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How does atmospheric chemistry affect your climate modelling results?

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If you have a question about this talk, please contact Dr. Pranab Deb.

If external to BAS, contact the organiser for gaining access to building.

This talk will give a broad overview of how stratospheric composition changes, under increasing atmospheric greenhouse gas concentrations, can affect the large-scale climatology found in state-of-the-art climate models. The aim of this talk is not to delve deeply into the chemical mechanisms behind these effects, but rather to explain what it means in general for climate model results. Two topics will be discussed in detail. I will review, firstly, the recent discussion on the effect of tropical upper tropospheric and lower stratospheric ozone changes on global warming projections (see e.g. Nowack et al., A large ozone-circulation feedback and its implications for global warming assessments, Nature Climate Change 2015) and, secondly, the effect of ozone changes in solar geoengineering schemes.

This talk is part of the British Antarctic Survey series.

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