A two-dimensional calculation including atmospheric carbon dioxide and stratospheric ozone

INCREASED use of fossil fuels¹ and deforestation² have led to enhanced levels of CO₂ in the atmosphere with an increase of about 10% since the beginning of this century¹. This upward trend is continuing and it has been predicted that the concentration may double in less than 100 years^3-5. We describe here a calculation of the subsequent effect of increased CO₂ on stratospheric ozone, using a two-dimensional dynamical model of the atmosphere including radiative and photochemical processes.