a Feedback perspective

Peter O. Passenier

Abstract. In the field of climate-change research a lot of effort is devoted to the ‘narrowing down’ of uncertainties in the estimation of Equilibrium climate sensitivity (ECS), the global mean warming as a result of an instantaneous doubling of the CO2 concentration in the atmosphere. The present study explores possible consequences of this narrowing down of ECS for the long-term Earth system sensitivity (ESS), taking into account ‘slow’ feedbacks due to the cryosphere response (permafrost melting and ice-sheet disintegration) to a warming world. Implications for international policy making, aiming at avoiding 2 degrees Celsius of global warming, are briefly discussed.

Peter O. Passenier

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on esd-2021-78', Anonymous Referee #1, 16 Dec 2021
    • AC1: 'Reply on RC1', Peter Passenier, 18 Jan 2022
  • RC2: 'Comment on esd-2021-78', Anonymous Referee #2, 04 Jan 2022
    • AC2: 'Reply on RC2', Peter Passenier, 18 Jan 2022

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on esd-2021-78', Anonymous Referee #1, 16 Dec 2021
    • AC1: 'Reply on RC1', Peter Passenier, 18 Jan 2022
  • RC2: 'Comment on esd-2021-78', Anonymous Referee #2, 04 Jan 2022
    • AC2: 'Reply on RC2', Peter Passenier, 18 Jan 2022
Peter O. Passenier
Peter O. Passenier

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Short summary
In the field of climate-change research a lot of effort is devoted to the ‘narrowing down’ of uncertainties in the estimation of Equilibrium climate sensitivity (ECS). The present study explores possible consequences of this narrowing down of ECS for the long-term Earth system sensitivity (ESS), taking into account ‘slow’ feedbacks due to the cryosphere response (permafrost melting and ice-sheet disintegration) to a warming world.
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